This Chameleon Labs 7603 was brand new and used for display for three days at the NAMM Show 2025 by the manufacturer. It comes with a full factory warranty, our extended warranty, and all factory packaging and paperwork. Available to ship the week of January 27th.
Chameleon Labs 7603 Features
- Custom Transformers: Chameleon-wound microphone, line input, and output transformers with mu-metal housings for superior performance.
- 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 is the flagship pre-amplifier, blending classic design inspiration with modern engineering for exceptional audio performance. Its proprietary transformers and carefully crafted discrete gain stages ensure low noise and high dynamics, preserving the truest form of your audio signal.
The 7603’s EQ stages are inductor-based, offering the warmth and musicality associated with vintage circuits while incorporating Chameleon’s advanced engineering for superior performance. Its robust feature set, including selectable mic impedance and direct instrument input, makes it a versatile choice 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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