Amp whining on 3,4 channel

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HeLLonEarTH

Junior Member

HeLLonEarTH

Junior Member
Mar 20, 2015
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Hello guys,

i am facing this problem. i have a 4 channel amp, 2 2 channel amp. Connected on my distribution block for +/-/rem. both of my 2 channel amps has no issues. Comes to this particullar amp. the 4 channel amp. channel 1 and 2 is fine. but 3 and 4 has whining issues. whistelling type. Anybody know whats the problem>? im not sure if its the grounding issue. but i have changed severel places of grounding. and they share the same ground by using a distro block.
 
Last edited:

Izso

Boooooossst
Helmet Clan
Moderator

Izso

Boooooossst
Helmet Clan
Moderator
Mar 28, 2004
14,750
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KL
Hello guys,

i am facing this problem. i have a 4 channel amp, 2 2 channel amp. Connected on my distribution block for +/-/rem. both of my 2 channel amps has no issues. Comes to this particullar amp. the 4 channel amp. channel 1 and 2 is fine. but 3 and 4 has whining issues. whistelling type. Anybody know whats the problem>? im not sure if its the grounding issue. but i have changed severel places of grounding. and they share the same ground by using a distro block.
The amps itself internally are grounded properly?
 

^pomen_GTR^

7,000 RPM Member
Senior Member

^pomen_GTR^

7,000 RPM Member
Senior Member
May 13, 2010
7,510
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The Mines
Hello guys,

i am facing this problem. i have a 4 channel amp, 2 2 channel amp. Connected on my distribution block for +/-/rem. both of my 2 channel amps has no issues. Comes to this particullar amp. the 4 channel amp. channel 1 and 2 is fine. but 3 and 4 has whining issues. whistelling type. Anybody know whats the problem>? im not sure if its the grounding issue. but i have changed severel places of grounding. and they share the same ground by using a distro block.
what kind of rca cable to that amp used? and also the incoming power supply routing.....u need to put that power supply cable away from the rca input cable....

sometimes the simplest solution was the perfect solution...