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NAD 7225PE receiver

 

NAD Stereo AM/FM Receiver, Features:

25 W RMS, power Envelope Technology

85 W Dynamic power

Soft Clipping

Pre-out/Main-in

Speaker impedance selector

5-way speaker binding posts

Glod-flashed Phono input jacks

 


Specifications:

Power  Section

 Continuous Average Power Output into 8 Ω (min. Powerper Channel, 20Hz-20kHz, both channel driven, with no more than rated distortion):    25 W (14 dBW)

Rated Distortion (THD 20Hz-20kHz) :  0.03%

Clipping Power (Maximum Continuous Power per Channel) :  40 W (8 Ω, 1 kHz)

IHF Dynamic Headroom (at 8Ω):  +4 dB

IHF Dynamic Power (Maximum Short Term Power per Channel)

60 W at 8 Ω (18 dBW)

85 W at 4 Ω (19 dBW)

90 W at 2 Ω (19,5 dBW)

Damping Factor (ref. 8Ω, 50Hz):  better than 50

Input Impedance:  20 kΩ / 820 pF

Input Sensitivity (for Rated Power into 8Ω) :  1 V

Frequency Response :  12 Hz - 45 kHz (+0, -3 dB)

Signal-to-Noise Ratio :  100 dB (ref. 1 W);  114 dB (ref. Rated Power)

Total Harmonic Distortion  (20Hz - 20kHz):  less than 0.03%

Pre-amp Section

Phono Input

Input Impedance (R / C) :  47 kΩ/100 pF

Input Sensitivity (1kHz) :   2,5 mV  (ref.  25 W )

Signal-to-Noise Ratio (A-weighted with cartridge connected) :  75  dB (ref. 5 mV )

Total Harmonic Distortion (20 Hz - 20 kHz) :  less than 0.04%

IM Distortion:  less than 0,04%

RIAA Response Accuracy (20 Hz - 20 kHz):  ±0.5 dB

Line Level inputs [Tuner, CD, Aux, Video, Tape]

Input Impedance (R / C) :  40 kΩ/100 pF

Input Sensitivity :  160 mV (ref.  25 W)

 Maximum Input Signal:   better than 10 V

Signal-to-Noise Ratio (A-weighted):  85 dB  (ref.  1 W);  99 dB  (ref.25 W)

Frequency Response:  20 Hz - 20,000 Hz (+0,5 dB -1,0 dB)

Infrasonic Filter:  -3 dB at 15 Hz, 24 dB/octave (fixed)

Line Level Outputs

Output Impedance

Pre-Out :  600 Ω

Tape Source:  Z + 1000 Ω

Phones :  220 Ω

Maximum Output Level :  12 V

Pre-Out :  10 V

Tape  :  better than 10 V into 600 Ω 

Phones :  better than 500 mV into 8 Ω

Tone Controls

Treble :  ±7 dB at 10 kHz

Bass : ±10 dB at 50 Hz

FM Tuner Section

 Input Sensitivity

Mono (-30 dB THD+N) :  11,3 dBf (2,0 µV/300Ω)

Mono (50 dB  S/N):  15 dBf (3,0 µV/300Ω)

Stereo (50 dB S/N):  37 dBf (40 µV/300Ω)

Stereo (60 dB S/N ):  47 dBf (120 µV/300Ω)

Capture Ratio (45 and 65 dBf):  less than 1,5 dB

 AM Rejection (45 and 65 dBf) :  better than 60 dB

Selectivity, Alternate Channel:   58 dB

Subcarrier Suppression (19 and 38 kHz)

Image Rejection:  70 dB

IF Rejection:  90 dB

Harmonic Distortion (100% mod.)

Mono (1 kHz):  0.1%

Stereo (1 kHz) :  0.1%

Signal-to-Noise Ratio (at 65 dBf, IHF weighted)

Mono :  better than 80 dB

Stereo :  better than 74 dB

Frequency Response:  30 Hz - 15 kHz  ±0,5 dB

Stereo Separation FM NR off (at 1 kHz):  45 dB

AM Tuner Section

 Usable Sensitivity:  5 µV

Selectivity:  30 dB

Image Rejection:  45 dB

IF Rejection:  35 dB

Signal-to-Noise ratio:  45 dB

Harmonic Distortion:  0.5%

General

Power Supply?/Cnsumption :  120 ~ 240 V, 50/60 Hz / 150 W

Dimensions (W x H x D):  420 x 91 x 273 mm

Net weight :  5,5 kg

Shipping weight :  6,8 kg

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