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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Pioneer A-60



 Features
Dynamic Power Supply : Improves power efficiency twofold for higher dynamic power during peak passages.
Non-Switching Power Amplifier : Eliminates switching distortion and drastically reduces all other types of distortion.
DC-Servo High-Gain Phono Equalizer : Features low-noise FET input and DC servo, allowing the use of any popular types of cartridges, moving-magnet or moving-coil.
"Line Straight" Switch : Provides  purest possible sound quality by bypassing tone controls and loudness switch.
LED Indicators : For "Line Straight" subsonic filter and input selectors (including tape).



Specifications
Amplifier Section
Power Output:  100 watts per channel (8Ω, from 20 to 20,000 Hz with no more than 0,007% THD)
Continuous Power Output (at 1 kHz):  120 watts per channel (8Ω,  0,007% THD)
Damping Factor:  60 (20 - 20,000 Hz, 8Ω)
Input Sensitivity/Impedance:
Phono MM : 2,5 mV/50 kΩ
Phono MC : 0,2 mV/100 Ω
Tuner, CD/Aux, Tape 1 & 2 : 150 mV/50 kΩ
Phono Overload Level (thd 0,005%, 1 kHz):
Phono MM : 200 mV
Phono MC : 17 mV
Output level/Impedance:
Tape Rec 1 & 2 : 150 mV/2,2 kΩ
Frequency Response:
Phono MM (RIAA Equalization) : 20 Hz - 20 kHz ±0,2 dB
Tuner, CD/Aux, Tape 1 & 2 : 5 Hz - 100 kHz,  +0 -3 dB
Tone Control
Bass : ±10 dB (100 Hz)
Treble : ±10 dB (10 kHz)
Filter
Low (Subsonic) : 15 Hz (-6 dB/oct)
Loudness Contour (Vol. Control at -40 dB) :+6 dB (100 Hz), +3 dB (10 kHz)
Hum and Noise (IHF, short circuited, A network):
Phono MM : 86 dB (2,5 mV)
Phono MC : 70 dB (0,25 mV)
Tuner, CD/Aux, Tape 1 & 2 : 105 dB (150 mV)
Hum and Noise (DIN, continuous power/50 mW):
Phono MM : 74.61 dB
Tuner, CD/Aux, Tape 1 & 2 : 88/62 dB
General (S model)
Power Requirements:  110/120/220/240 V (switchable), 50/60 dB
Power Consumption:  220 W
Dimensions (W x H x D):  420 x 130 x 331 mm (16-9/16" x 5-3/16" x 13-1/16")
Weight:  9,4 kg (20 lb 12 oz)