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アンプ Dan D'Agostino MasterPower 3+のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Dan D'Agostino MasterPower 3+ 18 ページ。 Power amplifiers

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.