Does /o/ get into car audio? Car audio thread

>nigger mating call contraption

be a faggot or an immigrant

>>15644827
I had a full Polk Audio MM series setup in my Wrangler for a few years. Bought everything on eBay for about $1,500. Had 5-1/4" components in the dash, 6-3/4" components in the overhead soundbar and two 8" subs in the back. Had a 500 watt rms 4 channel Polk amp for the components and a 500 watt rms Kenwood amp for the subs. The speakers lived fine in the Wrangler since they are marine rated, but over time the amps developed corrosion and eventually fried. It's not my dd anymore so I never bothered replacing them. Now I've got a mustang gt premium with the Shaker 500 sound system. It's alright for stock, but ultimately I want to replace the door speakers including the 8" shallow subs with some nice component speakers and maybe put a couple of 10" subs in the back.

>>15644827
Used to be more into it. Still have my system in my FJ, but I wouldn't spend that much money building another one. My other cars have stock audio.
>inb4 more sour grapes, ricer HU, peepee amplifier, muh aesthetics

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>>15644872
Full polk?

i have a 1996 chevy c1500 excab. put a dual amp and shit pioneer speaker in it first. liked the okay bass. then i put some kicker 6x9 coaxes in my back pillars in lieu of the stock 4x6 jokes. then i swapped to a kenwood kac 7202. bascially a mid-shit tier amp. bridged to 460w hooked up to my new VM encore 10" high excursion sub in a sealed box it bangs pretty good. i put some tweets in the front doors and hooked it all to my alpine deck. the other day i put this goofy adapter on the deck that hooks to the CD changer port and gets a 12v input to charge and dock to my ipod classic, which stays in the glovebox. for a shitty college kid budget i did pretty well.

>>15644827
I have a shitload of stuff from 10-15 years ago when I first had a car and was into that. Almost none of it ever got installed in my current car and the stock audio on a 2nd gen Focus leaves a lot to be desired. I put a set of Aura 6x8s in the front and called it good enough.

Also
>plywood
>construction quality
>pleb tier wood screws
>tiny vent
>alpine type r

Is that the "I'm 16 and think this is good" starter kit? The only good part of that picture is the fucking frog.

>>15644827
I had a kicker sub and a kicker amp when i was in highschool. One of the square ones. The box wouldn't fit in the trunk of my next car so sold it on craigslist for $100

>>15645388
All you have is a set of aura 6x8 in the front(even left the back upgraded lmao!!!) and you are going to bag on MY build!?! Do you even have an amp running to your front 6x8s or are you running 20 watts of rms power from your head unit to them. Fucking kek, now i KNOW that sounds like shit. I dont even need the type r to destroy your pathetic sound system, my morel mids and highs will do it. And ive been doing this for a very long time. I can tell from your green texts that you have no idea what you are talking about.

>plywood
You mean birch plywood? Pretty big fucking difference.

>construction quality.
I did ALL of that cutting with a harbor freight sawzall. I could do better but i dont even have a circular saw right now.

>pleb tier wood screws.
No air leaks. Box is super tight. Screws are 3 inches long. Are you retarded?

>tiny vent
800 RMS. No need for massive port.

>alpine type r
>trying to say alpine type rs arent one of the better cheap sq drivers.

And on top of that, that buick is my dd. I can do better with my mustang.

Used to make more sense, but now the upgraded systems in cars are okay for me. Maybe a mixture of being less of a child and the systems getting significantly better. My Range Rover with the Meridian sounds bretty gud.

>>15647571
I don't know about you, but the only "premium" systems from the factory that are worth a damn are the ones in luxury cars (Mark Levinson, the S-Class Bose system) or the Rockford systems in Mitsu's

I have the Sony system in my Fusion and it sucks because you can tell the amps are holding back the system because the bass doesn't go louder or hold the same level when you turn up the volume, or the clarity of the treble goes out the fucking window

Why can't OEMs make a head unit with frequency controls and not just bass/treble? Sure it'd better than when they just had a "tone" button, but come the fuck on

Car audio you say? I have a 120 dollar pioneer radio hooked to a bass tube straight from the mid 80s. Get on my level.

Other car has a Sony system from the factory, sounds good enough to not have to replace, was gonna add a sub to it but I don't want to waste trunk space

>>15647598
Fellow Ford owner, quit lying to yourself, the Sony system is shit

>>15647594
Yeah, luxury cars.

Mercedes is Bang & Olufsen in the S-class now, it's pretty good. There is a mega system that takes up some trunk space, and then one down from it that doesn't which is what I'd recommend.

Land Rover is using Meridian which sounds very nice. I think the Premium one makes more sense than the highest system in that.

Porsche is Burmeister which sounds good enough also.

But even my 2006 Grand Cherokee with the upgraded system was good enough, I remember wanting some bass but there was some aftermarket Kicker piece you could buy from Mopar that worked if someone really wanted more bottom end.

I think mainly I'm just getting old and don't need my head rattled anymore.

>>15647660
I don't need my head rattled either, but I'd like to be able to hear my music when the windows are down on the highway, the shitty Sony system in my Fusion can't even do that

I'd just want to replace my speakers with Polk speakers and a decent sub with two small amps, the sub being no more than 500W

>>15647666
Ah that's a shame. I'd think Ford would have that figured out.

>>15647675
They don't care, it's an upscale just with their name alone

>>15647660
Mercedes is using Burmester in their current cars.

Lexus is using Mark Levinson, which from what I gather is consistently the best OEM audio in the industry.

>>15647725
What ever happened to Volvo and Dynaudio? Those systems were awesome.

>>15647730
They lost the contract, Dynaudio has been with VW for ages

>>15647755
How do they sound? Ever heard them?

Dynaudio used to be pretty good, not sure what they are like now.

>>15647769
The non-factory systems are still top tier, still all about SQ, Focal tier

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Spent about 400 dollars on my system and it sounds great

>>15647782
Hey dog fucker, is that a Doge Shadow?

If it's too loud you're to too old.

With that being said, it better be a really balanced system or I'm not interested in hearing everything rattle.

>>15647788
Is it a what?
It's a ford.

>>15645944
Why don't you carpet it? Regardless of how well you built it exposed plywood, yes even birch, looks shitty. I don't get why you didn't use mdf it's so much cheaper and does the exact same job in this situation. Also why do you have it propped up? That shouldn't be necessary if the box is built well.

The Burmester in the new Panamera sounds pretty nice to be quite honest familia

>>15647811
MDF is more fragile and twice as heavy as plywood, not good fur a car IMO.

>>15647782
>$400
>car is worth $500 at most

>>15647811
Box rise and weight.

MDF is very heavy, weighs down the car. Birch plywood is half the weight(not over exageration). Also, box rise. Birch plywood is stronger and less flexible than MDF. Box rise is when the enclosure flexes too much it will put stress on the woofer or cause overall box internal space to fluctuate.

>>15647782
Elaborate on system. You have my attention!

I currently have a sub in my truck, it is a $60 one from O'Reillys. But it's just floating around in the back seat area.
Any recommendations for where the fuck to put it? I was thinking take the speaker out, and mount it in one of the storage compartments, but they are pretty small and probably won't have the right volume of air.

Wat do?

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>>15648064
"box rise"
lmao, if the enclosure flexes the woofer isn't at risk, the basket is strong and rigid, what's at risk is your SQL and SPL.
The amount of volume that would fluctuate would be so small as to be completely irrelevant and not worthy of mention.
Subwoofers aren't that picky about the size of the box.
>>15648058
??
You don't even know what I've done to the car lmao.
>>15648072
the cheapest pioneer head unit with a subwoofer out and bluetooth, infinity kappa component speakers, JBL 2 channel amp for the doors, Eminence LAB-15 4 ohm and some shitty ass 750w rms Dual amp for the sub.

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>>15644827
Coworker Gave me pic related for my car. I believe it's a 6th order band pass sub. It pounds and the music quality is awesome.

>>15648093
>if they enclosure flexes your sub isnt at risk.
Not true. Woofers rely on airspace for efficiency. As the cubic feet gets bigger than recommended the woofer forces itself to work harder and because of this causes mechanical stress. Smaller than recommended boxes cause internal vacuum because of woofer internal pressure sky rockets under high power. internal vacuums destroy subwoofers VERY fast, especially in sealed enclosures.

>Subwoofers arent that picky about box size.

What!?!?! Enclosure size to spec is absolutely vital for many reasons!

>Cheapest pioneer headunit with RCA out and bluetooth.
Not too bad. Im sure this is listenable.

>Infinity Kappa components.
Nice! Not only did you seperate the mids from the highs but you also got a good brand.

>JBL 2 channel amp for the doors
Nice again for the doors but what about the other speakers? Atleast you are running an amp on mids and highs though. So many only run that shit if their 20 wpc headunit... Ughh.

>Eminence Lab 15
Best part of the build here. Excellent sq woofer! Hate the sensitivity on it at 88 but this is no doubt sounding great for you. Probably goes into the abyss on lows!

>Dual amp
Ughhh... Its like having a ferrari thats powered by a 3.8 ford v6.

>>15648202
What sub? What amp?

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>>15648064
Weight is the dumbest reason not to use it. You are putting a fucking 40lb+ magnet in your trunk.

>>15648255
I'll make sure to check the actual specs when i get home. Still super new to car audio

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>>15648247
>Not true. Woofers rely on airspace for efficiency. As the cubic feet gets bigger than recommended the woofer forces itself to work harder and because of this causes mechanical stress. Smaller than recommended boxes cause internal vacuum because of woofer internal pressure sky rockets under high power. internal vacuums destroy subwoofers VERY fast, especially in sealed enclosures.
What forum did you read this off of?
I've custom designed and built hella boxes, this is the biggest load of bullshit I've ever read.

>What!?!?! Enclosure size to spec is absolutely vital for many reasons!
Literally download WinISD and fuck around for 5 minutes and realize how fucking wrong you are.

Lmao your entire post

>>15648271
Ever think that maybe a light box is a good idea because of the 40lb magnet???

Retard.

>>15647928
Do you plan on throwing the speaker box around? I doubt a comparable thickness of mdf is even close to twice as heavy. If you are worried about weight don't put a huge magnet in your trunk. Problem solved. Birch plywood is expensive as fuck in comparison and there are no benefits in this application. That's why no one uses it.

>>15648294
Holy shit. You are going to save maybe 5lbs by using birch. You are Fucking retarded for wanting to spend twice as much for the same result.

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>>15648295
>I doubt a comparable thickness of mdf is even close to twice as heavy.
Bruh, I've built boxes out of both and MDF is literally twice as heavy, a sheet of MDF is about 105lbs while a sheet of plywood is 50-60.
It's not that much more expensive, a sheet of MDF is 30 and birch is 50.

>>15648285
Ok, So its ok to put a 15 inch Zv5 into a 1.4 vented cubic foot enclosure, huh? you seem really smart.

This isnt your forte. Give up.

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>>15648313
>1.4cu ft
Who said anything about 1.4cu anything?
How much do you think a box is flexing?
You'll gain or loose maybe 0.2% of box volume due to flex of the enclosure.
Subwoofers aren't as sensitive to changes in box volume as you believe, go ahead and fuck around in winisd and model some shit up and find out for yourself.
3cu ft box reduced to 2.5cuft will have very little difference in the resulting performance, 3cu ft reduced to 1cu ft will become an issue.
Why do you think they sell generic speaker boxes, because they still work for whatever speaker you throw in them, it's just not optimal.

>>15648295
>doubting mdf is twice as heavy.
Why do people insist on acting like they know what they are talking about when they clearly dont.

>>15648307
That's about a 40% different in cost you widow licking retard. All thought coon tunes have scrambled your brains.

>>15644872
I too had don't this to my yj
>dat cute ass 4x6
>demand bomb ass 6x9s in boxes on the fenders
Soundbars are for chumps

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>>15648342
>40% difference
>20 dollars
If you're that poor why are you even fucking around with car audio?

>>15648335
I say enclosure size is vital... Yoy say im wrong. Therefore, Sundown Zv4 will apparently operate efficiently in a 1.4 cubic foot vented enclosure.

Or are you taking this back now because you realize how stupid your statement was?

>>15644827
only if you mean exhausts and engine tuning. otherwise, no.

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>>15648360
I don't have to take shit back, I've already done the experiments to back up my statements.
You can too, but instead you'll just shitpost endlessly.

>>15648375
You are a total retard who thinks they can stuff a 5000 watt 18 into a 1 cubic foot enclosure and get good results.

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>>15648384
I never said that, but ok lmao

>>15648354
If you are worried about weight why are you Fucking around with car audio?

>>15648401
Because you can take measures to have less impact on the weight of your car, and you should.
Horrible mentality you have 2bh pham

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>>15648424
It is vital yes, but it's not as big of a factor as you believe, being +/- 10% on your enclosure size will have very little effect on the performance of your sub, and flex of the enclosure will be much much much less than 10% of the total volume.
You're actually trying to say the flex of the box, changing the volume of the box, will have an effect on the sound quality, that's completely absurd.
However, the flex of the box will have an effect on sound quality, but not for that reason.
Enclosure resonance is bad, any sound generated that isn't from the speaker or port is distortion, any time the box is vibrating, that's distortion.

>>15648412
> woofer
> amp
> wiring
> capacitor
> extra battery?
> high output alternator?
That is such a small amount of weight compared to what you are adding its completely autistic to be concerned about it.

>>15648455
When you keep weight in mind during the design of the entire system, it's easy to make a difference.
Class D amps often weigh 1/4 of what an equal power class a/b would weigh, the wiring can be copper clad aluminum which is also much less weight.
Capacitors are a meme and when using class D amps efficiency is in the high 80% to low 90%, therefor much less power is consumed, allowing you to to use small gauge wiring which is lighter, allowing you to use the stock alternator, stock battery, all lighter.
Using a high efficiency sub like the LAB15 (which is also a very light sub), allows you to use smaller amps to get the same SPL.
Using plywood instead of MDF halves the weight of the box, the biggest weight reduction you can make in the whole system.
>capacitor
Nice meme tho

>>15648475
> The biggest weight reduction in the system.

An unnecessary and heavy system. If your car is shitty enough that you can tell the difference in acceleration between an mdf and a plywood box maybe you shouldn't spend hundreds or even thousands on a sound system for it.

>>15648534
>you should not be concerned about the weight of your car
lmao

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>wedge phone between sun visor and headliner
my jams

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>>15644827
Literally wtf is that supposed to be/do?

>>15647612
Not in my Sho. Not sure what you're driving sir/ma'am

>>15648544
So what do you consider loading it down with unnecessary electronics? I would say that's not caring about the weight of your car. How's that corner you backed yourself into?

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It does its job

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>>15644827

>>15648654
I am conscious of the weight of my car and I am conscious of me need for loud music, you can have both with some forethought like mentioned in
>>15648475
Maybe if you installed a system you designed from the ground up instead of just buying a bunch of shit from Best Buy you'd realize you can have both.

>>15648676
The idea is solid but the execution is poor

>>15648704
> Need for loud music.

Fuck off teenager.

>>15648743
Something tells me you're okay with a loud exhaust "if it sound good"

>>15648749
An exhaust weighs little to no more than the original and can, but not in all cases, increase performance. Generally you need a tune and complementary mods to see much difference. If you just have a cat back it's just for noise and that's gay as fuck. I'm glad you could tell I'm a real enthusiast haha.

>>15645436
Craigslist does have a lot of cheap subs so I might pick on up too

>>15648714
ambitious but rubbish

>>15648596
The enclosure is thin but long. The piece of wood stops the woofer from hitting the trunk floor. I have plans for the open area on the block aswell.

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>>15648093

You are a moron. Any loudspeaker reproducing content below 13,000Hz is extremely sensitive to enclosure volume. For you to assume that a woofer is not sensitive to enclosure volume speaks wonders about the piss-ant level you are at.

Fuck me.

And box rise, if you want to call the impedance curve that, has nothing to do with the rigidity of the enclosure. A base loudspeaker in an anechoic space has a particular impedance curve with the peak of the impedance occurring at Fs. Once the mechanical (QMS) and electrical (QES) compliance is altered by the acoustic impedance of the enclosure, the electrical impedance is altered and rises by a small value in various parts of the impedance curve.

>>15648285

WinISD is far from accurate. It is far from ideal, and the results are not transposed to the real world. If you model your designs anechoically you should see that WinISD does not effectively model port mach, nor does the expected response match the output. You should know this, but you very much do not.

>>15648375

What are you doing here? You have a Constant Directivity horn with what looks like a 60x40 flare, with another HF device in an 80x80 or 90x90 non-CD horn on-axis above the first. Going out on a limb and assuming that you haven't used a processor to combat their fucked mutual coupling, that's retarded.

We learnt early on (around the EV Manifold era) that stacking multiple HF devices willy-nilly with various waveguides was a bad plan. Did you miss the memo?

>>15648441

Distortion and overtonality are different phenomena and described as such. Lurk moar.

You are an uppity, condescending cunt with little base knowledge. Your playing with a free and basic modelling suite combined with a handful of poorly executed enclosures isn't worth a pinch of shit.

>>15650037
box rise is a fucking meme, get the fuck outta here

WinISD is accurate you dumb fuck, all the subs I've built with it measured very closely to the projected response in winisd, I bet you've never even fucking used the program.
If winisd isn't accurate for you it's probably because you fucked up the units putting in driver data like a pleb.

Both horns are CD, and no it doesn't have a fucking processor, I designed the speaker with a passive crossover for home theater use.
I plan on selling those soon and going 2 way with my JBL 2x15 double bass bins and a SEOS-15 waveguide, that waveguide is fucking epic.

Anything that isn't the intended signal is distortion, literally get rekt.
put in 1khz tone, get out 1khz tone.

Any recommendations for a 5x7? Was thinking about something in the 50W RMS range because I don't really want to deal with running new wires for the speakers.

>>15644827
I've seen more than one car this summer whose trunk lid was vibrating fiercely due to the subwoofer. Maybe the occupants don't notice, but all of us walking on the sidewalk could hear the buzzing of the trunk lid as the car passed by. Definitely uncool. And applying the black stereotype is not always right. These were white kids listening to rap-like staccato words.

Car audio is fucking retarded. Trying to make anything sound good in a metal and glass box is totally pointless.

>t. acoustics engineer

>Have bigass car with a tonne of shit in the boot
>cant fit a sub otherwise it will get rekt by all the tools and shit i have floating around + bad roads
What do? Carfags here suggested a slimline but i want a 10" in the parcel tray or is that a bad idea

>>15650272
I agree, a car is a horrible place sound wise, but I still need phat ass bass to blast my trap shit so ya gotta do what ya gotta do.
I at least measured my system with a measurement mic and REW, set the levels and subwoofer phase, dialed in the HPF and LPF, that's all I'm gonna do, anything else is a waste of time and money.

>>15650299
I don't know what a parvel tray is but you can put a sub in the trunk and take measures to ensure it doesn't get fucked up.

>>15650312
I was thinking of just making my own box enough for a 12" but facing the sub in a different direction so it wont fucking get rekt by all the shit floating around

Gonna have to be one tough box

Do you even source file though?

Not really worth putting a lot of money into a system for MP3 audio (even compressed to 320kbps from FLAC) past a small sub to even out the bottom end.

Also, why would I want to add weight?

>>15650312

Did you measure inside the car after it was all installed? REW is a good little program but I'd have thought a car is too small and too complicated a shape for it to accurately measure.

>>15650325
plywood and duratex should work well desu, maybe some steel corner protectors would be a good idea as well.
>>15650352
MP3V0 or MP3 320 is transparent, you wont be able to tell the difference with audiophile headphones, let alone in a noisey ass car with shitty 100 dollars speakers.

>>15650357
Yes, inside the car with everything installed, the FR outside the car vs inside the car are two separate things lol

>>15650352

Don't be that guy who seriously thinks he can blind A/B high quality compressed and uncompressed audio files.

>>15650370
Brainfart.


Metal sub box? Weight isnt a issue what would it sound like?

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>>15644827
>muh weight
>muh boot space

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

>>15650384
Metal could work just dampen the inside well and try to make it out of something other than thin ass sheet metal or it'll vibrate like crazy.
I know a guy who makes hifi speakers completely out of metal and they sound amazing, he sells them for tons of money.

>>15650370
Exactly, so why would I put a bunch of money into a high quality setup if it can only sound so good?

>>15650374
Maybe not, but listening to vinyl rip FLAC with a high-quality DAC and audiophile headpohones is definitely a different experience to listening to a normie itunes download in the car.

>>15650412
Oh that sounds mad got any pics? What if i made a metal box and lined the outside with wood?

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>>15650415
The sound file is not the limiting factor of a system and it never will be, put your money where the most returns will be had, the speakers.
A transparent amp is easy, a transparent DAC is easy, high quality sound files are easy, killer speakers are not.
Vinyl is full of distortion, on average vinyl has about 2-3% distortion at the null points, also inner groove distortion is a problem, as well as channel crosstalk, surface noise etc etc
I have a couple high dollar turntables and cartridges and I never use them, vinyl is cool but it's not better than digital.
The only time vinyl makes sense is if the vinyl master is different from the CD master and you want both versions of the album.

>>15650423
ye pic related

>>15650415

>lossless compressed audio formats

Total meme, the gold plates cables of the digital audio world.

>>15650445
Cheers mate i think ill go down to bunnings

>>15650312
>I agree, a car is a horrible place sound wise, but I still need phat ass bass to blast my trap shit so ya gotta do what ya gotta do.

I wouldn't say horrible, but "poor" seems more appropriate. I am able to crank it up in my car whereas I can't in the house.

However poor car audio is, my house has a lot of windows. So I can't crank it up as others in the HOA (yeah bite me) can hear the audio outdoors. If it is too loud or the type of music is objectionable, then others in the HOA can complain. They usually don't though because it has to be really loud like rock concert loud.

Other houses can crank it up pretty loud and you can't hardly hear them. I know as I've been in other neighbor's houses. But I opted during the house design phase to put in a LOT of windows. I use "duette" type blind coverings so you can get what I was trying to do with lighting. As a result, the house is brighly lit almost everywhere with fairly shadowless natural light. It cannot be done unless the house was positioned and designed with windows for this. The penalty is that sound leaks out despite the double glazing.

Before you criticize the HOA, the neighborhood is pretty secure. No house with glass walls survives in a normal city neighborhood. It would become a "thrown rock" magnet from vandals who would travel there just for LOLs.

As proof, about half a mile away in a decent but no HOA neighborhood, someone had expensive tempered and laminated glass walls (just like how a storefront has glass walls). Naturally, vandals traveled to his place to continually break his wall down with thrown rocks. Because it was a wall, he had to keep replacing it. Finally he gave up and made an opaque normal wall with normal windows. You can't have nice things without vandals traveling miles to come attack. He needed an HOA and walled-off neighborhood but had none.

So, I am happy with my HOA even though it means I can only crank it up inside my car.

>>15650473
I have HOA issues as well but even when blasting at literally 120db it's not that loud outside, and then you gotta think the neighbors are inside their house which is yet another layer of sound blocking walls it has to travel though.
I guess if your windows are open it's another matter though it'll be loud as fuck outside.
I'm trying to move out of the HOA area right now because I can't work on my cars without getting fined, it's pretty bullshit.

>>15650498
>I'm trying to move out of the HOA area right now because I can't work on my cars without getting fined

Build a detached garage. That should be legal. Then you can do whatever you want inside them. The HOA should allow you to build one yourself. As long as you have the base properly laid and plumbing and a utility sink put in, that would be nice. To avoid the "he's building another house" complaint, you can still have an attic in a detached garage that is accessed by a pulldown ladder or stair. You can then store stuff up there.

Since you are not afraid of working with wood and know how to use a joiner, planer, tabletop saw, and router without fear, you are already beyond 99% of the people in /o/ that are armchair critics.

Moving to a non-HOA area increases the theft risk of any outdoors items like cars. I am so used to the "no theft" nature of my neighborhood that it would be a huge culture shock to go back "into the wilds" of living in a normal city neighborhood.

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>>15644897

>>15650088

The impedance of the driver is affected by the enclosure. If you wish to call this box rise, then call it what you want.

WinISD is not accurate. The modelling is incorrect. If it suits your application, that's great. WinISD does not use FFT, and is inferior in design purposes to FFT products and is far inferior in it's algorithm to FFT products. Measurement wise, if you are using the BBP or WinISD RTA, that's abysmal.

If you measure your cabinets like the image above, that is horrific. Which loudspeaker are you on-axis to? Why do you have both the microphone and loudspeaker coupling with one pie radian plane? This is not how RTA is conducted.

My driver data library is quite good, thank you very much. And my use of modelling is also quite good. If my data works for SMAART measurement and Lake processing, it should work quite okay for a limited application like WinISD. But Fisher Price software gives Fisher Price results.

You say that your cabinet does not use a processor as if that is something to be proud of. You are using a passive filter network to link two HF devices with differing waveguides reproducing identical frequencies. You have a pair of CD Horns with differing dispersion working together (that's very dumb). The passive filter network has no way to adjust for phase rotation, and with abomination you have built, there will be great than 720 degrees across the bandwidth.

And you are going to use this for theatrical use?

No, there is a difference between an overtone and distortion. There is a difference between intermodulation and distortion. There is a difference between harmonic and unharmonic distortion. There is a difference between mechanical interference and distortion.

The SEOS waveguide is nothing without a compatible driver. Does the driver you are using have a phase plug, or a DM ring? No good.

You are a very basic fellow. Why do you think you have an air of superiority when you display nothing but mediocrity?

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>>15647811
>why didn't you use MDF?
>Use MDF
>MDF

>heavy
>uglier than T-111
>far more prone to moisture damage

>>15648714
>The idea is solid but the execution is poor

Is it recommended to paint the insides of the cabinet with some sort of smooth glossy paint so that none of the audio is absorbed by the porous wood? Or does that create harsh reflections inside and weird interference patterns? If that is the case, then lining the insides with sound absorbing foam is better?

>>15651056

Lining the enclosure with absorbant material causes the reflected wave from the rear and sides of the enclosure to slow down in the material. The reflection is then moved in the time domain, and so the phase is rotated. Because the reflection is now further away in the time domain and is somewhere but significantly out of phase than the incident wave the reduction in output is less. It 'tricks' the loudspeaker into behaving as if the enclosure was slightly larger in volume. Something similar can be done by making the enclosure a trapezoid, thus the five or so decades of 'Trap Box' concert enclosures. The trapezoid shape moves the reflection in the time domain, so that the reduction in output is less apparent.

If Mrcummy was correct in thinking that loudspeakers are not sensitive to things such as a ten percent change in volume this wouldn't be a measurable change. But he is so far incorrect it's amusing, and as a result it is a very measurable change.

The downside to the lining is the increase in group delay, and a reduction in sensitivity. This isn't such a drama in reflex bass boxes, but a huge issue for anything reproducing the frequency of speech or instruments above 440Hz.

Sound up to five or six thousand Hertz will not be interfered with by the timber. Drivers reproducing above five or six thousand Hertz will most likely be a closed back driver or will require such a small volume that the issue is not very important at all. Painting the inside of the enclosure will stop rot and degradation of the enclosure though, and that's always a plus.

>>15648285
I could never get winISD to work right.

>>15650871
You planning on parking in a lake retard?

>>15651157

Nobody plans to have water spilled in the car, or a seal fail and allow rainwater into the car, or your foolish friend leaving a half-sealed water bottle in the back with the enclosure.

Shit happens, and when unsealed MDF is wet, it really happens.

>>15651170
I've had an mdf box for 10 years. I throw snowboards back there all the time and the box is fine. Using plywood is pointless.

>>15651223

Your positive experience does not change MDF being vulnerable to moisture. For your happy story of not fucking your shit, there are many stories, images, threads, videos of angry coloured people upset that their MDF enclosure behaved like MDF when wet.

Far from pointless, but perhaps you cannot see the point. There is a big difference.

Voidless ply has a lower Fs too, so there is that. Horses for courses.

>>15651237
He's a dumb cunt just stop replying

>>15651237
You can't cite retards complaining on the internet. Mdf is susceptible to moisture but one exposure to water won't ruin it unless your car gets caught in a fucking hurricane.

>>15651584

My luck has been the complete opposite. Beer and water have claimed my MDF enclosures, furniture backings and the chest of drawers when I let the fishtank overflow. All of these are one time exposures.

I've had my boot seal let go one night, conveniently when we had about a hundred mill of rain through the night. Surprising amount of water in the boot for a small tear, and the enclosure was not usable.

Shit happens, ply will usually withstand it.

>Want t build stealthbox in the center seat of my truck
>Know shit all about building sub enclosures
It's gonna sound like shit

>>15651679

Give it a dig. There are plenty of videos and forums for people who haven't built one before. With a quality loudspeaker and amplifier, you'll probably surprise yourself.

Faggot here, thinking of upgrading my stock audio.

Just a couple of questions, if I upgrade the subwoofer only with an amplifier, it will only boost the bass right? How do I adjust the bass level? From the amp?

Also, is it best to install everything instead of a single part of the speakers? Meaning I have a 7-speaker set up, should I replace all 7 at the same time including the sub?

>>15651736
>If I upgrade my subwoofer only with an amplifier, it will only boost the bass right?
Uhhh, yes because only the sub is receiving the amplified power, nothing else is, also are you talking about a stock subwoofer? Putting an amp on a stock subwoofer is a bad idea because most stock subs aren't good and can't take much power to begin with, it would be better to get an aftermarket unit
>How do I adjust the bass level? From the amp?
There are two ways, either you can adjust the gain level on the amp itself or you can use a gain knob that is hooked into the amp via an RJ12 connecter and run typically into the drivers side area of the cabin
>Should I replace all 7 at the same time including the sub?
You don't have to, but it's recommended you do because a sub will overpower a stock speaker setup
Since yours is 7 speakers, are you saying it has six speakers + subwoofer or six standard speakers + center channel?

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>>15650243
>Mfw I can't get my trunk lid tight enough or from the latch to get it to stop vibrating
I need to get some heavy matting and thicker insulation, it seems ;__;

Btw, you really can't hear the trunk lid resonating from inside the car, not me at least.

So if I just want decent mids and highs, can I just replace the front or front and rear seat speakers? I don't need that much bass probably, and I don't want to kill the tilt seat space.

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>>15651679
Before putting in any stuff, make sure you look up the sound insulation and Dynamat thread. It had a lot of useful discussion and products listed.

https://archive.4plebs.org/o/thread/15364893/

>>15652326

Of course you can. Not everyone wants the low frequency extension. You will still benefit from higher quality loudspeakers.

>>15650828
an entire post based completely on assumptions, false ones at that, fucking loling right now.
Do you have to try this hard to be a complete fuckwad or does it just come naturally?

>>15652340

Assuming what? I am not assuming WinISD does not use Fast Fourier Transform as it does not. I'm not assuming the BBA and WinISD RTA is abysmal, it is abysmal.

I'm not assuming you are 'measuring' that abortion incorrectly, you are 'measuring' that abortion incorrectly.

I'm not assuming you are measuring this abortion while accidentally coupling with one pie radian space, you are accidentally coupling with one pie radian space. You don't RTA an enclosure with the enclosure coupling with the ground as a plane, nor do you sit the RTA microphone on a flat plane. That's ridiculous, you fool.

I'm not assuming two CD horns with differing dispersions, differing drivers and response mounted on-axis will couple horrifically. That's exactly what happens. This is comb filtering, nodes and antinodes at it's most basic, and you can't even get that. As said, we stopped throwing various horns together in the Manifold era.

I'm not assuming you aren't using DSP for your abortion, you've made that clear. The only slim chance you have to make this unit perform as WinISD or Hornresp has made you think it will respond is with DSP. A parts bin fifteen with a pair of compression drivers on a passive network with no time or phase compensation is a bitsa fucking shit.

I don't have to try hard at all. It comes naturally when conversing with absolute mongoloids. It's amazing just how low you set the bar, but just how loudly you proclaim your skill and ability.

Seriously, you swing your nuts around like you're top shit when you've built a fucked up 70's trap box with mismatched drivers, a car sub from a Lab 15 where you couldn't be fucked to put in a speaker terminal and some sort of large enclosure with a group delay that will still be ringing well after the incident.

>>15652340
You're arguing against some sort of ivory tower elitist. No matter what, those elitists will only accept that they are right. That's been the case even in /a/ where many perception-based things have subjective interpretations.

>>15650473
>>15650498
Why do you feel the need to have your music excessively loud? Are you both black?

>>15652819

He's arguing with a front of house engineer, you peanut.