Input Use this jack to connect your instrument via a standard ¼” mono cable.
Passive/Active Use this push-button switch to change from passive to active mode. If your bass is active it can have a hotter signal making the amp to distort early (feel free to use if such additional distortion is desired).
Microtubes Use this push button to turn on or off the Microtubes Engine to add natural compression, organic harmonic enhancement, and saturation ranging from mild overdrive to high gain bass rage. The Microtubes Engine operates before the clean section (you can therefore use the 4 Band Active EQ for additional tone shaping in addition to the Tone knob described below).
Compression This knob controls the amount of dynamic compression added to the Microtubes Engine. The make up gain is adjusted automatically. The compression can be turn off or assigned using the Darkglass Suite.
Drive This knob controls the amount of distortion that the Microtubes Engine will deliver. It will change from a soft warm overdrive to a massive modern distortion sound.
Tone This knob controls the high harmonic content of the Microtubes Engine via a variable low pass filter: crank it up for additional attack and definition or dim it down for a smoother sound, especially handy if already running bright clean EQ setting or cabinets with tweeters.
Level Use this knob to control Microtubes Engine’s output volume.
Blend Use this knob to mix between the Clean signal and the Distortion signal (Microtubes Engine).
B3K/VMT This push-button switch selects between two overdrive voicings: B3K mode will deliver an aggressive, percussive sound while the VMT will bring up the mids for a warmer, more neutral character.
Gain Use this knob to change the volume of the signal before the Active 4 Band EQ. You can set it low for ensuring the cleanest operation possible or set it higher for more aggressive growl.
Bass +-12dB at 80Hz. Use this knob to change the low content of the signal.
Mids +-12dB at 250, 500,1.5K and 3Khz. This graphic eq control the mid content of the signal.
Treble +-12dB at 5kHz. Use this knob to change the high content of the signal.