The Deep Bass Nine (DB9) is a nineteen inch, single unit, MIDI-controlled monophonic
analogue synthesizer. It is a voltage controlled synthesiser using one volt per octave, with
an excellent 24dB voltage controlled resonant filter. The filter is an exceptional resonant
filter design which is very agressive and emulates the classic "acid" dance music bass
sound.

It has five main functions:
 

       1              a MIDI controlled bass synthesizer;
       2              an analogue controlled bass synthesizer;
       3              a MIDI to VC converter;
       4              a MIDI controlled filter gate and
       5              an analogue controlled filter gate.

These functions are explained in the application notes (apendix A) at the back of this
manual.

The front panel controls give you the ability to adjust various parameters of the sound in
real-time. These controls are tailored to produce both deep and cutting bass sounds quick-
ly and easily. You can select the basic waveform, the tuning of the oscillator, cut-off fre-
quency, resonance, envelope modulation, decay, accent, volume and the MIDI channel of
the unit.

You can adjust some of the settings of the synthesiser over MIDI. The cut-off frequency
can be altered using the modulation wheel on a MIDI keyboard (MIDI controller 1). If
you play notes with a MIDI velocity of 65 or greater, the accent knob will change the
quality of the sound. To access the glide function then use MIDI portamento on / off
command - controller 65 on or off.

Demo Mode

To access the demo mode on the Deep Bass Nine turn the unit on with the MIDI chan-
nel knob set to sixteen. The Deep Bass Nine will then play the demo tune continually
until you change the MIDI Channel. (Once the demo has stopped you can return it to
channel sixteen if you wish to play the DB9 on channel sixteen.)

Depeche Mode

A synthesizer band from the early eighties.