How to get rid of clarion amp hissing noise.

[protonman 10+ year member]

I am running front components speaker Alpine 6.5 type R, and panasonic headunit mxe-c5401, and clarion amp dpx1001.2, its a 2 channel amp, class T amp

The clarion amp does as follows

150x2--at 4ohms

300x2--at 2ohms

500x2--at 1ohms

600x1--at 4ohms bridge

1000wx1--at 2 ohms bridge

The problem is that when I used this for my alpine type R components at 150x2 and I get this hissing noise, put cd on pause and hissing is there, kind of loud.

Remove RCA and the hissing noise goes away, tried different rca, still same noise.

I then put in my other amps in and the noise is gone, even with old rca cables.

I put in a carver, proton, lanzar, infinity amp and no noise present. Then put the clarion amp back in and same noise, hissing noise.

Are these class T amps noisy for stereo mode or for high sound and only good for bass or to power only the subs.

I don't want this only for the sub amp and I like its flexibility in going either sub or front ends in the different combination of 4-1 ohm range. But looks like so far too much noise in this amp. By the way, I bought it refrubished by clarion factory.

But I don't think that being refurbished effects the noise problem.

Is this noise in stereo front speaker common to all class T amps.

Anybody have this amp or similar problem, can you help. Or my last resort is to take this amp back.

Other option is to buy DLS A3 amp which is similar but cost like $$$$. Clarion tech help sucks.

What should I do.

Update, I just hooked up the clarion amp as a sub amp mono mode to 2 10"jl audio wire output as 2 ohm load so supposedly giving it a 1000 watts. And no noise at all when doing CD pause test, but I figure its the low noise doesn't produce that hissing noise. And this amp sure doesn't pound like a heavy hitter.

If only I could get rid of this hissing noise when used a front amp for my components.

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[slain93gsr 10+ year member]

are the gains on the clarion properly set. I know when my tweet amp wasnt properly set i would have a bit of noise.

 

[Ctminime 10+ year member]

i had that noise when the preouts on my old pioneer were going bad.... try it on a budies car or on another deck and see what happens.... even tho it might not do it on other amps that might be what it is... u never know... just try it out.... i havent had noise like that or any other that was undesired since i got my alpine.... and this is also the reason i am a complete pioneer hater...

 

[protonman 10+ year member]

By the way, when I pull the rca from the clarion amp, the noise is gone. So I tried different rca and still noise is there. But the same rca and different amps and noise is gone.

This is with car engine on and off, doesn't make a difference.

SO is this an amp problem or just bad rca, or rca picking up noise.

I even routed the rca over the seat and far away from any other cables.

I even took the ground straight to battery and still noise humming there.

Its not an alternator wine noise either, doesn't vary with speed, stays same level. Gain is set at low and high, doesn't make difference. Noise is more amplify as I increase the gain.

Anyboyd with any ideas.

Anybody have used this exact amp or find reveiws on this amp. WOuld help

thanks.