Question: Amplifiers for subs and speakers Options

[bloodrain]

Long story short, my friend is giving me his sound system, its a box with 2 15's and a 4 channel amp. I have an extra pair of 6x9's laying around my house and was wondering if I could hook up the 6x9's to the other 2 channels. Would this hurt anything? Would I fry the speakers?

[GTS13]

Typically most 4 channel amps don't have a low pass filter needed to keep mids and highs out of subs. However given the chance that yours does, you could be ok; except for the fact that you have 15's that will probably want a lot more power than what your 4 channel can produce. I could go on and on if you'd like. Use the 4 channel for your highs and get a new amp for your subs.

[str8thugginit4ya]

Typically most 4 channel amps don't have a low pass filter needed to keep mids and highs out of subs. However given the chance that yours does, you could be ok; except for the fact that you have 15's that will probably want a lot more power than what your 4 channel can produce. I could go on and on if you'd like. Use the 4 channel for your highs and get a new amp for your subs.

^^^^What he said. If you're a sound enthusiast as myself and you like your music to sound clean, then I would use the 4-channel amp for you mids & heights and buy a monoblock amplifier to push your bass. But don't let me pressure you, do what you feel is best for you. All I'm trying to say is, is that your system would sound MUCH cleaner!