Dan D'Agostino MasterPower 3+ Посібник користувача - Сторінка 11
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Bridge mode
Bridge mode combines two channels to increase their total output to
1,200 watts into 8 ohms. With the Master Power 3+, channels 2 and 3 are
bridged. With the Master Power 2+, channels 1 and 2 are bridged. To put
the amp in bridge mode, flip the bottom two toggle switches to the left. In
this mode, the red (positive) connectors will carry the speaker signal, and
the black (negative) connectors will be inactive. On the Master Power 3+,
the channel 2 red connector will now carry the positive signal, and the
channel 3 red connector will carry the negative signal. On the Master
Power 2+, the channel 1 red connector will now carry the positive signal,
and the channel 2 red connector will carry the negative signal.
Crossover Options
The Master Power amplifiers include defeatable high- and low-pass crossovers for each
channel. You can use these if you have a subwoofer; typically, they will deliver better
results than going through the crossover built into the subwoofer. If you use these in
conjunction with a surround-sound processor, make sure the channels driving the Master
Power amplifier are set to "Large" so the processor's internal crossover will be bypassed.
The crossover filters built into the Master Power amplifiers are fixed at 80
Hz, -18 dB/octave, which is the best response for most home theater and
stereo systems.
To use the Master Power amplifier's internal crossovers, first flip all three
top toggle switches to the right, as viewed from the back of the amplifier.
The crossover filters are controlled by the three slider switches on the bottom half of the
switch panel. On the Master Power 3+, the top slider is channel 1, the middle slider is
channel 2 and the bottom slider is channel 3. On the Master Power 2+, the top slider is
channel 1, the bottom slider is channel 2 and the middle slider is inactive.
High-pass mode
Setting the slider to the left (viewed from the back of the amp) puts the
channel in high-pass mode. In this channel, signals below 80 Hz will be
filtered out. This is the one to use to feed your main speakers.
Low-pass mode
Setting the slider to the right (viewed from the back of the amp) puts the
channel in low-pass mode. In this channel, signals above 80 Hz will be
filtered out. This is the one to use to feed your passive (non-powered)
subwoofer.