Murph;193709 Wrote: > You are correct. there is no electrical difference and certainly no > audible difference to be found via bi-wiring speakers. Because the > source is still identical, you are sending exactly the same signal to > both sets of binding posts. > > The double set of posts are actually there to satisfy those audiophiles > who believe that bi-amping will improve sound. I personally don't give > much credit to that method either. (Using a separate amp in your > receiver for each set of posts.) > > Unless you get very complex with separates and pre-amp crossovers and > such, you will still end up with the same signal at each set of posts. > The crossover in the speakers is still the one doing all the work to > separate the highs and lows between the drivers. > > Some will argue against me but tests performed in independent labs like > the Canadian National Research Center, never pick up an audible > difference. > > Sorry if I sound sound blatant. If you were here in front of me, I'd > be saying this in good humor. No sarcasm intended. I haven't heard an audible difference from bi-wiring, but I have definitely heard it from bi-amping, even without adding crossovers before the amp(s).
I've got a Rotel multi-channel power amp that lets me easily duplicate input signals and bridge (or unbridge) amp channels, without even adding any more interconnect cables. Starting with a stereo signal, in one case, four 60 watt channels were run bi-amped into Sonus Faber Grand Piano speakers (older version with bi-posts) via Kimber 8TC cables internally wired into separate high and low channels. In the other case, the amp channels were bridged into two channels at 120 watts, run through the same cable (with the amp end connectors stacked) into the same speakers. So in both cases, the speakers had 120 watts of power available each, ruling out simple power increase as an explanation for improvements with bi-amping. I ran these two set ups back and forth over a period of months. While it wasn't blind testing, much less double blind, the improvements using the bi-amp configuration were quite noticeable. The most obvious change was increased treble extension, although many aspects of the overall sound improved. The crossovers in the speakers still do all the work of separating highs and lows, but presumably the amps react differently to different loads when the woofer and tweeter are separated vs. together. I suspect that the effects of bi-amping are speaker (crossover) and amp dependent, but my own experience doesn't jibe with Murph's expectations. -- TiredLegs ------------------------------------------------------------------------ TiredLegs's Profile: http://forums.slimdevices.com/member.php?userid=6201 View this thread: http://forums.slimdevices.com/showthread.php?t=34318 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
