2. amps-preamps
  3. 1153965606

2 Pre-Outs?

I have a high end preamplifier (which has 2 balanced pre outputs) connected to two stereo amplifiers, both J. Rowlands 112's. Each amp is connected two a pair of 8 Ohms loudspeakers with fairly equal efficiency ratings.
When I play a source (digital or analog) both loudspeakers lose their inherent sonic virtues, particularly gain. When I play each one individually(by turning off one or the other amp.), each pair performs flawlessly.
Should I increase the gain on the preamp?
drmoles

Showing 2 responses by bignerd100

bignerd100
515 posts
 
Are you stacking?
Most speakers will not sound good played simultaneously with annother pair.
Most speakers introduce their own phase shifts throughout the spectrum. It would be rare that two models, from two different manufacturers, with two different efficencies would have the same phase shifting characteristics. Regardless of phase going into the speakers you are hearing serious cancelation.

Good luck!
bignerd100
515 posts
 
There is a large difference between home theater/surround sound and two pairs of speakers simply playing the same information. HT involves intentional differences in phase and timing for matrixed surround sound and discrete channels of information for DVD's.

Otherwise we could simply use the B-speaker outputs of a stereo receiver to surround ourselves with sound.
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