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Y cables and output?

post #1 of 3
Thread Starter 
I'm planning on adding 2 more identical subs to my current dual setup. I currently running a older receiver ( Pioneer Elite sc-09tx) that has a left and right LFE out. So I'm thinking of putting a y for each left and right LFE out so I could do 4 subs. Now my question is does running y splitters have a effect on output or voltage?
post #2 of 3
Quote:
Originally Posted by rhed View Post

Now my question is does running y splitters have a effect on output or voltage?
No, it won't affect voltage levels, but the added load may* not be appreciated by your AVR. If the two LFE outputs do not give a different signal, it's quite possible that they are simply a pair of parallel sockets. If that's the case the input impedances of all 4 subs will be in parallel. If the load impedance of the amps powering your subs is 10k, 4 in parallel will make a 2.5k load. If the two outputs are seperately buffered, then each will see 5k. Most opamps will cope OK with a 2k5 load so it should be fine.

* Unlikely, but mentioned for completeness.
post #3 of 3
Thread Starter 
Ok thanks.. I think on the sc-09 the two lfe outs are independent. As to what I've read in the sc-09 thread. I guess that's why when I do calibration MCACC calibrates each sub one at a time.
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