AC INLET:
Each unit includes an AC power cord for the country that you live in. Attach the included AC power cord from
this AC inlet to a standard wall outlet or preferred power conditioner. Once plugged in, the unit is ready for
power up. If the amp does not power up, please check the fuse located inside this AC inlet. It can be
removed using a small flat head screwdriver. Please refer to the fuse rating above the AC inlet if you need
to replace the fuse for any reason.
TREBLE CONTROL:
A passive high end control that adjusts the amount of high frequencies of the preamp circuit. Set flat to start
and adjust to find the desired amount of high end..
SPEAKER OUTPUTS:
Each RB Series amp is equipped with dual 1/4” and dual Speak-on Speaker outputs jacks. You can use a
high quality 1/4” speaker cable or high quality speaker cable with locking Speak-on connectors and connect
to one or two external speaker cabinets. Keep in mind the output of your this bass amplifier depends on the
ohm rating of your cabinet/s. See the specification page for ohm ratings & power output.
CONTOUR CONTROL:
A secondary mid-range control that works in tandom with the MIDDLE control allowing you to sweep between
different mid-range frequencies. With the MIDDLE control set flat you will notice the Contour is extremely
subtle, but as you adjust the MIDDLE control off of flat the Contour control will become more active.
A lower Contour setting pin points the lower mid-range frequecies that the MIDDLE control will then cut or
boost. Set the Contour knob higher and the MIDDLE control will cut or boost the higher mid-range
frequencies.
MASTER LEVEL CONTROL:
The knob controls the overall volume and output of the amplifier. Use this control along with the Pre-Gain
level control to achieve the desired volume level. Experiment with using different Pre-Gain and Master settings
as you will notice some tonal differences by how you set and balance the Pre-Gain and Master controls.
Fuse
Fuse
FOOTSWITCH INPUT:
Each amp comes with a 2-button foot controller that activates the OVERDRIVE mode and turns the MUTE
function On and Off for on-stage tuning purposes. Simply plug the 1/4” foot controller cable into the
foot switch jack for remote switching of the OVERDRIVE and MUTE functions.
RB SERIES REAR PANEL FEATURES
Speak-on
Speak-on