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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 300O or 1200O Mic Input Impedance
Custom VU meter (input/output) with calibrated ballistics
Relay based selection of Line / Mic & DI Inputs
Overload input and output indicators
As with the 7603, the fundamental design architecture of the Chameleon Labs 7603-XMod retraces the path of revered, classic pre-amps of the past as well as the 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.
Displaying the same high dynamics and low distortion as the "vanilla" 7603, the 7603-XMod simply provides a different character to the sound of the pre-amplifier.
Once your audio exits the input transformer, the circuit boards are carefully crafted to ensure the highest possible signal integrity. As a starting point, Chameleon Labs have developed a new discrete audio input gain stage based on a 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.
The 7603-XMod features EQ stages with four different available adjustments—Variable High Pass, Low Frequency Shelving, Mid Frequency and High Frequency Shelving. Chameleon's engineers made a conscious decision to stay with the same, desirable, inductor-based topology that made the 7602 so popular, however Chameleon Labs have implemented new discrete Op Amp to drive signal through a new set of custom Chameleon designed and manufactured inductors, providing the musicality we all love to use.
Its output stage is unique with respect to its design and performance. It can be described as a variable gain circuit that simultaneously adjusts both the input and output levels in order to generate a lower noise floor and extraordinary audio performance.
The 7603-XMod pre-amplifier provides a desirable set of user selectable functions designed to make the unit flexible and an integral part of the artistic process, incorporating a full portfolio of traditional features as well as some not commonly seen on other pre-amps.
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 have 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.
For more information on this or any other Chameleon Labs product, visit www.chameleonlabs.com.
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