Help with pioneer 5 channel amp switch settings

[dls0680]

I have a pioneer 9605 5 channel amp with 4 speakers and a single 10” sub I have my gains set to normal and one switch in the amp set to 4 channel and the other switch set to SW but I can’t hear the sub when I have the switch set on the SW setting but when I move it over to the other setting I can hear it. Would someone be able to help me with basic settings for the switches and other settings that I should have I am at a loss. Please help

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[BOOMINGRANDPA 5,000+ posts]

my guess is when u flip it to sw u need to set lp xover to 80-100hz (if it's set at like 20 then it won't get any bass freqs) and set hp xover on speakers to 80-120hz

 

[06gtmike 10+ year member]

Do you have 6 channels of rcas plugged in to all the inputs. Looking at the manual if you only have rcas on channels 1-4 then you keep it on a/b if you have a sub rca input then you move it to sw.

 

[BOOMINGRANDPA 5,000+ posts]

Do you have 6 channels of rcas plugged in to all the inputs. Looking at the manual if you only have rcas on channels 1-4 then you keep it on a/b if you have a sub rca input then you move it to sw.

ok thats makes since i was looking at pic, yeah if u only have 4 rcas in the 1st 4 channels leave to a/b and set lp xover to maybe 125 if u listen to rock or 80 if just rap.. we had guy recently said he was missing freqs found out lp set at 40hz that y it was 1st thing i thought of..

 

[dls0680]

I will try adjusting the freq and see what happens. Thank you

 

[dls0680]

GTMike was right. When I switch it to A/B the sub works great. It’s not rca plugs for my sub. The only issue I have now is once I turn it up a little I get a barely notice able speaker hiss. I’m guessing that’s just adjustments needed to fine tune?

 

[06gtmike 10+ year member]

GTMike was right. When I switch it to A/B the sub works great. It’s not rca plugs for my sub. The only issue I have now is once I turn it up a little I get a barely notice able speaker hiss. I’m guessing that’s just adjustments needed to fine tune?

Could be a few things but try adjusting your gain down a little to see if that helps. Even “normal” could be a little too high depending on what head unit you’re using and that will cause some hiss

 

[BOOMINGRANDPA 5,000+ posts]

GTMike was right. When I switch it to A/B the sub works great. It’s not rca plugs for my sub. The only issue I have now is once I turn it up a little I get a barely notice able speaker hiss. I’m guessing that’s just adjustments needed to fine tune?

yeah if u have 5v preout hu then the normal 1/2 gain probably to high turn down some

 

[Boomin_tahoe 5,000+ posts]

There shouldn't be any hiss at all. And I have ran and installed a few 5 ch amps. w/o issues....or hissing.

 

[dls0680]

Thank you all for your help. I switched the SW switch to AB and lowered the gains and now it sounds great with no speaker hum.