Class A/B not so good for subs?

CaptainPioneer · Post by **CaptainPioneer** » Mon Jul 28, 2008 6:41 am

Ok i have run a Hifonics Titan in my friends car once and it was class A/B and that was a superhot little amp... Then it fried one of the channels and he was pissed off..

I know A/Bs run with higher power demand but does this decrease the life of them when compared to a Class D???

I currently have my Hifonics Brutus (which is broken) and it really drives my subs very nicely...

But considering the cost of replacement or repair Im wondering if its a good idea to pick up an Autotek SM2 1000?

CaptainPioneer · Post by **CaptainPioneer** » Mon Jul 28, 2008 8:12 am

no one? I know im an idiot but im thinking the Autotek might be a better idea.

Ryan from Ohio · Post by **Ryan from Ohio** » Mon Jul 28, 2008 9:14 am

Class a/b is not as efficient as class d. Inefficiency is burned off by heat.

I would let Bill look at your amp first before buying new.

CaptainPioneer · Post by **CaptainPioneer** » Mon Jul 28, 2008 9:59 am

Yea thats what i was going to do... Im just wondering though because my amp is great... I love it but still is their anything wrong with running A/B? I also hear cleaner delivery is a positive to a/b

JeremyC · Post by **JeremyC** » Mon Jul 28, 2008 10:33 am

Nope nothing wrong with running A/B, I actually prefer it in my setups.

I have ran both, and the A/B just seems to sound better. Sure you loose more power to heat, but thats any easy trade off when your top priority is SQ.

CaptainPioneer · Post by **CaptainPioneer** » Mon Jul 28, 2008 10:43 am

Well I am moving toward SQ for my Camry so maybe I will go with that

MobileAudio219 · Post by **MobileAudio219** » Tue Jul 29, 2008 3:33 pm

I think that with 95% of installs youre not going to notice a difference between a/b class amps and d class amps.

Now I'm not saying that there isnt a difference in sq, there is, but most installs arent good enough to reflect it.

A great installer will get better results with a class d running the subs then your average dyi will with a class a/b.

CaptainPioneer · Post by **CaptainPioneer** » Wed Jul 30, 2008 4:09 am

well my setup is pretty bulletproof. I have a distro-block at the battery with an inline on my 0 gauge that i have... Also have my ground to Chassis... but yea the only weak part of my system is my damn alternator... which I am a little conscerned about because i know when i run at 1 ohm with my Hifonics and im pushing hard... I notice a slight dim.

JeremyC · Post by **JeremyC** » Wed Jul 30, 2008 5:16 am

MobileAudio219 wrote: A great installer will get better results with a class d running the subs then your average dyi will with a class a/b.

I have to disagree, the installer doesn't make the amp sound better, its the rest of the install that makes the SYSTEM sound better.

Now swap that class d for a class a or class ab, and see if you here a difference.

My S10 was AB all the way around.

My first install on the accord was ab and d

My new install is all ab, and in my opinion the ab does sound better. I know swapping subs helped a lot, but I'm sure some of that has to be amp.

I guess I will know for sure in a couple weeks. I'm putting my W7 and 1000/1 in a friends car. So I can audition them side by side.

CaptainPioneer · Post by **CaptainPioneer** » Wed Jul 30, 2008 5:17 am

well i Think i will go with the A/B im just worried about heat issues thats all...

Jeremy are there any tricks with cooling you could suggest?