3
NOTE: To use either the Stageboard or MIDI to operate the BassBase, please ensure that all switches
on the front panel of the unit itself are OUT (not depressed). Alternatively, to operate the BassBase
using either the front panel switches or MIDI, ensure the Stageboard is either unplugged or completely
switched off (that is, no Stageboard LEDs are on).
Once the MSM 1 MIDI Module has been installed, you can switch EQ sections and activate the FX loop via
MIDI commands. Using MIDI to handle the simultaneous switching of the BassBase 600 and your FX
processor leaves you free to concentrate on your music.
Please refer to the MSM 1 Instruction Manual for detailed information on installation and MIDI operation.
4.0 OPERATING THE BASSBASE 600
4.1 THE INPUT SECTION AND BASIC EQ SECTION
The response of the BassBase 600 tube preamp stage depends in large part on your instrument, its pickups
and signal level, and your playing style. The -10 dB and GAIN controls simplify and significantly expedite your
search for the proper level. Although your ears are the ultimate authority, the PREAMP LEDs are also great
visual reference tools for this task.
To adjust the gain properly, turn your instrument's volume all the way up and ‘spank the plank’ hard by
slapping or really digging in with your pick. For the ideal setting, the RED CLIP LED will flash briefly on peaks
only. If the signal is too hot, press the -10 dB button to damp it.
NOTE: The RED CLIP LED illuminates to indicate distortion in the BassBase 600 preamp caused by a
saturated input or incorrect FX processor levels. It will not show distortion caused by your bass, such
as an active instrument's low batteries.
The yellow TUBE SATURATION LED indicates the amp’s tube stage is entering the mellow overdrive zone.
You will now begin to hear that utterly desirable tube growl and typical tube compression. For ultraclean
sounds, only the SIGNAL LED should illuminate. If you cannot achieve tube saturation even with the gain
wide open, deactivate the -10 dB button (not depressed).
