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Front Panel
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ACTIVE/PASSIVE PICKUP Inputs
1
These 1/4" inputs are included so you can choose the appropriate setting for your instrument. The gain structure of the
amplifier is modified to accommodate the outputs of different pickup configurations.
GAIN
2
This knob controls input level of the instrument.
TT BOOST SWITCH
3
®
This TransTube
crunch circuit is designed so that the volume of the amp will not change when the boost is switched
on, but the distortion level will increase depending on the level of the GAIN knob. For best results, first set the distortion
amount by adjusting the GAIN. Next, set the desired volume using the VOLUME knob. At this point, the clean volume will
match if the TT BOOST is turned off.
BASS
4
This knob provides a shelving tone control for low frequencies and provides cut/boost of +/-15 dB. The center point is
flat. The center frequency is 50 Hz. -3 dB shelf corner frequency is 100Hz.
PUNCH
5
This switch engages a boost of 6dB at 100Hz, which greatly enhances the low-end presence of the bass guitar.
MIDDLE
6
This knob provides a peaking tone control for Mid frequencies and cut/boost of +/-15dB. The center point is flat.
MID SHIFT
7
This switch controls the center frequency of the MIDDLE knob. When the switch is OUT, the middle frequency is 600Hz.
The middle frequency is 250Hz when the switch is pushed IN.
TREBLE
8
This knob provides a shelving tone control for high frequencies and cut/boost of +/-15dB. The center point is flat and the
frequency is 8 KHz. -3dB; the shelf corner frequency is 5 KHz.
BRIGHT SWITCH
9
This button provides a 10 dB boost to frequencies above 1KHz. To activate, depress the switch to its "IN" position.
VOLUME
10
This knob controls the overall volume of the amplifier.
PSYCHO-ACOUSTICS EFFECT SWITCH
11
The human ear does not hear low frequencies as well as higher frequencies. This means that as bass goes lower, more
and more power is required. The MAX
generating harmonics based on the notes, and then blending the harmonics with the original note, making the lows seem
louder and tighter without eating up excess power amp headroom.
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®
Psycho-Acoustics effect solves this problem by identifying extremely low notes,
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