Naim NAP250 New Classic Stereo Power Amplifier

Description

Our iconic amplifier: back and better than ever.
In production since 1975, the NAP 250 power amplifier has gained iconic status. This new sixth-generation model delivers more power than ever before; state of the art engineering provides unrivalled performance, greater system-matching and flexibility.

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.

Separate DR PSUs for power amplifier, including the XLR input stage.

FEATURES

•     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.

SPECIFICATIONS

Type     Power Amplifier
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, repear 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 8     36
Dimensions (HxWxD)     35/8x17x121/2" (9.15x43.2x31.75cm)
Weight     37.04lbs (16.8kg)

Whats in the box?
    NAP250 Power Amplifier
    Australian IEC Power Cable
    Manual