The MA05 is a five channel, all-discrete, transformerless microphone preamplifier. It’s unique circuitry combines the most modern high-performance topologies with robust, high-power discrete layouts. Designed with longevity in mind, the MA05 is modular, based on GKL’s 514 op amps and DBIA discrete instrumentation amplifiers. The MA05 is ultra low noise with low distortion and an extremely fast slew rate for extended bandwidth even at high output levels (greater than +28dBu). The front panel controls allow for direct access to all of the MA05’s features (Mode, Gain, and HPF) the unit is also remote controllable over Ethernet.

The input stage adapts for the type of microphone in use, the 2.4kΩ DC coupled input increases to 20kΩ in ribbon mode. When phantom power is activated for condenser microphones, high- quality PET capacitors AC couple the 6kΩ input. The rear panel provides gold plated XLR I/O with Ethernet and USB connections as well as a user switchable 110/220V IEC connection. The GKL MA05 is a truly beautiful piece of equipment, all hand-made with custom aluminum and enamel knobs, thick front panels, and anodized chassis - 100% built in Montréal.