User guide
12
Operation
Remote Only Functions
Load (50, 100, 200, 500, 1K, 47K, Custom): Select the appropriate load to
match the resistance of your phono cartridge. If not set with a specic value
when manufactured, the default value for the Custom setting is 47K (note
that the value for the custom setting can be adjusted by Audio Research or
an authorized Audio Research service center).
Input 1/Input 2: Selects the input for playback.
Lo Gain/Hi Gain: Selects the amount of gain for playback. Low Gain offers
51 dB of gain, and is intended for cartidges with high output, usually above
0.5 mV. High Gain offers 74 dB of gain is intended for cartridges below
0.5mV.
Display Down/Display Up (DSP DN/DSP UP): Decreases/increases
display intensity, offering 6 levels of brightness and display ‘off’. In display
‘off’ mode the display will illuminate for 10 seconds when any button (except
Power on/off) is selected, allowing for control function navigation.
Equalization Curves (RIAA, COLUMBIA, DECCA): Select between
different equalization curves for playback. RIAA equaliztion, introduced
in 1954, is the standard with which most records have been produced.
During the early era of stereo records, both Columbia and Decca Studios
used curves which varied from the RIAA curve. Check the record sleeve for
information which may indicate whether your record was recorded using
the RIAA curve.
Hours: When pressed, displays number of hours vacuum tubes have been
in service.
Note: After replacing tubes, this function should be reset to ‘0’. See further
instructions under ‘Hours Meter’ in the section ‘Interactive Touch Screen
Operation’ for details.