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TRIO KA-8700

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Technic details

Specifications

Type:
Integrated Amplifier
[Rated output (Phono → sp terminal, both channel operation)]
20Hz to 20kHz: 110W + 110W (8Ω)
1kHz:
150W + 150W (4Ω)
115W + 115W (8Ω)
[Total harmonic distortion (8Ω)]
Phono → sp terminal: 0.015% (At the time of a rated output, 20Hz to 20kHz, Volume -20dB)
Tuner, AUX, tape → sp terminal: 0.015% (At rated output, 20Hz to 20kHz)
0.008% (At rated output, 1kHz)
0.008% (At half-rated output, 20Hz to 20kHz)

Cross modulation distortion:
Tuner, AUX, tape → sp terminal: 0.003% (At the time of a rated output, 8Ω, 60Hz: 7kHz = 4: 1)
[Frequency characteristics]
Tuner, AUX, tape → sp terminal (straight DC On): DC to 450kHz, -3dB
Tuner, AUX, tape → sp terminal (Straight DC Off): 18Hz to 450kHz, -3dB
[Output bandwidth (IHF)]
Tuner, AUX, tape → sp terminal: 5Hz to 70kHz (When distortion rate is 0.03%, 8Ω)
Damping factor:
100 or more (Tuner, AUX, tape → sp terminal, DC to 20kHz, 8Ω)
[Input sensitivity / impedance]
Phono1 (MM) → sp terminal: 2.5mV / 50kΩ
Phono2 (MC) → sp terminal: 0.1mV / 100Ω
Tuner, AUX, tape → sp terminal: 200mV / 50kΩ
[Phono maximum allowable input (1kHz, distortion rate 0.015%)]
Phono1 (MM) → rec out: 230mV
Phono2 (MC) → rec out: 9mV
Phono RIAA deviation: 20Hz to 20kHz, ±0.2dB
[S / N ratio (IHF-A)]
Phono1 (MM) → sp terminal: 90dB
Phono2 (MC) → sp terminal: 70dB
Tuner, AUX, tape → sp terminal: 105dB
Output level / impedance tape rec pin:
200mV / 330Ω
[Tone control (Tuner, AUX, tape → sp terminals)]
Bass: ±7.5dB (100Hz)
Treble: ±7.5dB (10kHz)
Loudness control: +9dB (100Hz, tuner, AUX, tape → sp terminal, Volume -30dB)
Transient response rise time:
0.8μs (Tuner, AUX, tape → sp terminal)
Slew rate:
±150V / μs (Tuner, AUX, tape → sp terminal)
[Power AC outlets]
Power switch interlocking: 2 lines (100W)
Power switch non-interlocking: 1 line (400W)

Power supply voltage:
AC 100V, 50 / 60Hz
Rated power consumption:
280W (Electrical Appliance and Material Control Law)
External dimensions (W x H x D):
440 x 153 x 407mm
Weight:
17.5kg
Year:
1978

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