question on rca inputs on DD S4 and C2a amps

[tcguy85 10+ year member]

does anybody know whether the RCA inputs are differential inputs or not? i guess that can matter when buying rca wires.

Click to read more...

 

[lilmaniac2 5,000+ posts]

ive never heard of differential inputs...

 

[tcguy85 10+ year member]

ive never heard of differential inputs...

ok anyone else?

 

[tcguy85 10+ year member]

anybody know? where is Louisiana crx at? maybe he'll know!

 

[tcguy85 10+ year member]

anybody??

 

[Flipx99 5,000+ posts]

The S4a has the same RCA inputs as any other amp I have ever hooked up. It has four inputs: RF,LF, RR, LR. Any quality RCA cable will work.

If you are trying to get one, LMK.

 

[tcguy85 10+ year member]

The S4a has the same RCA inputs as any other amp I have ever hooked up. It has four inputs: RF,LF, RR, LR. Any quality RCA cable will work.
If you are trying to get one, LMK.

i have the S4 and C2a. i am having noise issues.

i posted my problem over on diyma and this was one response....

See, if the amps have differential inputs.. any noise brought onto the shield in the rca's will be passed on if the shield is in fact wired to the barrel.

i have narrowed my problem down to the rca's. i wrapped the cheapo ones i have in an aluminum foil tape and the noise is mostly gone but not 100% gone yet.

 

[Flipx99 5,000+ posts]

I will look at it tomorrow. Just PM me the link. I am going home now.

But to answer your question, there is nothing different/special/etc about the RCA inputs on those amps.

 

[tcguy85 10+ year member]

I will look at it tomorrow. Just PM me the link. I am going home now.
But to answer your question, there is nothing different/special/etc about the RCA inputs on those amps.

PM you which link?

pretty much i was looking to get some new rca cables now that i narrowed it down to them. i am being told if the inputs are differential inputs and i get rca's that have the shielding from barrel to barrel that i may be screwing myself.

 

[Flipx99 5,000+ posts]

I am not sure what you mean by shielding barrel to barrel?

I have some medium grade streetwires and no problems.

 

[tcguy85 10+ year member]

I am not sure what you mean by shielding barrel to barrel?
I have some medium grade streetwires and no problems.

i guess he is saying if the shielding actually touches the barrel(connectors) on the rca's then the noise will be brought right into the amp if the inputs are differential. i'm not really sure what differential means or anything. the guy telling me to find out is a pretty smart dude over there on diyma.