Diamond D3 Product Owners Manual page 8

Bass Boost
Acts like an equalizer with an adjustable gain fixed at 45 Hz. Adjust from left to right
clockwise to give as much as 18 dB of boost at that frequency. If there is a noticeable
lack of low end extension in the system, use this to boost the bass.
Caution:
If any unusual noise like popping or crackling, or unwanted distortion occurs
when adjusting the bass boost, immediately turn the boost down to avoid damaging your
speakers.
Crossover Mode
Switches electronic crossover between off, lowpass, or highpass modes. When in HP or
LP mode, the 12 dB/oct crossover is implemented at the frequency set on the frequency
knob.
Crossover Frequency
Adjustable left to right clockwise from 55 Hz up to 550 Hz.
D3 400.4
Bridging
Both sets of channels on the D3 400.4 amp are capable of being bridged to a 4 Ohm
mono output. Creation of the mono channel is accomplished by using the left channel
positive (+) output connection of a set of channels (front or rear) on the amplifier for the
speaker positive and the right channel negative (-) output connection of the same set of
channels on the amplifier for the speaker negative.
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