Legacy Audio Signature SE - Manual (Page 19)

1. Vertical Biamping
Vertical biamplification requires the dedication of a single stereo amplifier for the left
speaker, and another stereo amplifier for the right speaker. This configuration im-
proves channel separation and can improve imaging slightly. If your preamp does not
have two sets of left/right outputs, you will need a pair of Y-adapters or a signal split-
ter, such as a dual amp balancer, which will also allow adjustment of subwoofer/
satellite input levels.
2. Horizontal Biamping
Any two stereo amplifiers may be utilized in horizontal biamplification. Many audio-
philes prefer the "sweetness" of tubes on the satellite portion of the loudspeaker
while favoring the "control and weight" of solid state amplifiers on the subwoofer
section. The biggest drawback of such a marriage of amplification is that the two am-
plifiers may have different input sensitivities or output polarities. Differences in the
input sensitivities may be overcome by using a dual amp balancer. This unit allows in-
dependent balancing of the left subwoofer/satellite ratio and right subwoofer/satellite
ratio. It's also a good idea to check the owner's manuals to establish if the amplifiers
are inverting or non-inverting. If the two amplifiers are of opposite polarity, then you
should reverse the polarity at the inputs of
Speaker Connections
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