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Chameleon Labs 7603 XMOD Line/Mic/DI Pre-Amplifier

7603 XMOD Line/Mic/DI Pre-Amplifier with On Switch, 300Ω / 1200Ω Switch, 48V Power Supply Switch, DI Switch, EQ Switch, Polarity Switch, Mic/Line Sensitivity Switch, High-Pass Filter, and XLR and TRS Connections


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MSRP: Old Price $1,100.00 Discounted Price $949.00 Save : $151.00 (14%)
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MSRP: Old Price $1,100.00 Discounted Price $949.00 Save : $151.00 (14%)
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As with the 7603, the fundamental design architecture of the 7603-XMod retraces the path of revered, classic pre-amps of the past as well as our popular 7602, however Chameleon has chosen to continue the tradition created by the 7602-XMod, allowing users to revel in the character and performance afforded by Carnhill's legendary English components.

Circuit Boards
Once your audio exits the input transformer, Chameleon Labs circuit boards are carefully crafted to ensure the highest possible signal integrity. As a starting point, Chameleon Labs developed a discrete audio input gain stage based on their vision for a solid topology that provides extremely low-noise, high-dynamics and extreme bandwidth. All of the 7603-XMod's operational amplifiers used throughout the device are based on this topology.

EQ Settings
The 7603-XMod features EQ stages with four different available adjustments—Variable High Pass, Low Frequency Shelving, Mid Frequency and High Frequency Shelving. Chameleon Labs engineers made a conscious decision to stay with the same, desirable, inductor-based topology that made their 7602 so popular, however they implemented their discrete Op Amp to drive signal through a set of custom designed and manufactured inductors.

Microphone input impedance can be selected between 300 and 1200 ohms, providing a method by which a microphone can be more ideally matched to the input stage and making it easier to get the best from lower output microphones such as ribbon-based designs. Chameleon Labs added a low-impedance Direct Input on the front panel for plugging in instruments such as guitars that can be run through the line input stage, and added a precision VU meter with custom ballistics for visual monitoring of either the input or output levels.


  • UK Carnhill Microphone and Line Input transformers and Carnhill UK output transformer, all with mu-metal housings
  • High resolution, low noise discrete audio circuitry
  • Hi-Z Direct Instrument Input (TRS)
  • Discrete Class A Electronic Topology
  • Three band, inductor-based EQ
  • 48V phantom power for mic input
  • Selectable 300Ω or 1200Ω Mic Input Impedance
  • Custom VU meter (input/output) with calibrated ballistics
  • Relay based selection of Line / Mic & DI Inputs
  • Overload input and output indicators
  • Reverse Phase Switch
  • Universal, on-board power supply

Get your Chameleon Labs 7603 XMOD Line/Mic/DI Pre-Amplifier today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Microphone Preamp


by PowerReviews
Number of Channels 2
Frequency Response 10Hz-20kHz
XLR Inputs 1 input
XLR Outputs 2
1/4" Inputs 1
Analog Inputs Number 1
Analog Outputs Number 2
Gain Range +10dB to -60 dB
Connectors 3 x XLR, 1 x TRS
Compressor No
Side Chain I/O No
EQ Yes
Phantom Power Yes
Additional Controls/Features
  • Turn Pre Amp On - VU Meter Light
  • 300Ω / 1200Ω Switch
  • DI Switch
  • EQ Switch
  • Polarity Switch
  • Mic/Line Sensitivity Switch
  • High Pass Filter
  • Computer Connectivity None
    Series 7603 Series
    Model 7603
    Information not available

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