Thoughts on 10 inch subwoofer.

[Original wis]

Here's you 5 cube box with 4 DC lvl 4 12s on 6000w of power with a single 8inch double flared port 21inch long

That looks pretty damn peaky to me down 6db in less than 10hz

View attachment 43141

That's a starting point. From there you tweak until you get the response that you're looking for.

My point was that 4 12's will fit. 1.25 cube recommendation can be increased slightly, I believe up to 1.5 without creating an issue.

I have that box modeling software too. I have winisd. My results differ.



But saying that it can't be done isn't true. Because you can. You modeled it.

Did I miss anything with my modeling?

 

[winkychevelle]

That's a starting point. From there you tweak until you get the response that you're looking for.

My point was that 4 12's will fit. 1.25 cube recommendation can be increased slightly, I believe up to 1.5 without creating an issue.

I have that box modeling software too. I have winisd. That's pretty much the result that I got as well..

But saying that it can't be done isn't true. Because you can. You modeled it.

Just because you can doesn't mean you should. Pretty much not matter how I modeled those subs they modeled horribly. Pretty much one note wonders.

I personally wouldn't run those subs if those ts parameters are accurate.

I would at least run them through my modeling software on my laptop instead of my phone. And I would definitely have to heavily rely on cabin gain to flatten the frequency response

 

[Bobbytwonames]

View attachment 43120 View attachment 43121

I did. They'll fit. Keep in mind that's 1/2 inch lower than the maximum height and 1 inch shorter.

FYI I've already confirmed with a pro box builder. I'm not spouting nonsense. I did the work. They'll fit.

But think what you will...


Lewis King

I hope it does fit for you. I've just seen too many boxes built that won't slide into the trunk because of the angle of entry.

 

[Original wis]

Just because you can doesn't mean you should. Pretty much not matter how I modeled those subs they modeled horribly. Pretty much one note wonders.

I personally wouldn't run those subs if those ts parameters are accurate.

I would at least run them through my modeling software on my laptop instead of my phone. And I would definitely have to heavily rely on cabin gain to flatten the frequency response

Don't have my laptop right now but when I get it back I am definitely going to run it through when ISD as well as to speaker box and see what the modeling looks like.

Doesn't have to be 6K. It doesn't have to be straight 5 cube. Doesn't have to be 30 HZ. Actually it really doesn't have to be DC Audio either. There's other options out there besides those. You start off at what you would like and you model down until you get to what works that you like.

Either way before I spend $2,000 or $2500 on subwoofers better believe I'll check pretty much every bit of information on frequency response that I can get. The point is that I know that configuration will work. The devil's in the details of getting the curve that you like.

 

[Original wis]

4 DC Audio level 4 10's in 4.8 cube 30hz 8 inch aeroport:



Maybe the 10's in 5 cube. When I get my laptop I'll see.

 

[SlugButter]

I do think the DC is overpriced, but he compared it to the deaf Bonce apocalypse in the same enclosure. I just did an enclosure for 2 deaf Bonce apocalypse 12s a couple weeks ago and they wanted 2.2 cubes at around 32 HZ per sub. DC is recommended at 1.5. I’ve never liked these videos where they just throw subs in the same enclosure and compare them. The dB apocalypse sub and that DC are different subs. Pretty weak numbers coming from that DC in his video for sure. I would’ve expected more. When you’re running tones with that wattage in just some rando enclosure, I’m not sure what he expected to find out however.

 

[Original wis]

I do think the DC is overpriced, but he compared it to the deaf Bonce apocalypse in the same enclosure. I just did an enclosure for 2 deaf Bonce apocalypse 12s a couple weeks ago and they wanted 2.2 cubes at around 32 HZ per sub. DC is recommended at 1.5. I’ve never liked these videos where they just throw subs in the same enclosure and compare them. The dB apocalypse sub and that DC are different subs. Pretty weak numbers coming from that DC in his video for sure. I would’ve expected more. When you’re running tones with that wattage in just some rando enclosure, I’m not sure what he expected to find out however.

True. I've always thought the same thing. I am pretty sure it's more for the clicks than anything else, but sometimes you can get some valuable information from it. Like don't put a DC sub in a 2.5 cube when it's spec'd out at 1.25. or double check before you risk $900 bucks without doing complete research.

Side note: the graph that I posted above was my original idea but someone told me that 10s are going to be way too punchy and to go with 12s. Either those or the Adire Audio brahma.

I've done a bunch of 2 12 systems 2 10 systems 2 15 systems. I think it's time to do something different to keep the interest going.

I'll concede that 4 10s in 5 cubes models better than 4 12s in 5 cubes. But either one works based on trunk measurements.

 

[Bobbytwonames]

True. I've always thought the same thing. I am pretty sure it's more for the clicks than anything else, but sometimes you can get some valuable information from it. Like don't put a DC sub in a 2.5 cube when it's spec'd out at 1.25. or double check before you risk $900 bucks without doing complete research.

Side note: the graph that I posted above was my original idea but someone told me that 10s are going to be way too punchy and to go with 12s. Either those or the Adire Audio brahma.

I've done a bunch of 2 12 systems 2 10 systems 2 15 systems. I think it's time to do something different to keep the interest going.

I'll concede that 4 10s in 5 cubes models better than 4 12s in 5 cubes. But either one works based on trunk measurements.

How do 4 of these 10's model in 5 cubes? American Bass HD10d2. 1,200 ounces of motor combined. 1,500 rms. each.

 

[winkychevelle]

How do 4 of these 10's model in 5 cubes? American Bass HD10d2. 1,200 ounces of motor combined. 1,500 rms. each.

View attachment 43150 View attachment 43151

Red line the 4 DC lvl 4 12 in 5 cubes at 34hz with 8inch aero

Green line 4 ab HD10s in 5cubes at 34hz with 8inch aero

All 6000w input

A much smoother response curve

 

[winkychevelle]

That's a starting point. From there you tweak until you get the response that you're looking for.

My point was that 4 12's will fit. 1.25 cube recommendation can be increased slightly, I believe up to 1.5 without creating an issue.

I have that box modeling software too. I have winisd. My results differ.
View attachment 43142 View attachment 43143 View attachment 43144 View attachment 43145 View attachment 43147


But saying that it can't be done isn't true. Because you can. You modeled it.

Did I miss anything with my modeling?

Btw you can't insert metric ts parameters into standard design calculators. You don't have 418sq inches for each 12. That why your results are different and the program by default inputs the max RMS number not the real RMS number. That has a drastic effect on vent air velocity. You really need to use the power level you intend to provide not the max number the manufacturer gives. 2800rms on a 3inch coil is gonna get stinky quick for daily.

 

[Bobbytwonames]

Red line the 4 DC lvl 4 12 in 5 cubes at 34hz with 8inch aero

Green line 4 ab HD10s in 5cubes at 34hz with 8inch aero

All 6000w input View attachment 43154

A much smoother response curve

The AB's are better?

 

[winkychevelle]

The AB's are better?

For that application yea ab10s out perform the DC lvl4 12s.

6 cubes with 2 8inch aeros is better though
Blue line is 6cubes, green is 5

The American bass have more x max and a much stronger motor

 

[Original wis]

Btw you can't insert metric ts parameters into standard design calculators. You don't have 418sq inches for each 12. That why your results are different and the program by default inputs the max RMS number not the real RMS number. That has a drastic effect on vent air velocity. You really need to use the power level you intend to provide not the max number the manufacturer gives. 2800rms on a 3inch coil is gonna get stinky quick for daily.

Yeah I caught that it's actually 67.4.

I actually thought about why I'm dead set on a 4 subwoofer system and I figured it out.

The point of 4 10's or 12's is to do something different for once.

I put a lot of work into tearing down, wiring, sound deadening, and modifying the car. While I'm sure the putting 2 of x $1000 subwoofer would be insanely loud, the satisfaction of building to my preference outweighs the reasoning behind going with 2 of x subs as opposed to 4. I'm equally invested in the build process, desired outcome of being loud enough to last for a little bit longer than normal, and the curiosity of whether I can actually build something of that magnitude that actually works. I didn't realize that the process would be so satisfying. That includes the discussions, doing the actual work and posting the results.

When I'm done and turn it on for the first time and hear it I'm probably going to pump a fist, shake my head, and laugh at myself because I actually did it and it worked.

And then start looking for an 06-08 Civic coupe with a sunroof that I can do myself.

That one will have 2 12's because I had one before this car and I never got to do a build for it and I wanted to. I'm already thinking about the Adire subs as an option for it. I'm already thinking about it. But I gotta finish this one first.

Idk if there's a name for people who like building systems because reasons but I'm sure that I'm hooked.

I'm sure someone's going to reply something to the effect that I've gone crazy but there it is,

Lewis King

 

[LFR]

Sometimes a single sub in a well built enclosure tuned right will do way better then multiple subs

 

[winkychevelle]

Yeah I caught that it's actually 67.4.

I actually thought about why I'm dead set on a 4 subwoofer system and I figured it out.

The point of 4 10's or 12's is to do something different for once.

I put a lot of work into tearing down, wiring, sound deadening, and modifying the car. While I'm sure the putting 2 of x $1000 subwoofer would be insanely loud, the satisfaction of building to my preference outweighs the reasoning behind going with 2 of x subs as opposed to 4. I'm equally invested in the build process, desired outcome of being loud enough to last for a little bit longer than normal, and the curiosity of whether I can actually build something of that magnitude that actually works. I didn't realize that the process would be so satisfying. That includes the discussions, doing the actual work and posting the results.

When I'm done and turn it on for the first time and hear it I'm probably going to pump a fist, shake my head, and laugh at myself because I actually did it and it worked.

And then start looking for an 06-08 Civic coupe with a sunroof that I can do myself.

That one will have 2 12's because I had one before this car and I never got to do a build for it and I wanted to. I'm already thinking about the Adire subs as an option for it. I'm already thinking about it. But I gotta finish this one first.

Idk if there's a name for people who like building systems because reasons but I'm sure that I'm hooked.

I'm sure someone's going to reply something to the effect that I've gone crazy but there it is,

Lewis King

I get it we used to do slot of 4 10 ported setups just to prove they could be louder and sound better than the 6 12 sealed setups that were popular at the time.we did 4 10inch mojo's in a 98eclipse and later swapped them for 4 t1 10s. We also did 4 p3 10s in a Ford 500 and 4 Memphis mojo 10s in a 96 Impala.

All of those systems sounded great and were right around 5 cubes. I haven't worked at a sound shop in 10years so I don't get to build big much anymore. My vehicles can't really fit a 6 cube box of large subs