i was in audioart in perth and i was told that if i bought a monoblock to run my two 12inch type R speakers not only will i get more wrms but the amp will run on less power. the down side is that the amp will be less reliable. how unreliable is the mono block and is a monoblock better that a multi output amp

monoblocks are better than mulit channel amps an runnig subs, becuase they have a gruntier power supply, and can feed more power, and control the sub better..

some argue that the sound isn't as good as using a class a/b, but i've never really been able to tell much of a difference.

- Stooge007 out

Generally Monoblocks are designed to run subs whereas multichannel amps are designed to run speakers.

Depending on the amp they may get more wrms, depending on the amp design it will run more efficiently, ie consume less power. A monoblock is in no way inferior to a multichannle amp reliability wise.

Yes a monoblock is better.

haha how many people wanna beat me to it

efficiency is the main advantage over a class a/b. Less current draw for the output.

not true..

my sub amp was designed for running sub's or full range speakers.
so was my last amp.
look at the DLS and Genesis amps, 2 channel amps designed to run subs.

i prefer a/b amps myself, i run oldskool SS 2 channel bridged. 500wrms and make my sub move.

true but was trying not to complicate things. Post edited

read my amp tute in theFAQ section, it will tell you why a monoblock is better for subs...

stop changing all ur names goddammit! espically u fudd

i never change my name, someone else does!

anyway ill keep using 2 channel amps till more companys bring out more a/b mono's

Audiobahn has a couple..........

i should add "good a/b amps"

A lot of people will tell you that Class D amps have too much distortion.

A lot do, but this is not true of all D class amps.....

Phil

Just as a lot of people will tell you that A/B's are not efficient.

That is not true of all A/B class amps...

I use an old school Crossfire 2 channel Class A/B amplifier which produces 600watt rms at 4ohms at 12volts,

Compaired it to the Jarcay 600watt monoblock and the sound from the crossfire surpassed it without even trying, The Crossfire bench tested at 750watt rms at 4ohms at 14.4 volts.
Without any distortion noticable.

Unless i want to do SPL DB drags, For sq as this is the sq section i'm going to stick to class a/b amplifiers

Many months ago I think it was Fuddbutter said the best sub he'd heard was a G5 off a Boston GT-28 amp
Is the GT-28 an A/B class amp?

Yes.

GT28s rock, they're one of my favorite amps.

You need four. One for left, one for right and two for the sub.

Phil

I understand the more efficient and the gruntier power supply, but does someone want to explain to me how a D class amp supposedly controls your sub better since I thought class A/B amps had higher slew rates and damp factors, or have I got confused.

Thanks

Luke

i dont think i said that.. but awesome sub and awesome amp!

3 of my fave setups have been Mr Bob's brahma and hammer/vrx combo
Critters L7 and JL combo
and my own SS rubi and OZ ME12 combo.

there have been a couple more but cant think off the top of my head at the moment

Damping factor has to be the most overrated amplifier specification ever.

^^^ I do believe that to a degree. Can someone explain what is meant to give a D class amp better control, as it seems to be a term getting thrown around alot lately and I always just thought it was the other way around but I may have thought wrong. LOL

Thanks Guys

Luke

Not necessarilly.

What he told you was seemingly a half arsed version of it.

A Class-D monoblock will run on less power then a Class A/B multi-channel amp, because a class-D architecture is as a rule more efficient.

That said, not all monoblocks are Class D, and not all multi-channel amps are Class-AB

For example, Audison's entry level SRx1 is a Class A/B monoblock, while Alpine's Alpine's PDX amplifiers are Class-D / T multi channel amps.

Likewise, a monoblock won't necesarilly always run your subs better, because there are some very gutrsy multi-channel amps out there that are designed with running subs in mind - however most of these are probably in the higher ends of the market.

Edit: Ok, few people beat me to it - I'll have to learn to read whole threads BEFORE posting

P.s. I don't belive people are trying to argue that Class-D amps provide more control, just that monoblocks do. Again, monoblocks don't have to be Class-D. That said, my current amp is a two channel amp, and is Class-T (a heavilly modified variation of Class-D) which seems to put it theoretically on the dirty end of both arguments. However it's run every sub i've put on it extremely well, and gave tons more control then my old SRx2S (a Class-AB stereo amp).

Perhaps, there should be less attention placed on the TYPE of amp, and more placed on the QUALITY of the amp? At the end of the day, who cares what the tech specs say - it's what it sounds like to your ears that counts.

Right on, the GT-42 rocks as well




I've spent all night looking for the post, I think it was this one so I got it a bit wrong
Funny how your memory works



While I was looking for that thread I found the debate over A/B vs D class has been covered before
- very interesting reading

Well anyway I intend to get the GT-28 for versatility being a 2ch class A/B amp

Mono VS Multi-Channel
The design of the power supply section determines what amp is best to run a specific speaker array.
You must look at the amplifers topology and how the "mono" is done. Many so called mono amps are stereo amps internally bridged. So, while it is a mono block amp with respect to the connections on the out side the internals are infact two channels internally bridged.
I prefer mono block amps for a couple of reasons.
1. improved dampening
2. better channel seperation
3. impedance rises, dampening etc effect the one channel only. EG a 4 channel amp with a single internal powersupply is driving saty a pair of splits on 2 channels and a sub bridged across the other 2 channels.
The impedance rise, dampening etc on any of the channels will effect the common power supply driving all channels. So during heavy bass notes the full range channels would be effected.
Cheers