SANSUI AU-a707XR, din seria de succes cu noile circuite Alpha Hyper X balansate de la mijlocul anilor 90, cea mai buna serie de amplificatoare integrate de la legendarul producător japonez înainte de a iesi complet din businessul HiFi.

Amplificatorul este varianta pentru piața JP, cu alimentare la 100V fiind vândut împreună cu un transformator step-down extern tot japonez Nissyo sau Kashimura pt priza EU, 230V-100V, de putere min 500w. Ca idee doar valoarea acestui trafo CARE ESTE INCLUS GRATUIT este undeva la 200-250 EURO cu taxe import incluse (TVA+ transport din JP) având în jur de 5-6kg.

NU SCHIMB!!!

Stare foarte bună estetica și funcțională ținând cont de vârsta, a fost servisat recent în Japonia, extras mai jos de la magazinul de unde a fost achizitionat:
Maintenance completed (contact parts of each switch cleaning, DC adjustment, internal and external cleaning, each terminal cleaning, low voltage aging, waveform measurement, listening test, operation check)

audio-database.com/SANSUI/amp/au-alpha707xr-e.html

Type Integrated amplifier
Power Amplifier Unit
Effective output (10 Hz to 20 kHz
Simultaneous operation of both channels) 160W + 160W (6 Ω)
130W + 130W (8 Ω)
Total harmonic distortion factor (at effective output) 0.003% or Less (8 Ω)
Cross modulation distortion factor 0.003% or Less (8 Ω)
Damping factor 150 (8 Ω)
Frequency Response (1W) DC ~ 300 khz + 0 -3dB
Input Sensitivity / Impedance 1V/5k Ω (1 kHz)
Signal-to-noise ratio (A network) 120 dB or more
Dynamic Power 405W (2 Ω)
320W (4 Ω)
210W (6 Ω)
TIM (SAWTOOTH) Measurement limit value or less
Slew rate 200 V / μ sec
Rise time 0.5 μ sec
Preamplifier Section
Input Sensitivity / Impedance
(1kHz) Phono MM : 2.5mV/47k Ω
Phono MC : 300 μ V/100 Ω
CD, Tuner, Line, Tape/DAT1, 2 : 150mV/20k Ω
Phono maximum allowable input MM(THD 0.01%):210mV
MC(THD 0.1%):21mV
Frequency Response (1W) Phono MM : 20 Hz to 20 kHz ± 0.2 dB
CD, Tuner, Line, Tape/DAT1, 2 : DC ~ 200 khz + 0 -3dB
Signal-to-noise ratio (A network) Phono MM : 88 dB or more
Phono MC : 70 dB or more
CD, Tuner, Line, Tape/DAT1, 2 : 110 dB or more
Tone control Maximum variation of Bass : ± 6 dB (50 Hz)
Maximum variation of Treble : ± 6 dB (15 kHz)
Subsonic filter 16 Hz (-3dB), 6dB/oct.
Loudness +6dB(50Hz)
+4dB(10kHz)