Chase Bliss PREAMP MKII — MIDI Editor & CC Reference
Control the Chase Bliss PREAMP MKII from your browser — MIDI control reference, interactive editor, and AI-generated presets. Free, no install.
Explore the PREAMP MKII controls in your browser and connect compatible MIDI hardware to send settings to your pedal. The reference below shows the controls mapped in Nitelite; available functions depend on the pedal and firmware. The default MIDI channel in Nitelite is 2. Browser MIDI control works in Chrome, Edge, Opera, or Brave — no install required.
Knobs
Control
MIDI CC
Description
VOLUME
CC 14
Master volume level (motorized fader)
TREBLE
CC 15
Treble EQ control (motorized fader)
MIDS
CC 16
Active parametric midrange boost/cut up to 18dB. Halfway = flat.
FREQ
CC 17
Midrange frequency selector. ~150Hz to ~4kHz.
BASS
CC 18
Bass EQ control (motorized fader)
GAIN
CC 19
Gain / drive amount (motorized fader)
Switches
Switch
MIDI CC
Positions
MIDS
CC 23
OFF / PRE / POST
DIODE
CC 25
OFF / SILICON / GERM
FUZZ
CC 26
OFF / OPEN / GATED
DIP Switches — N/A
Control
MIDI CC
Description
N/A
CC 61
Preamp MKII has no DIP switches
N/A
CC 62
Preamp MKII has no DIP switches
N/A
CC 63
Preamp MKII has no DIP switches
N/A
CC 64
Preamp MKII has no DIP switches
N/A
CC 65
Preamp MKII has no DIP switches
N/A
CC 66
Preamp MKII has no DIP switches
N/A
CC 67
Preamp MKII has no DIP switches
N/A
CC 68
Preamp MKII has no DIP switches
DIP Switches — N/A
Control
MIDI CC
Description
N/A
CC 71
Preamp MKII has no DIP switches
N/A
CC 72
Preamp MKII has no DIP switches
N/A
CC 73
Preamp MKII has no DIP switches
N/A
CC 74
Preamp MKII has no DIP switches
N/A
CC 75
Preamp MKII has no DIP switches
N/A
CC 76
Preamp MKII has no DIP switches
N/A
CC 77
Preamp MKII has no DIP switches
N/A
CC 78
Preamp MKII has no DIP switches
Footswitches
BYPASS — CC 102
PRESET — CC 102
Special MIDI Functions
Expression — CC 100
JUMP — CC 22. Jump circuit mode. Selects between Off, 0dB clean boost, or +5dB jump. Chase Bliss encoding: 1=Off, 2=0dB, 3=5dB.
Q — CC 24. Midrange Q (bandwidth) setting for the parametric mid circuit. Chase Bliss encoding: 1=Low, 2=Mid, 3=High.
Hardware Presets
PREAMP MKII has 30 hardware preset slots, recalled using MIDI Program Change. Nitelite supports saving to hardware over MIDI.