Owner's Manual

9-EN
SWITCH SETTINGS
NOTE:
• Before switching each Selector Switch, turn off
the power and insert a small screwdriver, etc.,
perpendicularly to the Switch.
Fig. 8
Input Channel Selector Switch
a) This switch setting is for selecting
either 2-channel or 4-channel input
mode. When set to “1/2”, signal will
be copied from CH-1/2 and sent to
CH-3/4, eliminating the need for
Y-adapters.
b) Setting this switch to “3/4” will keep
both inputs, CH-1/2 and CH-3/4
independent.
A 4-channel source is required for
this mode.
Input Gain Adjustment Control
Set the MRV-V500 input gain to the minimum
position. Using a dynamic CD as a source,
increase the head unit volume until the output
distorts. Then, reduce the volume 1 step (or until
the output is no longer distorted). Now, increase
the amplifier gain until the sound from the
speakers becomes distorted. Reduce the gain
slightly so the sound is no longer distorted to
achieve the optimum gain setting.
Crossover Frequency Adjustment Knob
Use this control to adjust the crossover
frequency between 50 and 400 Hz.
Crossover Mode Selector Switch
a) Set to the “OFF” position when the
amplifier will be used for driving
full range speakers or when using
an external electronic crossover.
The full frequency bandwidth will
be output to the speakers with no
high or low frequency attenuation.
b) Set to the “ON” position when the
amplifier is used to drive a tweeter/
midrange system. The frequencies
below the crossover point will be
attenuated at 12 dB/octave.
NOTE:
• In this case the maximum Bass EQ
boost level is reduced.
Input Channel Selector Switch (SUB W.)
a) When this switch is placed in the
“1+2+3+4” position, all the signals
are mixed and come out from the
SUB W. This setting provides signal
to the subwoofer channel when
only 4 channel input is available.
b) Setting this switch to “SUB W.” will
send the signal at the inputs of SUB
W. (L/R) to SUB W. of the MRV-V500.
Crossover Frequency Adjustment Knob (LP
FILTER)
Use this control to adjust the crossover
frequency between 50 to 400 Hz.
Bass EQ Adjustment Knob
Add a 50 Hz bass boost up to +12 dB to tune
your bass response.