Carl Martin Tone Tweaker EQ/Boost Pedal

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.

• Circuit Type: Analog
• Bypass Type: Buffered Bypass
• Input Impedance: 1 MΩ
• Output Impedance: 100 Ω
• Signal-to-noise Ratio: 70 dB
• Frequency Range: 40 Hz – 16 kHz
• EQ Range: Bass: ±12 dB @ 40 Hz, Mid: ±12 dB @ 1 kHz, Treble: ±12 dB @ 10 kHz
• Maximum Boost: +12 dB
• Input: 1 x 1/4" (6,35 mm) Jack
• Output: 1 x 1/4" (6,35 mm) Jack
• Power Supply: 9V DC (Regulated)
• Power Consumption: Max. 45 mA
• Recommended Power Supply: 9V DC, 60 mA minimum (not included)
• Connector: 2.1 mm, center negative
• Battery Operation: Not supported
• Dimensions:  (H x W x D) 60 × 115 × 50 mm / 2.36" × 4.53" × 1.97"
• Net Weight: 0.234 kg / 0.52 lbs