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Gem Audio Labs Preceptor Model-A

Gem Audio Labs Preceptor Model-A

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Gem Audio Labs Preceptor Model-A

The GEM AUDIO LABS Preceptor is two-channel (stereo/dual mono), pure analog (Class-A, discrete) dynamic processor, in which the gain reduction is made by a transistor in the differential amplifier circuit with Zener diodes stabilization. In fact, there are two independent mono blocks sharing common enclosure, the ON/OFF switch and the LINK/DUAL MONO switch.
Power supply section

Special care has gone into the design of the power supply of the Preceptor because the power supply is the heart of any electronic system, and the better it is, the better the whole system works. In an audio system, this translates into a better sound quality, lower noise and unwanted distortion elimination.

Preceptor’s power supply is based on a 70VA toroidal transformer, which is made on our special order from properly selected cores. It is characterized by the highest quality, good supply of power, silent operation and excellent electrical parameters. It has a core and windings impregnation, electrical shielding (between windings) and magnetic (external screen), its center is flooded with resin. The transformer has an anti-vibration mount.

On the primary side of the transformer a special EMI filter is installed. It filters out any interferences that can enter the device from the electric network. Signal sections are separated from the power supply section by solid metal partitions.

Every channel has its own rectifiers and secondary voltage stabilizers. We have designed a special filtering stage with high capacity capacitors (10000µF) and special active filters (based on discrete elements) eliminating noise and ripple. The power of all stages is symmetrical and every section has independent stabilization, which keeps the voltage range of +/- 0.01 V. All the voltage stabilizers are mounted to the common heat sink which cools them evenly . Furthermore, the heat sink acts as an additional shield.
Rotary and toggle switches

The Preceptor has only rotary and toggle switches installed to obtain the best repeatability of the all settings. Thus You can easily return to your favorite settings. By using 1% low-noise metalized resistors and gold contact rotary switches, we succeeded to obtain (in the link mode) the difference between levels and characteristics of two channels in a range of +/- 0.1 dB..


Massive sound
Hand made and calibrated
Pure analog design
3U rack space
Internal PSU 115V/230V
Special power transformer
Two independent mono blocks
Ultra stable power supply
16 matched Zener diodes in the signal path
Internal and external sidechain
Classic Carnhill transformers
Input Z switchable (2k5Ω or 10kΩ)
Stereo or dual mono operation
Hard relay bypass
Sidechain HPF
Blend function (parallel compression)
Retro panel meters
Only gold contact stepped attenuators and toggle switches (no potentiometers!)
Easy-settings repeatability
Highest functionality!
Weight: 6,4kg
Short Description Compressor / Limiter - Aggressive.
Demo in Store N/A
Manufacturer Gem Audio Labs
Old Price N/A

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Inc. VAT: £2,496.00 Ex. VAT: £2,080.00
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