can someone tell me the difference between the two when were talking about amps? whats the difference between 200 watts @ 4ohm mono and 200 watts @ 4ohm stereo?

Mono, (either from two channels bridged or a single channel amplifier), is the total power the amplifier will produce into a given impedence ie. 200@4ohm mono.

If someone was to say 200@4ohm stereo it would likely mean 200watts per channel at 4ohms ie. 200x2@4ohm on a two chanel amplifier.
Although some manufacturers may say 200@4ohm stereo meaning total power, all channels driven.

Hope this helps.

Good question ! I have a situation...

I have a zapco AG750 . These are the specs:

175W x 2 @ 4ohm stereo
350W x 2 @ 2ohm stereo
750W x 1 @ 4ohm mono

I want to power a e8a4.4 dual 4ohm sub.
In what configuration will I run this sub with my amp ?

[ January 12, 2004, 11:26 PM: Message edited by: Rob ]

In simpler terms

Mono = 1
Stereo = 2

:D

The only way to wire up that sub with an impedence the amp will find friendy is to wire each coil on its own channel.
ie. left side on one coil and right side on the other.
That will give the sub ~350rms.
If you find that the sub is not getting enough power look for an amp that can handle 2 ohm mono and sell the AG750 to me cheap. :D

well 350 rms is about 400 watts on a zapco, so that will be perfect for my lil e8a ! :D ;) [img]graemlins/headbang.gif[/img]

^^^^ Or wire the coils in series and bridge the amp is actually what I would do. The sub will still be seeing ~350rms and only getting half the potential of your amp but the power is there if you decide to add a second e8a or a higher power handling driver in the future.

^^^^ Will that even work ? If you bridge the amp you have output at 4ohm... if you series the coils you have 8ohm and if u parallel them u get 2ohm... Please explain.

It will work just fine...the amp will put out the same amount of total power at 8ohms mono that it does at 4ohms stereo. The added bonus is the fact that if there is any difference in output between the 2 channels, running it in mono will save you trying to match the gains exactly so that each coil gets the same power from low to full output. The amp will stay nice and cool, the sub gets lots of clean power with full damping factor, and you can add another sub later if you want to.

HTH

Series the coils for 8 ohm mono, or just run it in stereo. [img]smile.gif[/img]

However, it would have come in handy if e8a's were orderable in Dual 2 ohm.

[ January 13, 2004, 08:45 AM: Message edited by: Chadxton ]