NRPavs  SOLD items 2013 archive 1  NAD  7225PE  stereo receiver 2nd unit  details
SOLD items 2013 archive 1 product details : 
NAD  7225PE
stereo   receiver  - 2nd unit
NAD  7225PE  stereo  receiver
NAD  7225PE  stereo receiver  :  controls  closeup
NAD  7225PE  stereo  receiver  :  display  closeup
NAD  7225PE  stereo receiver  :  back  view
NAD  7225PE  stereo  receiver  :  top  view
NAD  7225PE  stereo receiver  :  size  scale
   SOLD January 2013 on trademe  to Remuera, Auckland
S/N : T722518499
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   NAD   7225PE stereo receiver 2nd unit - charcoal grey :                 

   NAD's product philosophy can be characterised in one phrase : high-value engineering. The compact and economical 7225PE receiver is an outstanding example of that approach; it contains much of the same circuitry as the 7240PE, with less output power and a substantial saving in cost
   In budget-level stereo receivers, performance and power often are compromised to reduce production cost. But NAD combines high production efficiency with superior performance by using the same circuits in both separates and receivers. The 7225PE contains the entire 3225PE integrated amplifier plus a sensitive, wide-range digital tuner

   The 7225PE is conservatively rated at 25 watts / channel of steady-state power for sine-wave test tones : but with +4 dB of IHF dynamic headroom, its effective power for musical transients is considerably greater. Power Envelope design produces bursts of up to 60 watts / channel at 8 ohms and 80 watts / channel at 4 or 2 ohms, ensuring clear and authoritative reproduction of the impact and sparkle of live music. If you ever overdrive the 7225PE, Soft Clipping will prevent the harshness and gritty distortion that is caused by hard clipping in conventional amplifiers

   NAD's impedance selector allows optimum performance to be delivered into any speaker impedance. The 7225PE produces up to 15 amperes of peak current, delivering full power to impedances as low as 2 ohms. The quiet phono stage and wide-range line-level circuits, like those in the 7240PE, transparently reproduce even the subtlest detail of every recorded sound. Infrasonic and ultrasonic filters eliminate unwanted interference while preserving accurate response from 20 Hz to 20 kHz. Musically effective tone controls adjust the deep bass and high treble without sacrificing clarity or midrange accuracy

   Radio is not just for background music, and tuner performance should not be compromised. The 7225PE employs much of the same highly-evolved technology as the NAD 4225 tuner. A sensitive MOSFET front end, three stages of I. F. filtering, and a PLL multiplex decoder for wide stereo separation, provide an optimum combination of good selectivity and low distortion. In side-by-side comparisons with other receivers, the 7225PE often pulls in weak or difficult stations with noticeably better clarity and quieting

Specifications :
  -:®:-    Vintage : 1988 model
  -:®:-    Phono input : Input impedance (R and C) 47k ohm / 100pF
  -:®:-    Input sensitivity : 1kHz2.5mV ref. 25W
  -:®:-    Signal / Noise ratio (A-weighted with cartridge connected) : 75dB ref. 5mV
  -:®:-    THD (20Hz to 20kHz) < 0.04%   RIAA response accuracy [20Hz to 20kHz] : ▒0.5dB
   Line level inputs :   Input impedance (R and C) 40k ohms / 100pF
  -:®:-    Input sensitivity [ref. 25W] : 160mV
  -:®:-    Maximum input signal : > 10V
  -:®:-    Signal / Noise ratio [A-weighted ref 1W] : 85dB
  -:®:-    Frequency response [20Hz to 20kHz] : +0.5dB, -1.0dB
  -:®:-    Infrasonic filter : -3db at 15Hz, 24dB/octave
  -:®:-    THD : 0.01%
   Line level outputs :   Output impedance : Pre-amp 600 ohms   Tape Source Z + 1k ohms   Phones : 220ohms
  -:®:-    Maximum output level : 12V   Tape : 10V  Phones > 10V into 600ohms, > 500mV into 8ohms
   Tone controls :   Treble : ▒ 7dB at 10kHz   Bass : ▒10dB at 50Hz
  -:®:-    Continuous output power into 8 ohms 25 Watts (14dBW)at rated distortion :(THD 20Hz - 20kHz) : 0.03%
  -:®:-    Clipping power [maximum continuous power per channel] : 40W
  -:®:-    IHF Dynamic headroom at 8 ohms : +4dB
  -:®:-    IHF dynamic power [maximum short term power per channel] : 8 ohms 60W (18dBW),   4 ohms 85W (19dBW),    2 ohms 90W (19.5dBW)
  -:®:-    Damping factor [ref. 8 ohms, 50Hz] : > 50
  -:®:-    Input impedance : 20k ohms / 820pF  Input sensitivity (for rated power into 8 ohms) : 1V
  -:®:-    Frequency response : 12Hz to 45kHz  +0dB, -3dB
  -:®:-    Signal / noise ratio [ref. 1W] : 100dB   ref. rated power : 114dB with THD (20Hz to 20kHz) < 0.03%

  -:®:-    Input sensitivity : Mono -30dB THD + Noise : 11.3dBf [2.0ÁV / 300ohms]
  -:®:-    Mono 30dB S/N : 15dBf [3.0ÁV/300ohms]   Stereo 50dB S/N : 37dBf [40ÁV/300ohms]
  -:®:-    Stereo 60dB S/N : 47dBf [120ÁV/300ohms]
  -:®:-    Capture ratio [45 - 65dBf] : < 1.5dB
  -:®:-    AM rejection [45 - 65dBf] : > 60dB
  -:®:-    Selectivity, alternate channel : 58dB   Image rejection : 70dB   I F rejection : 90dB
  -:®:-    Harmonic distortion : Mono 0.1%    Stereo 0.1%
  -:®:-    Signal / Noise ratio : Mono > 80dB    Stereo > 74dB
  -:®:-    Frequency response [▒0.5dB} : 30Hz - 15kHz   Channel separation at 1kHz : 45dB

  -:®:-    Usable sensitivity : 5ÁV   Selectivity : 30dB   Image rejection : 45dB   IF rejection : 35dB
  -:®:-    Signal / Noise ratio : 45dB   Harmonic distortion : 0.5%
  -:®:-    Remote : No    NAD Link : No
  -:®:-    Dimensions [W x H x D]: 420 x 91x 273mm   Weight : 5.5kg, packed weight : 7kg

   SOLD January 2013 on trademe  to Remuera, Auckland


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