Y-adapters for RCA, bad?

[tee 10+ year member]

I got this good deal for a new HU, only thing wrong, one of the two pairs of RCAs doesn't work. Now I have to use Y-adapter because I'm using my amp in 3 channels. My question is, what are the consequences of using the Y-adapters instead of having both pairs of RCAs working to run a pair of comps and a sub?

****, I just found out that this is the speaker section, I should be in the HU section.

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[twisztdauthorit 10+ year member]

none?

 

[elementxero 10+ year member]

No separate controls for bass boost/eq/etc if they are all coming off one set (not off the HU at least).

Other than that I doubt you will have any issues. I'm not sure if there would be a voltage drop in the preouts having them split but even if there is most preouts put out more voltage than you really need, though you can't argue with a cleaner clearer pre-amp signal

 

[ultimate157 5,000+ posts]

No separate controls for bass boost/eq/etc if they are all coming off one set (not off the HU at least).
Other than that I doubt you will have any issues. I'm not sure if there would be a voltage drop in the preouts having them split but even if there is most preouts put out more voltage than you really need, though you can't argue with a cleaner clearer pre-amp signal

Negative. Voltage only drops through components in a series circuit with different resistance.

No problem at all using a splitter.

 

[helotaxi 5,000+ posts]

Most 4 channel amps will allow you to run signal to all channels with only 2 channels of input. Before you get a set of y-cables see if your amp has this feature.