One Control BJF Series Crimson Red Bass Preamp Pedal

Retailing in the region of £84.99

On the menu for January 2026 are the One Control Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the One Control Guitar Pedals today.


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Description

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On the menu for January 2026 are the One Control Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the One Control Guitar Pedals today.

One Control's Crimson Red Bass Preamp was designed to reproduce the iconic old-school '60s and '70s electric bass sound by giving the bottom-end a boost at an extremely low distortion level. If you love smooth, rounded tones akin to what you can create with a "flatwound"-strung bass — the Crimson Red is a great shout!

One Control 'BJF Series' Pedals

One Control are well-known for their pedal switchers and pedalboard management devices, but they also make their own effects — the BJF Series! These mini pedals are designed by Björn Juhl, a legend within the stompbox sphere who's highly regarded for his work with Mad Professor, Barefoot FX and his own company, BJFE. These stompboxes not only sound amazing, but save precious pedalboard real-estate too!

Björn Juhl on the Crimson Red Bass Preamp:

"The Crimson Red Bass Preamp allows you to relive the sounds of bass amplification before extreme clarity, thanks to 400W amps and tweeters, was a thing in the bass world. The unit reproduces the sound similar to a single 15" or 18" setup."

Crimson Red allows you to control 3 main characteristics:

  • Volume: Output volume
  • Brilliance: Bandwidth control. At maximum, treble can pass. Whereas at the most counter-clockwise position, only bass is amplified.
  • Gain: Boost control.

"The Crimson Red Bass Preamp can be used with modern bass amp setups, while bringing back that old-school feel of a '60s upright bass and '70s electric bass."

Specifications

  • Input Impedance: 650K
  • Output Impedance: 25K
  • Drive Voltage: 9-15V
  • Current Consumption: 1mA (at 9V)
  • S/N Ratio: -80dB
  • Size (W x D x H): 47 x 100 x 48 mm (Including Protruding Parts)
  • Weight: 160g
  • True Bypass Switching
  • High-Quality Aluminium Enclosure
  • Power: 9V Battery or Standard DC Power Supply

Additional information

Weight 0.5 kg

Brand

One Control

One Control is a brand that focuses on creating compact, high-quality guitar pedals, often in mini-sized formats. Their product lineup includes a range of effects such as overdrives, distortions, and amp-in-a-box designs. One Control pedals are particularly known for their versatility, providing different tones and textures within a small footprint. Pedals like the Strawberry Red Overdrive and the Lingonberry Overdrive are highly regarded for their ability to cover a wide range of gain levels, from bluesy overdrive to medium-gain distortion.

In addition to individual effect pedals, One Control also produces loop switchers and multi-purpose devices, such as the Minimal Series TRI LOOP, which enhances the flexibility of guitar setups. These tools are designed for musicians who need to manage complex pedalboards or integrate effects seamlessly into their performances.

Category

Guitar Pedals

Tags

Boost

Distortion

Distortion pedals take your clean guitar signal and transform it into something bigger, bolder, and full of attitude. By clipping the waveform, they add sustain, bite, and aggression, creating that thick, compressed tone that’s powered rock music for decades. From the growling crunch of classic hard rock to the tight, saturated roar of modern metal, distortion is all about energy and presence. It gives every note weight and authority, pushing your amp to its limits and beyond.

There are countless flavours of distortion, each with its own texture and edge. Some sound smooth and creamy, others raw and gnarly like tearing fabric. It’s the sonic equivalent of turning up the heat until the sound cooks — rich, sizzling, and perfectly seasoned to taste. Whether used for rhythm muscle or soaring leads, a good distortion pedal doesn’t just add volume; it adds personality, grit, and that unmistakable sense of power under your fingers.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Preamp

A preamp pedal shapes and boosts your guitar’s signal before it reaches your amp or recording interface, giving you control over tone, gain, and headroom. It acts as the first stage of amplification, adding warmth, clarity, and character while preparing your signal for the next part of the chain. Some preamps emulate the response of classic valve circuits, while others offer clean, transparent tone shaping ideal for acoustic instruments or direct recording setups.

Used on its own, a preamp pedal can serve as the foundation of your tone, providing a consistent core sound wherever you play. When combined with other effects, it enhances dynamics and helps each pedal sound more defined and natural. Whether you’re looking to push your amp harder, bring life to a dull signal, or refine your sound for the studio, a good preamp pedal adds presence, punch, and musicality to any rig.

used

Volume

Volume pedals control the output level of a guitar signal using a foot-operated treadle. They allow smooth volume swells, dynamic control during playing, and easy muting between songs. Volume pedals can be placed at different points in the signal chain to either control overall loudness or adjust gain and drive behaviour when positioned before distortion or overdrive pedals.

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