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The NAP250 is the replacement for the NAP250DR – Naim’s iconic amplifier: back and better than ever.
First appearing in 1975, the NAP250 power amplifier has become an iconic product. Its aesthetic and technical evolution has ensured its sustained first-rate performance over the years, creating unforgettable musical experiences.
The new sixth generation model delivers more power than ever. Its ultra-modern technology provides unrivalled performance and system flexibility. Designed in Salisbury in the United Kingdom, it can be paired with the loudspeakers of your choice to deliver outstanding listening sessions.
To get the best out of your loudspeakers and music, combine the NSC222 with its perfect partner: the NAP 250 power amplifier. First appearing in 1975, NAP 250 has become an iconic product. Today, it delivers more power than ever and offers ever more flexibility within a complete system. The cutting-edge engineering work involved in the NAP 250 results in unrivalled performance. It delivers 100 watts of A/B class power per channel, fully adjustable to set your music free in the most remarkable way.
The cutting-edge design of the NAP 250 means it can be used even at high sound levels: its heat sink reacts to the increased volume, keeping the product “cool”. Other improvements include the addition of symmetrical XLR connections and a series of technologies derived from Naim’s iconic Statement amplifier, including a eddy current separator available between the loudspeaker outputs. It also incorporates the Naim Audio DR (Discrete Regulator) technology found in the Statement, to benefit from the stable, fluid power supply we know to be essential.
Key points:
• Can be used with legacy products via the legacy range of cables.
• Separate DR PSUs for power amplifier, including the XLR input stage.
• Eight NA009 Naim custom designed power transistors as developed for Statement (4 for the PSUs and 4 for the output stages). Each mounted on ceramic insulators for ultra low capacitive coupling.
• New triple transistor constant current source (CCS)
in delicate gain stage – uses a newly developed CCS for improved sound quality.
• Party-proof: new heatsink design responds to temperature fluctuation, keeping things cool.
• 20 minute auto power off for legacy systems, will wake on detecting music (auto off can be disabled).
• 0.5W standby power
Using two internal power supplies; one is a high quality audiophile linear type, based on a large toroidal transformer. The other is a highly efficient SMPSU for 0.5W power consumption in standby during standby mode.
• Soft-start power up sequence, preventing the large toroidal transformers from tripping mains circuit breakers due to the large influx of voltage required.
• 3.5mm optical inter-product communications for synchronised system control, preventing ground loops. This facility offers LED brightness and power control.
• Eddy current divide situated between speaker output terminals for improved sound quality.
• Custom audiophile components such as polystyrene capacitors in filter circuits for low dielectric absorption.
• Through-hole components reducing microphonies picked up via the circuit board fluctuations.
Power output
100 Watts 8 @0.1% THD+N (100W @0.1%)
190 Watts 4 @1% THD+N
Gain
+29dB
Inputs
2 x True balanced via XLR, 47k
34k singled ended via legacy adaptor lead
Frequency response
-3dB @ 1.4Hz to 100kHz
Passive consumption
26W (idle)
Standby consumption
<0.5W
Mains supply
115V or 230V, 50/60Hz
Burst power 2 (1kHz for 20mS, repeat 500mS IHF)
300 Watts 2 @1% THD+N
Peak current into 1 (1kHz 1mS)
+/-28 amps peak (780W peak power)
THD+N at 2/3rds full power 8 @1kHz
0.013%
Input signal for clipping
1V RMS
Signal to noise ratio ref 1W 8 A-weighted
91dB
Signal to noise ratio ref 100W 8 A-weighted
111dB
Cross talk
60dB
Damping factor into 8ohms
36
Dimensions (HxWxD) 35/8x17x121/2″ (9.15×43.2×31.75cm)
Weight
37.04lbs (16.8kg)
