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Technics SU-A80

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Technic details

Specifications

Type:
Integrated DC Amplifier
[Main amplifier section]
Effective output (Both channels simultaneous drive):
72W + 72W (8Ω, 20Hz to 20kHz)
75W + 75W (8Ω, 1kHz)
Total harmonic distortion:
0.02% (At rated output, 1kHz, 8Ω)
0.0015% (Rated output -3dB, 36W output, 1kHz, 8Ω)

Output bandwidth:
5Hz to 40kHz (Both channel drive, 8Ω)
Frequency response:
20Hz to 20kHz, +0 -0.1dB
DC to 100 kHz, +0-3dB
S / N ratio:
115dB (IHF-A)
Residual noise:
100μV
Damping factor:
70 (8Ω)
Input sensitivity / Impedance:
1V / 50kΩ
Load impedance:
Main or Remote - 4Ω to 16Ω
Main + Remote - 8Ω to 16Ω
[Preamp part]
Input sensitivity / Impedance:
Phono 1, 2 - 2.5mV / 27kΩ, 47kΩ / low, high
Tuner, Aux, Tape deck 1, 2 - 200mV / 35kΩ
Total harmonic distortion rate:
0.01%
S / N ratio (IHF-A):
Phono 1, 2 - 88dB / 88dB
Tuner, Aux - 106dB / 100dB
Frequency characteristics:
Phono 1, 2 - RIAA standard curve ±0.2dB, 20Hz to 20kHz
Tuner, Aux - 20Hz to 20kHz, +0 -0.1dB
Phono maximum allowable input:
280mV (1kHz, RMS)
Rated output / impedance:
Pre out - 1V / 1kΩ (Rated), 9V / 1kΩ (Maximum)
Rec out 1, 2 - 200mV
[Tone control]
Bass:
±7.5dB (50Hz)
Treble:
±7.5dB (20kHz)
Filter EQ:
Subsonic - 30Hz, -12dB / oct.
High - 1 kHz, -6dB / oct.
Muting:
-14dB
Loudness control:
+8dB (100Hz, Volume -30 dB)

Power supply:
AC 100V, 50 / 60Hz
Power consumption:
172W
Dimensions (W x H x D):
450 x 140 x 371mm
Weight:
13.5kg
Year:
Around 1977

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