PPI PCX-2200, No Sound

Okay guys Im running 3 x JL Audio 10W6v2-D4 with 3 X PPI PCX-2200....one for each sub bridged......

PPI PCX-2200 specs:

2 Channel

2 X 200w @ 4ohms

2 x 400w @ 2ohms

1 X 800w bridged

Does this amp give out 1 x 800w at 2ohms or 4ohms and if it gives it at 4ohms and my sub was wired 2ohm was the amp running 1600w? Cause right now all 3 of my amps have power but no sound (bass) and overheating (amps are burning hot). Also setup was running fine for 2 days

So were they running :

1 x 800w @4ohms

OR

1 x 800w @ 2ohms

OR

1 x 1600w @ 2ohms

???????

Also if i cant run each amp bridged can i use only one channel per amp for each sub? Will I still get 2 x 400w @ 2ohms but using only one channel?

boardinbum wrote:

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Most multi-channel amps aren't stable at 2ohms in bridged mode unless stated in the user manual. If you've been running it bridged @ 2ohms, and it quit working, my guess would be you blew the amp.

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But if i would of blown the amp wouldnt it not turn on? Cause the amp still has power (led still on)

DYohn] wrote:

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our amp is in protection mode.  It requires at least a 4-ohm load when bridged.

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So you mean if i run it in 2ohm it will always go into protection mode?

possessed007 wrote:

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DYohn] wrote:

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our amp is in protection mode.  It requires at least a 4-ohm load when bridged.

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So you mean if i run it in 2ohm it will always go into protection mode?

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Unless you get very lucky, yes.  A few amps will stay stable below their rated impedence loading, but generally not PPI.  Protection mode keeps the amp from burning up.

possessed007, you should get the impedance load terms right so you and whomever you're talking to will always be on the same page. 

"So you mean if i run it in 2ohm it will always go into protection mode?"

Running your amp at 2 ohms is fine.  Why?  Because when you say what load you're running the amp in you should be talking about per channel unless you specifically say "bridged".  You are bridging a two channel amp with 2 ohms of impedance, so instead of running the amp at 2 ohms you're actually running it at 1 ohm.  ( 2 ohms bridged across two channels equates to a 1 ohm load on each channel.)  That's why your amp is in protection mode...it's being loaded with too low of impedance:  2 ohms (per channel) being the lowest load it will accept.

A 4 ohm load bridged is a 2 ohm load on your amp, which is acceptable.

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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

stevdart wrote:

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possessed007, you should get the impedance load terms right so you and whomever you're talking to will always be on the same page. 

"So you mean if i run it in 2ohm it will always go into protection mode?"

Running your amp at 2 ohms is fine.  Why?  Because when you say what load you're running the amp in you should be talking about per channel unless you specifically say "bridged".  You are bridging a two channel amp with 2 ohms of impedance, so instead of running the amp at 2 ohms you're actually running it at 1 ohm.  ( 2 ohms bridged across two channels equates to a 1 ohm load on each channel.)  That's why your amp is in protection mode...it's being loaded with too low of impedance:  2 ohms (per channel) being the lowest load it will accept.

A 4 ohm load bridged is a 2 ohm load on your amp, which is acceptable.

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Okay now I understand.......but just in case......

1 JL Audio 10w6v2-D4 it can run 6ohm or 2ohm.....

So if I bridge the PPI-PCX2200 and I have my JL setup for 2ohm my amp is running 1 ohm?

So I would be better off leaving the JL at 6ohm and the amp bridged I will run at 3ohm?

Please confirm.....

Or will I be better off running the JL on one channel of the amp at 2ohm and leaving the other channel free?

stevdart wrote:

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possessed007, you should get the impedance load terms right so you and whomever you're talking to will always be on the same page. 

"So you mean if i run it in 2ohm it will always go into protection mode?"

Running your amp at 2 ohms is fine.  Why?  Because when you say what load you're running the amp in you should be talking about per channel unless you specifically say "bridged".  You are bridging a two channel amp with 2 ohms of impedance, so instead of running the amp at 2 ohms you're actually running it at 1 ohm.  ( 2 ohms bridged across two channels equates to a 1 ohm load on each channel.)  That's why your amp is in protection mode...it's being loaded with too low of impedance:  2 ohms (per channel) being the lowest load it will accept.

A 4 ohm load bridged is a 2 ohm load on your amp, which is acceptable.

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Can I use only one channel from the amp at 2ohm and leave the other channel free?

possessed007 wrote:

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Can I use only one channel from the amp at 2ohm and leave the other channel free?

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Why would you want to do that?  If you connect the speaker @ 2ohms to only one channel, you get 400 watts.  If you connect the speaker @ 8-ohms to both channels bridged, you get 400 watts.  Only in the higher-impedance bridged mode the amplifier will run 4 times cooler, much quieter and with far less noise or chance for distortion.  A better solution all around.  Just make sure you set your gain properly for the 8-ohm net load.

DYohn] wrote:

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JL 10W6 has two 4-ohm voice colis, so each woofer can be wired for 2 ohms or for 8 ohms.  Where do you get 6?

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sorry i meant 8 or 4....

DYohn] wrote:

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P>

possessed007 wrote:

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Can I use only one channel from the amp at 2ohm and leave the other channel free?

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Why would you want to do that?  If you connect the speaker @ 2ohms to only one channel, you get 400 watts.  If you connect the speaker @ 8-ohms to both channels bridged, you get 400 watts.  Only in the higher-impedance bridged mode the amplifier will run 4 times cooler, much quieter and with far less noise or chance for distortion.  A better solution all around.  Just make sure you set your gain properly for the 8-ohm net load.

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oh yes I forgot .....8 or 2ohms your right.......

Its true I mixed up the JL ohms.....Illl just bridge it and run the JL at 8ohms.....when you mean watch out for the gain at 8ohms can you be more specific?

possessed007 wrote:

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DYohn] wrote:

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possessed007 wrote:

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Can I use only one channel from the amp at 2ohm and leave the other channel free?

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Why would you want to do that?  If you connect the speaker @ 2ohms to only one channel, you get 400 watts.  If you connect the speaker @ 8-ohms to both channels bridged, you get 400 watts.  Only in the higher-impedance bridged mode the amplifier will run 4 times cooler, much quieter and with far less noise or chance for distortion.  A better solution all around.  Just make sure you set your gain properly for the 8-ohm net load.

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oh yes I forgot .....8 or 2ohms your right.......

Its true I mixed up the JL ohms.....Illl just bridge it and run the JL at 8ohms.....when you mean watch out for the gain at 8ohms can you be more specific?

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sorry i menat 8 or 4ohms

possessed007 wrote:

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sorry i menat 8 or 4ohms

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It's 8 or 2 per woofer.

Your amplifier input gain control must be set up to match the output from your HU and to deliver it's power into the load being presented.  Your amplifier produces 400 watts into 8 ohms, which corresponds to about 56 volts output.  Do a search for setting gain or refer here if you don't know how to do this.