system help

Syris · Post by **Syris** » Thu May 25, 2006 10:47 am

I just got my

2 Fusion Encounter 12's
-Power Handling  400 Watts
-Voice Coil  2 Kapton SVC
-Impedance  4 Ohms
-Free Space Resonance (Fs)  27Hz
-Efficiency (1w/1M)  91dB
-Frequency Response  23Hz * 3kHz

With

1 Sony XM-d400p5
-Channel Configuration 1 mono
-Low Pass Filter (variable) 50-300 Hz
-MOSFET Power supply
-Max. Ouput Power : 1 x 800W at 2 ohm
-Rated Ouput Power : 1 x 400W at 2 ohm

My problem is that i can keep them playing only at low levels of the cd player, and when i start turning the volume up the subwoofers go out and the amp goes into protection mode. The cd player keeps playing and doesnt skip a beat although without the subwoofers going. If I turn off the unit and turn it back on the subwoofers will begin playing again once I turn my volume to that level off where they stop playing before.

I've checked my ground and checked it again and it is fine.

High Society · Post by **High Society** » Thu May 25, 2006 11:11 am

Well first off that amp isn't the greatest, and when an amp goes into protection like that it's because it's wired at an ohm load the amp isn't stable at. Is that 400 rms for each sub? If so you will be under powering those pretty badly. Make sure that amp is stable at 2 ohms, or see if them subs are wired correctly.

Syris · Post by **Syris** » Thu May 25, 2006 11:17 am

its 400 max on each sub

High Society · Post by **High Society** » Thu May 25, 2006 11:29 am

okay, are you sure they are single 4 ohm?

Syris · Post by **Syris** » Thu May 25, 2006 11:32 am

yes, http://fusioncaraudio.com/products.php?category_id=5

Bwcad1 · Post by **Bwcad1** » Thu May 25, 2006 11:33 am

your gain is to high turn it down.

Syris · Post by **Syris** » Thu May 25, 2006 11:38 am

i have the gain all the way down

Bwcad1 · Post by **Bwcad1** » Thu May 25, 2006 11:46 am

u sure you have it all the way down and not all the way up? what is it pointing at?

lotas · Post by **lotas** » Thu May 25, 2006 12:34 pm

Yeah sounds like it might be all the way up. When it goes into protection mode is it hot? Also don't keep doing this, stop listening to it now until you get the problem fixed.

Ryan from Ohio · Post by **Ryan from Ohio** » Thu May 25, 2006 3:10 pm

If the gain was all the way down then you would hardly have any bump

So it could be all the way up.

The ground may be to long or in a bad location.

It could just be the Amp being a normal Sony product...lol