MB QUART QAA1000 User Manual download pdf (Page 9)

INST

ALLATION

INPUT LEVEL SENSITIVITY

The input level sensitivity for the MB Quart Q Series amplifiers is 200mV to 20V. This allows a wide range of

input signal compatibility from traditional source units to tomorrow's switching supply-based devices. When

the input sensitivity switch is set to “LOW” the range of the inputs is 200mV to 2.0 Volts, when in “HIGH”, the

RCA will accept 2.0 Volts to 20 volts! Please be sure to closely follow the instructions in the gain setting

section that advises to initially use the “HIGH” input range before trying “LOW” as this may damage the

sensitive electronics on the input of the amplifier. If your source unit has only speaker level outputs for

connection, be aware that typical source units have a balanced output (sometimes known as ‘BTL’) with a

reference voltage of 6.0V DC. The input to the MB Quart amplifier references ground so connecting the

speaker level leads to the RCA may cause damage to the source unit and/or amplifier.

CAUTION: Do not attempt to connect the source units speaker leads directly to the RCA connections

of this amplifier, as damage to the source unit and/or the amplifier may result.

° Speaker outputs are wired in

parallel internally.

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MB QUART QAA1000 User Manual Page 9