4 channel amp

[Virtual_Unknown]

im currently running an 800w 4 channel amp which is powering 4x 6*9s (i know theyre crap etc) 1 channel for one speaker - for some reason that i cant work out, channels one and two work perfectley but the channels three and four are only giving bass and no treble, ive checked the speakers and theyre fine so im lost as to what it can be?

 

[Essex_Lad]

checked that 3 and 4 arent switch to low pass filter (LPF)

 

[Frosty]

4 channel amps have independant crossovers, so you can control which speakers play chich frequencies.

You need to set both crossovers to the same settings for the same sound.

 

[Virtual_Unknown]

Quote: Originally posted by Essex_Lad on 19 May 2004

checked that 3 and 4 arent switch to low pass filter (LPF)

yeah, hpf and there is very, very faint treble, on full there is no treble and lots of bass and of lpf there like mini subs

 

[Virtual_Unknown]

Quote: Originally posted by Frosty on 19 May 2004


4 channel amps have independant crossovers, so you can control which speakers play chich frequencies.

You need to set both crossovers to the same settings for the same sound.

does this need to be done on the amp or the head unit?

 

[Evil ICE]

both on the headunit and the amp.

Are you sure the tweeters havent blown on the 6x9s. If youre playing distortion through them then theyll blow over time.

 

[Virtual_Unknown]

yeah, ive checked the speakers and theyre fine - im guessing its gotta be something to do with the settings on my h/u and amp - arse biscuit

 

[Jim.]

most prob ur amp settings by the sound of it, some amps have a mono setting too (maybe u got that switched on?) or u got ur + - cables set up the wrong way?? just a few guesses there but at least i tried lol

 

[Virtual_Unknown]

nah, my cables are definately right because the first 2 channels are working fine and ive checked most the settings on my amp with no luck so im kinda thinking its something to do with mu h/u

 

[Frosty]

How many RCA cables have you run from the head unit?

If 1, its a problem with your amp.

If 2, its probably a head unit setting.