Luminal Booster Ultra
Darkglass Comes Clean

Introducing the next evolution in clean bass tone: The Luminal Booster Ultra.
Our latest creation seamlessly blends the undeniably lavish tone of the Harmonic Booster with a versatile Multiband Compressor, delivering a pristine, controlled signal like never before.
Featuring a gain reduction meter for precise monitoring and a 6-band EQ for unparalleled tonal flexibility, your clean sound is now fully under your command. And to top it off, you can load up to 7 custom Impulse Responses via USB, the ultimate
tone-shaping power is right at your fingertips.

Top Panel Features

Blend: Blends between clean and compressed signal
Comp: Adjusts the amount of compression applied
Filter: Adjustable lowpass filter for the compressed signal
Gain: Adjusts the level of the compressor after the blend
control
Boost: Flat -20dB to +20dB cut or boost.
Character: Allows blending in the perfect amount of the
tone-shaping circuitry.
Mid gain: +-20dB @ the frequency selected by “Mid
Frequency”.
Mid Frequency: Mid frequency from 250Hz to 2.5kHz.

Sliders
Master: +-12 dB. Sets the overall volume of the unit.
Low shelf: +-12 dB @ 80 Hz.
250 Hz: +-12dB.
500 Hz: +-12dB.
1,5 kHz: +-12dB.
3 kHz: +-12dB.
High shelf: +-12 dB @ 5 kHz.

Connectors
Input: 1/4" connector for the instrument.
Aux In: 3.5mm stereo input to practice with backing tracks.
9VDC: Center negative, regulated 9VDC only.
Headphone Output: Internal stereo headphone amplifier
capable of driving a minimum load of 16 ohms from the 3.5mm
stereo jack.
Output: 1/4" connector for the amplifier or next effect in the
chain.
Direct Output: Balanced output via XLR connector. Cabinet
simulation can be switched with the Cab Sim push-button.
USB C: Connect to Darkglass Suite (PC/Mac) to load impulse
responses to the pedal.
Ground lift: Disconnects the signal ground on the Direct
Output to break any ground loops.
Cab Sim: 7 Cab Sim slots for the XLR can be accessed by
pushing on the Character knob.