Ohms and connecting speakers

[rineanna]

Hi everyone, this is a PA related question. I'm running a Prosound 1600W amp into two 8ohm speakers. I want to add some subwoffers to it and am looking at buying two 4Ohm ones. How would I connect this up or can I? Woofer has a built in passive xover so I was thinking amp --> woofer --> tops
How would the ohms workout then. Could I run like that without doing damage?

[rineanna]

I also have another power amp so would I be better off running the woofers off one amp and the tops off another?

[mickeydg5]

That all depends on the amplifier being used.

It would be best to run with separate amplifiers if things match up correctly. Subs require more power especially if lower SPL.

[P A U L]

Check the amp's spec's to see what the rating is for ohms. Most solid state amps will say no lower than 4 ohms. If you are running 2- 4ohm speakers, you would be best to either run each on it's own amp, or somehow wire them in series (8ohm), but then you'll need a high(er) powered amp.

Just checked: http://www.maplin.co.uk/power-amp-1600-220537

This amp would be pretty good to use in stereo mode @ 4ohms 1 sub/speaker per side. If the other amp is lesser power, it would be better to run your top-end/mids through that...

[rineanna]

Thanks guys. I'll keep things safe and use two amps