NAD 7400 receiver - charcoal grey :
NAD Monitor Series stereo receivers are unique in the industry : no design compromises are made simply to meet a price point - they contain exactly the same circuitry as NAD’s high performance separates. The 7400 consists of the 3400 integrated amplifier, with its astonishingly large margin of dynamic headroom for the uncompressed peaks and climaxes in today’s digital recordings, combined with the 1700 preamp which has a very sensitive and selective digital tuner
A remote control is included for added convenience, allowing armchair operation of numerous key functions : volume, tuning [14 presets or station search], low level muting, six input selectors, and power on / off. The remote control actuates a miniature DC motor on the volume control shaft, avoiding the potential noise and distortion of electronic volume circuits
The tuner section of the 7400 employs substantially the same circuitry as NAD’s 1700 preamplifier / tuner-including a sensitive dual-gate MOSFET input stage, a low-distortion quadrature detector, a PLL multiplex decoder with uniformly wide stereo separation, and a three-stage I.F. circuit whose narrow-IF mode cleanly extracts weak signals from the skirts of strong stations. FM NR improves the listenability of stereo signals and provides a 50 dB stereo quieting sensitivity of just 26 dBf [5.5uV into 75 ohms}. Up / down buttons provide manual tuning or skip to the next strong station
With overload-proof line inputs, a feedback-operated volume control, and quiet low-impedance tone control circuits, the 7400 accommodates a dynamic range greater than 110 dB, preserving the transparent clarity of the finest recordings. The MM, MC phono pre-amp has very low noise, precise RIAA equalisation , correct interfacing with the complex impedances of phono pickups, and plenty of headroom for high-level peaks without distortionBased on the 3400 Amplifier, the 7100 produces 100 watts per channel of continuous power and over 370 watts per channel of tone-burst power for music. In bridged mode those ratings are doubled. The high-current output stage can deliver 40 ampere peaks for precise electromagnetic control of voice-coil motion and will drive impedances as low as 2 ohms with ease and authority
Specifications :
Phono input :
-:®:- Input impedance [MM or MC]: R = 47 kohm, C = 120pF
-:®:- Input sensitivity [1kHz] : MM 0.28mV for 1W out, MC 200µV for 1W out
-:®:- Input overload [ 20Hz / 1kHz / 30kHz ] : MM 20 / 180 / 1500 mV MC 1.5 / 13 / 110 mV
-:®:- Signal / Noise ratio [IHF A-weighted, with cartridge connected]: MM 76 dB ref 5mV MC 76 dB ref 5mV
-:®:- THD [ 20Hz – 20kHz and IM distortion ] : < 0.04% at +30dB level
-:®:- RIAA response accuracy : ±0.5dB
Line level inputs [ CD, VIDEO, TAPE, EPL ] :
-:®:- Input impedance : R= 50kohm C= 250pF
-:®:- Input sensitivity : 15mV for 1W out -:®:- Maximum input signal : 10V
-:®:- Signal / Noise [ A-weighted ] : > 96dB ref 1W
-:®:- Frequency response : 20Hz – 20kHz ±0.3dB
Outputs :
-:®:- Output impedance : Tape or external processor line EPL 1000ohms Normal 600ohms Phones & high 100ohms
-:®:- Maximum output level : Tape, Normal and EPL : 10V High level & headphones : 15V
-:®:- Tape output infrasonic filter : -3db at 12Hz, 12 dB / octave
Tone controls : -:®:- Treble : ± 12dB at 3, 6, or 12kHz [parametric] -:®:- Bass : ± 12dB at 50, 120, or 150Hz
-:®:- Bass EQ : +3dB at 60Hz, +6dB at 36Hz
Power amplifier section :
-:®:- Continuous power at 8 ohms : 100W [ 20dBW ]
-:®:- Rated distortion : 0.03%
-:®:- Dynamic headroom : +5.7dB 370W at 8 ohms, 400W at 4 ohms, 440 at 2 ohms
-:®:- Damping factor [8 ohms, 50Hz ] : > 100
-:®:- Input impedance : 20kohm / 600pF input sensitivity : 1.00V
-:®:- Frequency response : 3Hz - 100KHz +0dB / -3dB
-:®:- Signal / Noise : [ 1W ] 98dB rated output 118dB
Bridged mono mode :
-:®:- Continuous power at 8 ohms : 200W [ 23dBW ]
-:®:- Dynamic headroom : 7dB 500W at 8 ohms, 660W at 4 ohms
Dimensions :
-:®:- Size [ W x H x D ]: 420 x 120 x 390mm
-:®:- Weight : 11.8kg packed weight : 13.6kg
-:®:- NAD 7400 S/N: 810-270705 Made in Japan
SOLD September 2010 on trademe to Levin
|
