Darkglass Electronics Luminal Booster Ultra

Combining the rich tone of the Harmonic Booster with the precision of an adjustable frequency range parallel compression, this pedal gives you unmatched control. With a 6-band EQ, gain reduction meter, and the option to load 7 custom Impulse Responses via USB, it delivers ultimate tonal flexibility for bass players of any genre. Pure, powerful, and precise—your clean tone, perfected.

Luminal Booster Ultra Modes
The Luminal Booster Ultra offers an extra layer of versatility, allowing the user to change the order of the Compression and Harmonic Booster engines by long-pressing the left footswitch, you can enable either the blue or red mode.

Darkglass Suite
Utilizing the desktop version of the Darkglass Suite allows you to load one of the available impulses responses of our library or add you custom / third party impulses to use with your pedal. In addition you can control the headphones level output.

Cabsims

• Analog Cabinet

• Black and White 410

• Cali 212

• Cali 410 NEO

• Cali Combo 212

• Dave 410

• DG112N

• DG212N

• DG410N

• DG412ES

• DG810ES

• Fashionista 412

• Forrester 810

• Fruity 115

• Fruity 212

• Fruity 410

• Fruity 810

• Garden118

• Garden 410

• London 412

• London 412 Vintage

• Modern 212

• Modern 412

• Modern 115 Powerplant

• Modern 210 Powerplant

• Modern 410 Powerplant

• Modern 810 Powerplant

• Mountainino 610

• Nolly 810

• Panzer 412

• Peggy 115

• Peggy 210

• Peggy 410

• Peggy 810

• Peggy 810 Vintage

• Snakeskin

• Stockman 212

• Stockman 410

• Stockman 810

• Swirl 115

• Swirl 410

• Swirl 810

• Topper

Controls

Filter: Adjustable lowpass filter for the compressed signal (150 Hz to 20 kHz)
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

Input & Outputs

Input: Connect your instrument or output from your pedal board to the ¼” mono jack.

Aux In: This 3.5mm stereo input allows you to practice with backing tracks from e.g. your smartphone or laptop. Auxiliary input can only be used with the headphone output.

The pedal does not control the level, it must be set from your audio source. Remember to always first set the level low before connecting anything to the aux in!.

Headphone Output: Luminal Booster Ultra has an internal stereo headphone amplifier capable of driving a minimum load of 16 ohms from the 3.5mm stereo jack. Use the Master volume control to adjust the level.

9V DC: Only use a regulated 9V DC adapter with a center-negative plug

Output: Connect from the ¼” Output jack to the input of your amplifier or another effects pedal.

Direct Output: Balanced XLR output for connecting the pedal to a microphone preamp, PA system etc.

Ground lift: Disconnects the signal ground on the Direct Output to break any ground loops. Set this switch to either position that has less noise. The switch does not affect the ¼” output.

Cab Sim: Select between 7 Cab Sim slots for the XLR can be accessed by pushing on the Character knob.

USB: A USB C connector allows you to connect the pedal to PC/Mac to load cabinet simulation impulse responses to the pedal and control various other settings.

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.

For more information, click here to visit the manufacturers website.