Top Panel
1. Level Control – controls the overall loudness of the amplifier.
2. Bass Control – provides 10dB of boost or cut at 87Hz.
3. Midrange Control – provides 10dB of boost or cut at 645Hz.
4. Treble Control – provides 8.5dB of boost or cut at 4.4kHz.
5. Presence Control – provides 6.5dB of boost or cut at 11.6kHz
6. Headphone Level Control – controls the loudness of the headphones only.
Adjust after setting the overall loudness with the Level control.
7. Pre-Post EQ push-button – low position places the feed to the headphone
amplifier and the balanced line amplifier post EQ. High position is pre-EQ. Note
that pre/post EQ selection does not affect the signal to the speaker output jack.
8. Cabinet Simulation push-button – low position places the feed to the
headphone amplifier and the balanced line amplifier post cabinet simulation. High
position is pre-cabinet simulation. Note that cabinet simulation is not present at
the speaker output jack.
9. Power Indicator – lights when AC power is present and the power switch is
turned on.
10. Power Amp Clip/Over-Current Indicator – this is a dual-purpose indicator.
The primary function is to warn when the power amp is 1dB away from clipping.
The secondary function is to indicate when an over-current condition exists on
the speaker output jack, such as a shorted speaker cable. See detailed explanation
under “Protection Features”.
11. Pre-Amp Clip/Status Indicator – this is also a dual-purpose indicator. The
primary function is to indicate when any portion of the preamp is within 6dB
of clipping. See more information under “Preparing for use”. The secondary
function is to indicate the status of the power supply/power amp module. When lit
continuously, the module has shut itself down due to one or more fault conditions.
See detailed explanation under “Protection Features”.
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Panel Layouts, Control Functions and Input/Output Jacks
with motors such as compressors, refrigerators or air conditioners as this can
cause high levels of unwanted noise in your sound or dips in power as motors start up.
SET UP: Place the unit on a firm, level surface. Do not plug or unplug an instrument
or speaker while the amplifier is turned on.
HEAT AND VENTILATION: Make sure to allow space around the sides. Back and
top for air circulation. Avoid use in extremely hot locations with direct exposure to
sunlight or placement near heating equipment. Avoid use in moist or high humidity
areas. Do not block fan opening or vent holes on the side. Allow for adequate air
flow and do not place coats or blankets over the amplifier.
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