The Carl Martin Tone Tweaker is a compact, analog tone-shaping utility that combines an active 3-band EQ with up to 12 dB of clean, transparent boost. Equipped with an internal voltage booster for increased headroom and a studio-grade buffered bypass, it allows you to precisely sculpt frequencies, lift signals for solos, or drive the front end of a tube amplifier without coloring your core tone. Its rugged enclosure features top-mounted jacks to optimise pedalboard space.

The Carl Martin Tone Tweaker was designed to do two things exceptionally well: shape your tone with precision and add clean, controlled boost without changing the character of your rig. It’s not about masking what you already like, it’s about refining it and giving it more authority when you need it.

At the core of the pedal is a 3-band EQ with ±12 dB of adjustment on Bass, Mid, and Treble. Each band is carefully voiced to be musical rather than surgical, making it easy to add weight, presence, or clarity without overcorrecting. Subtle adjustments go a long way, whether you’re compensating for room acoustics, switching guitars, or dialing in a specific part in the mix.

Tone Tweaker also includes up to 12 dB of clean boost, allowing you to lift your signal for solos, push the front end of an amp, or simply bring more punch to your rhythm sound. Internally, the pedal uses a voltage-boosting design to increase headroom, helping it stay open and composed even when the EQ and level are pushed.

With its wide frequency range and low-noise performance, Tone Tweaker works just as well at the front of a pedal chain as it does later in the signal path. The buffered output helps preserve signal integrity, especially in more complex setups with longer cable runs.

The layout is deliberately straightforward: Mid, Treble, Bass, and Level. No presets, no modes – just direct control over how your sound is shaped and how hard it hits. Built in a compact, pedalboard-friendly enclosure, Tone Tweaker is a practical tone-shaping tool designed to integrate seamlessly into real-world rigs.

Key Features

• 12 dB boost instantly enhance your signal with a clean, transparent boost that preserves the integrity of your original tone.
• 3 band EQ: Bass, Mid, Treble
• Wide frequency range from 40Hz to 16kHz
• Buffered output preserves signal quality
• Compact, pedalboard-ready size
• Perfect for tone shaping and dramatic or subtle sound enhancement

Dimensions: 112x60x50 mm / 4.4″ x 2.36″ x 1.97″
Weight: 0.234 kg / 0.52 lbs

Specifications

• Input: 1M Ohm
• Output: 100 Ohm
• S/N Ratio: 70dB
• Frequency range: 40Hz-16kHz
• Bass: +/- 12dB / 40Hz
• Mid: +/- 12dB / 1kHz
• Treble:+/- 12dB / 10kHz
• Power consumption: max. 45 mA
• Power supply: 9 V DC (regulated), 60 mA minimum, 2.1 mm female plug, center negative (-)
• Bypass: Buffered

Super Fun Awesome Happy Time Pedal Show demo of the Carl Martin Tone Tweaker:

Brett Kingman demo of the Carl Martin Tone Tweaker:

Leon Todd demo of the Carl Martin Tone Tweaker:

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