Naim NAC 32.5 Pre Amplifier (1988)

Classic ‘chrome bumper’ preamplifier from British specialist Naim Audio. Our example of the classic NAC 32.5 dates from 1988 and is in good fully working condition. It has no phono boards but 2 x sets NA328 variable input boards instead. Rubber feet are poor. It comes supplied in original factory packaging along with our usual three month warranty. Please note that like all Naim preamps, it requires power to be supplied from another unit, normally a power amplifier like a NAP 90 or 110, or a dedicated power supply like the HiCap we currently have available on our site.
Naim Say….
The basic electronic circuitry of the NAC 32.5 is similar to that of the NAC 62, but more facilities are available. These consist of a phono Input with a choice of input boards, a variable high level input, one tuner and two tape inputs. Tape sockets have combined input/output connections, and the tape monitor switch has a mute facility. Tape inputs are buffered. Tape outputs are fed from a 600Ω source. The tape monitor facility is automatically switched between tape 1 and tape 2, with tape 1 having precedence. A mono/stereo switch operates on all outputs.
The NAC 32.5 is available with the same input board options for No.1 input as the NAC 62: type S for low output moving coil cartridges, type K designed especially for Linn Karma and Troika, type N for high output magnetic cartridges, or type V to provide a second variable high level input. Both No. 1 and 2 inputs have plug in boards and may be changed to suit the user’s requirements.
Internally the NAC 32.5 consists of a mother board with eleven daughter boards interconnected with gold-plated precision connectors. Both the NAC 62 and the NAC 32.5 have BNC sockets for interconnection with pick-up cartridges and locking DIN sockets for all other connections. Special circuitry delays output to the amplifier until normal operating conditions are reached after turn-on. Power is supplied from a regulated supply in the NAP 90, 140, or SNAPS via a SNAIC-4 interconnect, or, with improved performance, from a HiCap power supply via a SNAIC-5. Use of a remote supply ensures hum-free operation and enables correct earthing to be used.
Dimensions: 205 (W) x 300 (D) x 76 (H) mm.

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