Pioneer SA-9900 

Японский топовый усилитель Pioneer SA-9900. Год выпуска аппарата 1975. Стоимость на момент производства составляла 185,000 йен.
Спецификация:
Model Stereo Integrated Amplifier
Power amplifier section
Circuit system Two-stage three-step Darlington parallel push-pull-flops pure complimentary OCL differential
Effective output
(Both ch driven, 20Hz ~ 20kHz) 110W +110 W (4Ω)
110W +110 W (8Ω)
Harmonic distortion (20Hz ~ 20kHz) 0.1% or less (at the time of an effective output)
(55W output, 8Ω) 0.04% or less
(1W output, 8Ω) 0.04% or less
Intermodulation distortion 0.1% or less (at the time of an effective output)
(55W output, 8Ω) 0.04% or less
(1W output, 8Ω) 0.04% or less
(IHF, both ch driven) output bandwidth 5Hz ~ 40kHz (0.1% distortion)
Frequency characteristic 10Hz ~ 80kHz +0-1dB
Input sensitivity / impedance Power amp in: 1V/50kΩ
Output terminal Speaker A · B: 4Ω ~ 16Ω
Speaker A + B: 8Ω ~ 16Ω
Headphone: 4Ω ~ 16Ω
Damping factor More than 30 (20Hz ~ 20kHz)
S / N (IHF, A network, a short circuit) 110dB or more
Preamplifier
Circuit system Equalizer amplifier: 2 positive and negative power, single-stage three-step hardwired-connection Class-A SEPP FET differential
Control amplifier: 2 positive and negative power, single-stage three-step hardwired-connection differential FET
Input sensitivity / impedance Phono1: 2.5mV/50kΩ
Phono2: 2.5 ~ 10mV/35kΩ, 50kΩ, 70kΩ, 100kΩ
Tuner, Aux1, 2, Tape PB1, 2:150 mV/50kΩ
Phono maximum permissible input
(0.1% THD, 1kHz) Phono1: 500mV
Phono2: 500mV ~ 1.0V
Output level / impedance Tape Rec1, 2:150 mV
Pre out: 2V/1kΩ
Harmonic distortion (20Hz ~ 20kHz) 0.05%
Frequency characteristic Phono (RIAA deflection): 30Hz ~ 15kHz ± 0.2dB
Tuner, Aux, Tape PB: 7Hz ~ 40kHz +0-1dB
Tone control 1.5dB step Bass sub: ± 4.5dB (50Hz)
main: ± 7.5dB (100Hz)
Treble sub: ± 4.5dB (20kHz)
main: ± 7.5dB (10kHz)
Filter Low: 15Hz, 30Hz, 12dB/oct
High: 8kHz, 12kHz, 12dB/oct
Muting 0,-15dB,-30dB
S / N (IHF, A network,
Short circuit) Phono: 70dB or more
Tuner, Aux, Tape PB: 95dB or more
General
The semiconductor used Transistor: 74 pieces
FET: 10 pieces
Other diode: 33 pieces
AC outlet Power switch interlock: Two lines
Power switch breakaway: 1 system
Power-supply voltage AC100V, 50Hz/60Hz
Power consumption 270W (rated)
730W (maximum)
External dimensions 165 × depth 403mm height width 420 ×
Weight 20.0kg