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NOTES ON
BI-AMPING
(
CONTD.
)
9
Bi-
A
mping
True bi-amping can also be accomplished with an
external electronic crossover. See Figure 10.
Even greater dynamics can be realized with
bandwidth-limited amplifiers. If your decide to bi-
amp, please follow the recommendations below:
1) Use at least a 12dB/octave high pass filter no
higher than 1500 Hz on the tweeters.
2) Use at least a 12dB/octave low pass filter no
lower than 6000 Hz on the woofers.
This "staggered" active arrangement allows one
full octave of bandwidth between the amp's active
range and the speaker's passive range. This
stagger allows the purpose designed passive
network to operate as intended. You will gain the
benefit of dedicated amplifiers and retain the
sound quality designed into the passive crossover.
Figure 10 Active/Passive
Bi-Amp