ASR Phono preamplifier Mini Basis

Phono preamplifier for moving magnet (MM) and moving coil (MC) cartridge systems. Like all ASR amplifiers, the technology of the "small" ASR Mini Basis phono preamplifier is housed in a high-quality, slightly transparent acrylic glass enclosure.

A wide range of adjustment options for input resistance and gain allow each pickup to fully exploit its inherent sound qualities.

Thanks in no small part to the sophisticated power supply, the ASR Mini base unit sounds very dynamic, with a very powerful yet controlled bass. The sound is characterized by precise spatiality and excellent detail resolution.
The sound is, as is typical for ASR products, very relaxed and unobtrusive.

As with the Emitter, many additional customer requests in terms of equipment can be realized.

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Signal-to-noise ratio: > 60dB (depending on settings).
RIAA equalization: < 1dB deviation from 20Hz to 20kHz
Distortion: < 0.01% THD.
Transformer: 72 VA.
Total filter capacitance: 200,000 uF.
Fuse 500 mA slow blow.
Housing made of low-resonance, slightly transparent acrylic glass.
Highly efficient, shielded 72 VA PM (Philbert sheath cut) transformer.
Particularly high-quality core sheet with low stray field for high dynamics.
Ultra-fast and low-loss Schottky diodes, 200,000 uF filtering.
Extremely fast and low-noise measuring amplifier ICs.
Adaptable to MM and MC cartridges using two DIP switches.
Input resistance switchable with 10-way DIP switch between 12 and 47,000 Ohm (47KOhm).
Gain adjustable with 6-way DIP switch from +30 dB to +70 dB.