Darkglass Luminal Boost Ultra Bass Preamp Pedal

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Elevate your bass tone with the Darkglass Electronics Luminal Booster Ultra, available at Haggerty's Music. This powerful pedal combines the harmonic richness of the iconic Harmonic Booster with the precision of adjustable frequency range parallel compression, giving you unmatched control over your sound. With a 6-band EQ for detailed tonal shaping, a gain reduction meter for real-time compression feedback, and the ability to load up to 7 custom Impulse Responses (IRs) via USB, this pedal delivers ultimate flexibility for bassists of any style. Whether you're crafting grooves, dialing in crisp slap tones, or exploring genre-blending soundscapes, the Luminal Booster Ultra perfects your clean tone with clarity, power, and versatility.

Features/Specs

Filter

• Adjustable lowpass filter for the compressed signal

Blend

• Blends between clean and compressed signal

Comp

• Adjusts the amount of compression applied

Level

• Adjusts the level of the compressor after the blend control

Boost

• +-20dB boost or cut

Character

• Allows blending in the perfect amount of the tone-shaping circuitry. Press to select between 7 IRs

Mid Gain

• +-20dB @ the frequency selected by “Mid Frequency”.

Mid Frequency

• Mid frequency from 250Hz to 2.5kHz.

Master

• +-12 dB. Sets the overall volume of the unit.

Bass

• Low shelf +-13dB @ 80 Hz

Mid Bands

• +-13dB @ 250 Hz, 500 Hz, 1.5 kHz, 3 kHz

Treble

• High shelf +-13dB @ 5 kHz

Dimensions

• Width: 125 mm / 5″
• Length: 96 mm/ 3¾″
• Height: 57 mm / 2¼″
• Weight: 430 g / 0.95 lb

Warning: When the pedal is on bypass the master volume does not affect the headphone volume. In this case the total volume is adjustable in Darkglass Suite. With sensitive headphones, the bypass volume can be very loud if not adjusted. The Luminal Booster Ultra has a current draw of 400mA. Only use a regulated 9V DC adapter with a center-negative plug. Unregulated power supplies and/or higher voltages may result in suboptimal noise performance and even damage your unit, voiding the warranty.