The NAC 252 descends from the NAC 52 - still one of the finest pre-amplfiers ever manufactured. It brings both control and connectivity advances over the NAC 52, and a significantly enhanced construction, aesthetic and finish. Its performance, too, is enhanced with the benefit of a decade of R & D bringing yet more speed, detail, transparency and music.
Improved earthing arrangements have resulted in an entirely new circuit topology, built upon a single very high quality, anti-resonance main audio circuit board. Anti-vibration, resonance-controlling feet compliment the ingeniously slotted and suspended main circuit board to protect the sensitive internal components from resonance and microphonic vibration. Ten independently regulated power supplies are fed from the matching Super-Cap power supply. Totally separate regulated supplies for the digital control and switching ensure no noise is generated in the audio circuits.
Six line-level inputs including two user-configurable versatile (DIN / phono) inputs.
User configurable unity-gain AV input.
Powered input for use with Stageline or Prefix phono stage.
Full infrared remote control.
RC5 input for wired remote control in complex installations.
Optional RS232 input / output for use in full home automation systems.
The Naim Super-Cap power supply provides each of the ten audio circuits with an independent regulated power supply.
Separately regulated power supply for the digital control and switching circuitry.
Specifications
Analogue inputs 6 (configurable)
Tape outputs 3
Input sensitivities 75mV, 47kOhm
Output levels, tape 75mV, 600 Ohm
Main output 0.775V, < 50 Ohm
Overload margin, all inputs, all audio frequencies 40dB
Dimensions (H x W x D) 87 x 432 x 314mm
Finish Black, brushed aluminium