McIntosh MC451, Руководство пользователя

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The MC451’s crossover tailors the output
frequency range of each amplifier section to the
attached loudspeaker. Set the CROSSOVER POINT
knob to the loudspeaker’s published crossover point.
Frequencies below the crossover point will be sent
to the solid state amplifier and frequencies above
will be sent to the vacuum tube amplifier.
CROSSOVER
(MONO MODE)
300
250 400
550 180
130 800
1k 100
CROSSOVER POINT
Hz
+1.2
-3
+3 -6
0
VACUUM TUBE LEVEL
dB
The VACUUM TUBE LEVEL knob allows gain
adjustments to be made to the vacuum tube ampli-
fier. The goal is to achieve a proper balance between
the low end of the loudspeaker and the mid/high
range.
The VACUUM TUBE LEVEL knob allows for
gain adjustments from -6dB to +3dB. The knob has
a center detent to mark the point of 0dB gain, but
adjustments are continuous from -6dB to 0dB and
0dB to +3dB.
Setting Up the Crossover