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52 Tact Audio
Vertical bi-amplification
In this configuration M/S-2150 X amplifier labeled Amp#1 is connected to the main
left and subwoofer left channel. Left channel of Amp#1 is connected to the left
subwoofer and Amp#1 right channel is connected to the left main loudspeaker. M/
S-2150 X amplifier labeled Amp#2 is connected to the main right and subwoofer
right channels. Left channel of Amp#2 is connected to the right subwoofer and
right channel of Amp#2 is connected to the right main loudspeaker. Connection
diagrams are shown on pages 16.
Note that digital source (usually processor or transport output) is connected to
Amp#1 coax/SPDIF digital input and Amp#1 digital output is connected to Amp#2
coax digital output. In this way both amplifiers get the same Left and Right
channel audio signal. In this configuration Amp#1 is set to process only left
channel audio signal and Amp#2 is set to process only right channel audio signal.
Amp#1 and Amp#2 InOut menus should be set as follows:
Initially DELAY and LEVEL menu options for both amplifiers should be set to 0.00
msec and 0.0 dB respectively.
The next step is crossover filter selection for both subwoofers and main channels.
The crossover filter selection consists of setting subwoofer low-pass filter cutoff
frequency and filter order (filter slope), and of setting main channel high-pass cutoff
frequency and filter order (filter slope). Your loudspeaker manufacturer usually
recommends these parameters. In this example we assume that crossover
frequency is 100 Hz and the filter order is something we want to experiment with.
Each M/S-2150 X amplifier supports up to 9 crossover presets. Here we program
preset 1 (CRO- 1) as shown on the next page.
OUTPUT: L R
SOURCE: L L *
OUTPUT: L R
SOURCE: R R *
Example 2
Amp#1 InOut menu
Amp#2 InOut menu
Crossover Package M/S-2150 X