RB SERIES FRONT PANEL FEATURES
INPUT/-10dB CUT:
The main guitar INPUT for the amplifier. Using a high quality instrument cable, simply connect your
guitar to this 1/4” input jack. The -10dB switch can be used with basses that use an on-board preamp
with active tone controls. You can use the -!0dB cut switch to prevent clipping at the first input stage
when using active basses or passive basses with hotter pickups. You will not need to the -10dB cut
when using basses with passive tone controls.
OVERDRIVE SECTION:
The footswitch able OVERDRIVE circuit can be used to add a little or insane amount of distortion to your
bass tone. You can activate the Overdrive using the front panel switch or the included Foot controller. Use
the LO CUT switch to remove sub low frequencies if the low end is too excessive. Now, adjust the
Overdrive level to the desired distortion then use the LEVEL Control to adjust the volume level. Use the
Overdrive and Pre Gain Level controls so that your Overdrive and Clean bass tones are similar volumes.
COMPRESSION/MUTE/PRE-GAIN CONTROLS:
Each RB Series amp is equipped with a footswitch able MUTE circuit for silent tuning. The Mute can be
activated by using either the front panel button or included footswitch. The RB Series were also designed
using “THAT” Compression chips, providing professional studio quality compression to your bass tone,
simply press the “Comp On” switch to activate. The Compression control works in conjunction with the Pre-
Gain level, so you will notice the Compression is more or less active depending on where the Pre-Gain level
is set. If the Pre-Gain is lower the Compression level is lower, and as you increase the Pre Gain level you
will also increase the Compression. The Pre-Gain level controls the gain level before the EQ section, so it
can be used to add some grit or additional attack when set higher.
