This Chameleon Labs 7603 X-Mod was brand new and used for display for three days at the NAMM Show 2026 by the manufacturer. It comes with a full factory warranty, our extended warranty, and all factory packaging and paperwork.

Chameleon Labs 7603 X-Mod Features
  • UK Carnhill Transformers: Features Carnhill UK microphone and line input transformers and Carnhill UK output transformer, all with mu-metal housings.
  • Discrete Class A Design: High-resolution, low-noise circuitry for pristine audio.
  • Hi-Z Direct Input: Front panel TRS input for instruments like guitars.
  • Inductor-Based EQ: Three-band EQ with adjustable high-pass, low, mid, and high frequencies.
  • Selectable Mic Impedance: 300Ω or 1200Ω settings for optimal microphone matching.
  • Precision VU Meter: Custom ballistics for accurate input/output monitoring.
  • Universal Power Supply: Onboard switch-mode power supply for worldwide compatibility.
Description

The Chameleon Labs 7603 X-Mod retains the exceptional dynamics and low distortion of the 7603 while introducing the unique sonic character of Carnhill’s legendary English components. This pre-amplifier is perfect for artists and engineers seeking both versatility and vintage tonal quality.

With its custom-designed transformers and inductor-based EQ topology, the 7603 X-Mod delivers superior performance while preserving the musicality associated with classic designs. The unit’s flexibility and precise control make it an indispensable tool for any studio setup.

Specifications

User-Controlled Functions:

  • Mic Impedance: Switchable between 300Ω and 1200Ω for mic matching.
  • 48V Phantom Power: Switchable phantom power for condenser mics.
  • Direct Input: 100kΩ input sensitivity for instruments.
  • Polarity Switch: Reverse the polarity of the audio signal.
  • High-Pass Filter: Adjustable at 40Hz, 80Hz, 160Hz, and 320Hz.
  • EQ Controls: Low, mid, and high-frequency adjustments with inductor-based design.
  • Gain Adjustment: Mic boost (+20dB to +70dB) and line level (-30dB to +20dB).
  • VU Meter: Monitor input/output levels with overload indicators.

Audio Specifications:

  • Frequency Response: 10Hz - 20kHz (-0.5dB), 10Hz - 50kHz (-1dB).
  • Maximum Output: +28dBu into 600Ω load.
  • Signal-to-Noise Ratio: 116dB at maximum output.

Inputs:

  • Microphone: Transformer balanced, RF isolated.
  • Line: Transformer balanced, RF isolated.
  • Direct Input: High impedance (100kΩ).

Mechanical:

  • Build: 1RU steel enclosure with an aluminum front panel.
  • Graphics: Laser etched for durability.
  • Knobs: Milled aluminum for precision control.
Power Supply

100V - 240V (50/60Hz) switch-mode power supply with 3A peak output capability and low power consumption.

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ConditionB-Stock (Used)
B-Stock items are sold by an authorized dealer or original builder, but have been opened, blemished, or used in some manner.Learn more
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  • Chameleon Labs 7603 X-Mod Microphone Preamp & EQ - Namm B-Stock
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