6 speakers in a 4 channel setup with mixed impedances

[spikes527]

Hey all I'm new to these forums so I hope I'm in the right place... anyway I currently have a 4 speaker system hooked up to my Crunch PZX1200.4. The speakers are 2 ohms so that's 300w per speaker. (even though the speakers are only rated for 150w rms at 2 ohms, but that's another story) I have a pair of 6x9 kickers that are rated for 150w rms at 4 ohms. My question is can I wire my 4 2ohm speakers to one channel (either in a series, parallel, or series-parallel) and the 2 4ohm speakers to the other channel safely? Sorry I know that's a long one! Any help would be greatly appreciated.

Click to read more...

 

[pickup1 5,000+ posts]

Series the 2 ohm on the front channels,4 ohm for the rear.

 

[spikes527]

Ok if I do the 4 2ohms in a series what is the total load that the amp sees for the 2 front channels? I just don't wanna blow something! Thanks again.

 

[Jeffdachef 5,000+ posts]

wire all 4 of your 2 ohm single voice coil speakers in series/parallel, two on each of the front channel and each channel will see 2 ohms.

 

[n2audio 5,000+ posts]

I currently have a 4 speaker system hooked up to my Crunch PZX1200.4. The speakers are 2 ohms so that's 300w per speaker.

No - it's about 60w per speaker.

I have a pair of 6x9 kickers that are rated for 150w rms at 4 ohms. My question is can I wire my 4 2ohm speakers to one channel (either in a series, parallel, or series-parallel) and the 2 4ohm speakers to the other channel safely?

Yes -- Run the 2 ohm speakers in a series which gives you 4 ohms on two channels. That's probably 40-50w rms per channel so 20-25w per speaker.

Then run the 6x9's on the other two channels which will get you 40-50w per speaker.

It's a much lower stress situation (4 ohms per channel) than it was just running the four 2 ohm speakers (2 ohms per channel).

 

[Louisiana_CRX 5,000+ posts]

you can add passive crossovers and make it work