Noventa

I have a ppi pc4100 4 channel amp. If I bridge both channels and run each channel to its own 12" sub sharing a common chamber, would this be the ideal setup in order to get the most spl out of it? My subs are rated at 4 ohms 600watts each, and I believe the amp is rated at bridged 2 x 400 wrms @ 2 ohms. The subs are crappy boss audio 600w, but is this amplifer strong enough to power them both to there full potential?

Thanks

Chadxton

iTrader: (1)

I would say absolutely. You're keeping the input config the same, and you're bridging 2 sets of stereo channels, therefore making 2 same mono channels. You'll be giving each sub now 400 RMS apeice rather than 100. That's the way it should have been set up initially, IMO.

Tha-Game

um with those subs, u will only get about 200w RMS each, cus they are 4 ohm coils, and to get 400w per channel u need to run a 2 ohm load,

Chadxton

iTrader: (1)

Just don't be dumb with the volume control.

I had 100W RMS each channel just going to a set of 5¼" components that were rated for 40 RMS and they didn't die. So power itself isn't going to kill your equipment. It's more of how you use it.

geolemon

Nope...
An amp that's 2 ohm stable will only be stable down to 4 ohms when bridged.
When you bridge an amp internally, you are doubling the rail voltages, inherently doubling the amount of current flowing through the components inside the amp...
And that's what dictates what impedance an amp can handle at any rate - how much resulting current will potentially flow through the amp.

And the power adds up, if you look at it:
For example, an amp might do:
50 x 2 at 4 ohms stereo,
100 x 2 at 2 ohms stereo,
200 x 1 at 4 ohms mono

Note that in stereo mode, the amp is able to put out 200 watts total - at 2 ohms.
And in mono mode, the amp can put out 200 watts mono - but note when bridged, that happens at 4 ohms.

If you tried to bridge the amp to 2 ohms mono, the amp would TRY to make about 400 x 1... and likely smoke itself in the process.

maltesechicken

If its sealed, PORT IT!