Tweet
I have compared music in a normal and bi-amp setup, with the 703 and a Rotel 1075 (5x 120W), using the surround channels to bi-amp, and the difference is awesome! I know it's only passive bi-amping, and the 703 are not that difficult to drive, so I never thought to try it...
After a first experience a few days ago with the 704 and a Denon receiver in another room, where bi-amping using spare surround channels "brought back the music" to an otherwise non-musical system, I decided to try it on my audio system, 3x703 and Sony SCD and Rotel 1068/1075.
After several A/B comparisons, I finally understood: bi-amping brings high frequency sounds back into the open (not drowned out by low frequencies), the bass drums hit more sharply, the mid-range is clearer, vocals stand out instead of being mixed with other sounds. My 703 felt "taller" and "leaner", its like seeing clear water instead of slightly muddy water. I feel the amp is preventing low and high frequencies from interfering with each other. Going back to normal setup made me want to "swallow to clear my ears" to hear the clarity again. The jump in clarity is comparable to the jump when upgrading my Denon universal player to the Sony sacd.
So I have left the L/R channels bi-amped, the center 703 in normal setup, and the 2 surround speakes disconnected. Surround sound can wait, clarity is what I want for now.
Ideally, I need a 2nd Rotel 1075 to bi-amp all channels equivalently, but just before christmas vacation, my priorities are elsewhere unfortunately!
I don't think a more powerful amp (like the 1095) would bring such a difference, I am using it well below it's rated capacity: I think the difference is caused by the separate amplification and the feedback dampening in the amp, and to a lesser extent the cables (nothing special about my cables, but I never tried by-wiring alone).
It's just like B&W claims http://www.bwspeakers.com/index.cfm/...tion/local.faq
Christophe
After a first experience a few days ago with the 704 and a Denon receiver in another room, where bi-amping using spare surround channels "brought back the music" to an otherwise non-musical system, I decided to try it on my audio system, 3x703 and Sony SCD and Rotel 1068/1075.
After several A/B comparisons, I finally understood: bi-amping brings high frequency sounds back into the open (not drowned out by low frequencies), the bass drums hit more sharply, the mid-range is clearer, vocals stand out instead of being mixed with other sounds. My 703 felt "taller" and "leaner", its like seeing clear water instead of slightly muddy water. I feel the amp is preventing low and high frequencies from interfering with each other. Going back to normal setup made me want to "swallow to clear my ears" to hear the clarity again. The jump in clarity is comparable to the jump when upgrading my Denon universal player to the Sony sacd.
So I have left the L/R channels bi-amped, the center 703 in normal setup, and the 2 surround speakes disconnected. Surround sound can wait, clarity is what I want for now.
Ideally, I need a 2nd Rotel 1075 to bi-amp all channels equivalently, but just before christmas vacation, my priorities are elsewhere unfortunately!
I don't think a more powerful amp (like the 1095) would bring such a difference, I am using it well below it's rated capacity: I think the difference is caused by the separate amplification and the feedback dampening in the amp, and to a lesser extent the cables (nothing special about my cables, but I never tried by-wiring alone).
It's just like B&W claims http://www.bwspeakers.com/index.cfm/...tion/local.faq
Christophe
Comment