Subwoofer Specifications

[squeak9798 5,000+ posts]

We're going to have to set you up with an ABX test for Class A vs. Class D //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Here's the guy to talk to:

http://www.carsound.com/cgi-bin/UBB_CGI/ultimatebb.cgi?ubb=get_profile;u=00000008

No one has won yet. Good luck.

 

[Justintoxicated 10+ year member]

Do I get to pick my selection of amps and subs for the test? I mean obviously I would not be able to tell the difference in an SPL sub. but should be able to in a SQ sub?

I mean if there was NO difference they why does everyone think you should not sue class D with Components? I mean obviously there must be more clarity in an A/B amp?

Squeak, if you were in my shoes and were offered the Awesome Discount on the DLS, Which would you choose? Koda or DLS ? RL-P not really an option.

 

[squeak9798 5,000+ posts]

Do I get to pick my selection of amps and subs for the test?

Yes, yes you do.

I mean obviously I would not be able to tell the difference in an SPL sub. but should be able to in a SQ sub?

That's the debate //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif Thus far, RC's test proves otherwise.

I mean if there was NO difference they why does everyone think you should not sue class D with Components?

This is where you need to make a clear distinction. There are of full range class D amplifiers which are 100% suitable for use on component sets. Xtant, Infinity, Alto mobile and Eclipse all have or had full range class D amplifiers. They are not uncommon in home audio aswell. It's a common myth that class D can't be ran full range because a lot of car audio class D amps are not designed to run full range. But, this is not the case.

The problem is that many car audio class D amps are not designed to run full range because they are designed to be bandwidth limited. So no, those you would not want to use on components. However, this is a limitation of the amplifier itself via it's design, and not a limitation of the technology as a whole.

But, this discussion is centered around subbass, where the amplifiers were designed to operated.

I mean obviously there must be more clarity in an A/B amp?

See above //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Squeak, if you were in my shoes and were offered the Awesome Discount on the DLS, Which would you choose? Koda or DLS ?

I would probably go DLS myself. But, I don't want my opinion to sway your decision, since it ain't my money and ain't going in my car.

You're just going to have to bare it and go with your gut instinct. Just look at it this way; Either way you will be happy.

 

[JimJ 5,000+ posts]

Richard Clark lives in Burlington? Holy shit, I didn't know that before. That's less than twenty minutes from my parent's house.

And you say "no one has won yet", but somebody's come close enough for RC to dismiss the individual test...

Again, I'll offer to do ABX testing between my NAD 3020 and a choice of several different toplogies, for anyone in the SW VA area //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[squeak9798 5,000+ posts]

And you say "no one has won yet", but somebody's come close enough for RC to dismiss the individual test...

??

Last I heard RC was still doing the individual tests. He just doesn't have as much time for it, so he isn't going as "out of his way" for people.

But, even then;

Out of the thousands and thousands that have attempted, from amatuer to pro, from world sound quality champions to the engineers themselves who build the amps.....one has come close.

What's that tell you //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[Justintoxicated 10+ year member]

??
Last I heard RC was still doing the individual tests. He just doesn't have as much time for it, so he isn't going as "out of his way" for people.

But, even then;

Out of the thousands and thousands that have attempted, from amatuer to pro, from world sound quality champions to the engineers themselves who build the amps.....one has come close.

What's that tell you //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

That A/B is better? lol

j/k

Ok if I go with the DLS, their Amp is A/B so in your opinion I guess thats a bad thing, but you would still get the DLS.

Hell I'm so utterly confused what I should do at this point I'm about to just grab 2 ARC's 10" for $250 and use my Class D amp and call it a budget system. Since I have no way to determin between DLS and KODA I could just cheap out...I Just really did NOT want to have to redo my system should i find something much better.

There has to be some difference between A/B amps and D. DLS won the world championship last year and all their Comp amps are A/B, why is this? There must be SOME difference. Maybe they just controll the woofers a bit better?

Oh yea and anyone else familiar with any of these free to offer your opinion on which of my possible systems would be best also I'm not going to be able to decide for myself unless I just go with OHHH Those DLS look pretty, pitty I won't be able to see them in a downfiring box lol.

 

[squeak9798 5,000+ posts]

Ok if I go with the DLS, their Amp is A/B so in your opinion I guess thats a bad thing, but you would still get the DLS.

//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

I never class a/b said it was a bad thing. Hell, I'm running a class A/B (Soundstream Rubicon 702) on my Rl-p right now, as a matter of fact.

I just said to not switch amps based solely off of amp topology, or to compare amps based solely on amp topology.

The "downside" of A/B for a sub amp compared to class D is comparatively lower efficiency.

There has to be some difference between A/B amps and D. DLS won the world championship last year and all their Comp amps are A/B, why is this?

LOL....because of the install and tuning of the system.

Not because of the amps.

Plenty of people have won championships using class D amps for their subs.

Hell, I bet there have been people to win using the full range class D amps I mentioned earlier.

There must be SOME difference.

Efficiency, for one.

And there are a lot of differences from a design aspect.

Maybe they just controll the woofers a bit better?

Audibly? No.

 

[Justintoxicated 10+ year member]

//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif
I never class a/b said it was a bad thing. Hell, I'm running a class A/B (Soundstream Rubicon 702) on my Rl-p right now, as a matter of fact.

I just said to not switch amps based solely off of amp topology, or to compare amps based solely on amp topology.

The "downside" of A/B for a sub amp compared to class D is comparatively lower efficiency.

LOL....because of the install and tuning of the system.

Not because of the amps.

Plenty of people have won championships using class D amps for their subs.

Hell, I bet there have been people to win using the full range class D amps I mentioned earlier.

Efficiency, for one.

And there are a lot of differences from a design aspect.

Audibly? No.

Well if allis true then why woulden't class A/B be bad? if D is jsut as efficient and clear and uses less power? Please explain?

If these are all such awesome sounding woofers? Then am I going to be able to tell a difference in SQ from the 2 ARC's for $250 vs the DLS setup for close to $1000? If not I may as well just get the ARC Audio woofers's. And have a DLS/Eclipse ARC combo.