2. amps-preamps
  3. 1096483540

Bi-amping with no pre-outs

I would like to add an amp to push the woofers in my NHT 2.4�s, but my receiver has no pre-amp outs. What it does have however is a single sub out, which I use for its intended purpose and would like to know if it is possible to split the signal for bi-amping purposes? Possibly to an Adcom GFA...
dcconners
kr4's avatar
kr4
3,680 posts
 
You cannot split the mono out into stereo.
audiobugged
528 posts
 
I have seen "Y" split xlr, & single ended cables for sale on audiogon custom made, & terminated just for this purpose.
kr4's avatar
kr4
3,680 posts
 
Not for this. He wants to bi-amp his NHTs and there's no way to get 2 stereo outs for the woofers (not the subwoofer) from a mono source.

The only solution I can think of is to go to an auto/stereo shop and get a pair of speaker-to-line level adapters. But I ain't vouching for the quality of the results.

Kal
eldartford
4,262 posts
 
Your receiver has a signal like a preamp output, which is the input to its power amp. For someone with electronic repair skills, it would probably be a minor job to bring this signal out on a pair of rca jacks, and to provide rca jacks for the signal going in to the power amp. If you were not biamping, you would simply use a short jumper between the output and the input, and many recievers have been built with this configuration. The signal may have a relatively high impedance (because it is not intended to drive a lot of wire) but if you use an electronic crossover close to the receiver it will work fine.
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