bigfool1956;291994 Wrote: > I have four Alecto monoblocks driving my speakers, two per speaker. > Adding the second pair of amps was a significant upgrade in terms of > bass control and depth. It also made an (admittedly lesser) improvement > to the treble, removing a layer of grain. > > When using stereo amps, it is normal to use one amp for the two bass > sections of the speakers, and one for the two treble sections > (horizontal). HOWEVER, although many people don't try this, it is > actually better to use one stereo amp for the left speaker, and the > other one for the right speaker. > > This way the power supply is only dealing with a single speaker's worth > of bass delivery, and any crosstalk is kept within the same speaker. > > Of course, if you decide to go the bi-amping route, then it is trivial > to try out both arrangements. > > On the question of whether bi-amping is an improvement, per se. That is > a somewhat different issue. I found that when I had the opportunity to > use a single pair of Bryston 600W monoblocks (the 7B's if I remember > correctly), then I found them to be a considerable improvement over the > two pairs of Alectos. > > In other words, bi-amping is not a universal panacea. It can be a cost > effective way of upgrading an existing system, if you simply double up > on you existing power amp(s). > > I would dearly love to compare lower powered bi-amped Brystons with a > single pair of the 7Bs. > > Active speakers, where each individual frequency range in a speaker is > driven with a different amp, and where the crossover frequencies are > controlled electronically prior to the power amps are a very different > kettle of fish. > > Just to be clear, although many people view active speakers as > containing the crossover electronics, and amps within the enclosure, > widespread use of this topology is quite recent. The term active > speakers also applies to the topology that has the crossover and all > the amps in your equipment rack, with multiple speaker cables running > to each speaker. This is not what is referred to in common audio > parlance as bi-amping (sorry Pat).
This is malarky. Again physics is the issue. The benefit of bi-amping is derived from the fact that each amplifier has a fixed range to reproduce. The net effect is a result of Ohm's law. Unlike evolution, this is not a theory. If you are using a single amp on each channel, you will experience benefits only because your amp was not capable of running two channels simultaneously. Active speakers are a different issue entirely. Another whole point of bi-amping is the ELIMINATION of passive crossovers. Any input Mr. Farrell? -- pski ------------------------------------------------------------------------ pski's Profile: http://forums.slimdevices.com/member.php?userid=15574 View this thread: http://forums.slimdevices.com/showthread.php?t=46354 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
