Vertical bi-amping with identical amps.👍 Yes vertical bi-amping is the way if the amps are identical.
Or horizontal bi-amp a good class-A or A/B or tube on the mids and highs and a class-d on the bass.
Cheers George
Bi-amping Rules
I wasn't sure if this question belongs in the amp or the speaker section but I figured I'll post it here. Those of you who have bi-amped your speakers, what's the general rule for deciding which amplifiers are better for low frequency vs. the high frequency drivers. I recognize an accurate answer will depend on the particular speakers and amp combinations but I'm looking for general rules of thumb from personal experiences and not application specific recommendations. For the sake of the argument, let's assume the amps are different but the gains on both amps can be adjusted if that matters. Thanks.
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Since 80% of the power/voltage is in the bass, AND speakers tend to have an impedance dip in the 100-150 Hz range you want the bigger, stiffer amp in the bass. However, since most amps are fixed gain (26 dB) if you mismatch by a lot, say, 200 W bass, 10 W tweeter/midrange, you can still overload the top end amp with too much required voltage swing, you'll have clipping anyway. So try to keep your amp power ratio at most 2:1 |
The reason for this is that the whole shared power supply of one stereo amp can be used by the one bass driver of one channel on transients and will make for better transients and bass.Vertical bi-amping with identical amps.👍 Yes vertical bi-amping is the way if the amps are identical. This is why vertical bi-amping is the very best, but only with identical amps. (unless the stereo amp is "true dual mono" with "two separate power transformers".) http://www.classicspeakerpages.net/IP.Board/uploads/monthly_2016_03/7_Vertical_Bi-Amp.jpg.ba97802ae9... And if bi-amping with different amps it has to be horizontal bi-amping, and you’ll need a volume control on the amp with the highest gain, (a passive like the $39 Shitt Sys will do) http://www.av2day.com/wp-content/uploads/2014/05/biamp1.jpg Cheers George |
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