Naim NAP-250 Stereo Poweramp

NAP 250 - 6th generation

The legendary NAP 250 power amplifier is back. And he's better than ever.

The NAP 250 power amplifier, which has been in production since 1975, has achieved cult status. The new sixth generation model delivers more power than ever before; state-of-the-art technology ensures unmatched performance, greater system customization and flexibility. Engineered in the UK, the power amp is ready to power the speakers of your choice - and take your music to new heights.

• Pure, fully regulated Class A/B power amplifier with 100 W per channel
• Remote input/output for control in legacy systems
• DR (Discrete Regulator) for generating low-noise power supplies for
  the regulated output stage of the amplifier
• True balanced XLR input using a newly designed, ultra-fast, low-noise, single-ended Class A buffer

More features

• Can be used with older products via the Legacy range of cables.
• Separate DR power supplies for the power amp, including the XLR input stage.
• Eight NA009 power transistors specially designed by Naim as designed for Statement (4 for the power supplies and 4 for the output stages). All mounted on ceramic insulators to ensure extremely low capacitive coupling.
• New triple transistor constant current source (CCS) in the sensitive gain stage - uses a newly developed CCS for
  improved sound quality.
• Suitable for parties: The new heat sink design reacts to temperature fluctuations and keeps the devices cool.
• 20-minute auto-shutoff for older systems, wakes up
  when music is detected (auto power off can be disabled).
• 0.5W standby power
• Soft-start power-up sequence that prevents the large toroidal transformers from blowing mains fuses due to the high voltage demand.

Technical specifications

Type
Stereo power amplifier

output power amplification
100 Watts 8 @0.1% THD+N (100W @0.1%) 190 Watts 4 @1% THD+N +29dB

inputs
2 x true balanced via XLR, 47k
34k single-ended over legacy adapter cable

frequency response
-3dB at 1.4Hz to 100kHz

Passive power consumption
26W (idle)

standby consumption
<0.5W

mains power supply
115V or 230V, 50/60Hz

Burst power (1kHz for 20mS, repeat 500mS IHF)
300 watts 2 @1% THD+N

Peak current (1kHz 1mS )
+/-28 amps peak (780W peak power)

THD+N at 2/3 full power @1kHz
0.013%

Input signal for clipping
1Vrms

Signal to noise ratio ref 1W 8 A-weighted signal to noise ratio
91dB

Signal to noise ratio ref 100W 8 A rated
111dB

crosstalk
60dB

Signal to noise ratio ref 100W 8 A rated
36

Dimensions (HxWxD )
35/8x17x121/2' (9.15x43.2x31.75cm)

weight
37.04lbs (16.8kg)