Z3PR said:
Normally it's 1 speaker per channel. So a 2 channel amp would be used for 2 speakers.
2 channel amps can be used for 1 speaker, 2 speakers, 3, 4 5, etc... The only question would be how the voice coils are wired together and what final impedance this would provide to the amp. This is especially true when discussing subwoofers, as there is zero concern for stereo seperation.
MTChevy said:
Hello audio guru's... first post here i think. I got a couple questions. First off heres what ive got... an85K10 pickup. i got some boxes in the cab corners and put in some 6x9's and then some whatever stock are up in the dash... i wanna say 3.5'' all JL stuff... Well, to help my friend out... (turns 18 later this month and has to pay speeding fines) I thought about buying his amp and sub. It is a Kenworth KAC-ps300T and a
Pyle
10'' 1200 Watt Red Label Square Subwoofer
How in the world would i go about hooking it up? can the amp power my 6x9's too? Thanks for the help, i really am gonna need it here 
I briefly looked into the specs for that amp (which is a Kenwood, not a Kenworth btw), they are:
100x2@4ohms
200x2@2ohms
400x1@4ohms bridged
After looking up the sub (Pyle PLSQ10D) it appears to be a dual voice coil sub with 4ohm coils. that sub doesn't match that amp well at all. The sub being DVC 4ohm coils means it can either be wired in series for a mono 8ohm load, run one channel to each coil (being sure to use a mono signal) or you can wire the coils in parallel for a mono2ohm load (that the amp cannot handle). This really limits your wiring choices, and in the end you will only be getting half that amp's potential output (200watts rather than 400).
Honestly, if you haven't already, Id pass on this deal. That sub is far from stellar in terms of performance, and while I can find no theil/small perameters on the driver, square subs are not known for requiring small enclosures (what you need for a regular cab truck). Lastly, it simply doesn't match the amplifier well at all. And all this is ignoring my opinion that square speakers are a fad/gimmick, which they are.
If you want a nice performing subwoofer that works well in very small spaces, look into the Image Dynamics IDQ's. They are notortious for playing in small sealed boxes (amazingly small) and have been a top-notch SQ subwoofer for the past several years in the competition lanes. You also have the possibility of going with an array of smaller subs, like 8's, which is really growing in popularity with regular cab owners.
