Pioneer model
SA-500A (1972 -1974) a budget-price sollid-state stereo integrated amplifier
with musical power of up to 44 watts and wide frequency response.
Pioneer's low-priced
stereo components are designed and manufactured to meet the special demands of
the man who is building his system of hi-fi components on a budget. While
usually offering a little less in power and versatility, these Pioner units
spare nothing in terms ofquality engineering and performance. The SA-500A
integrated amplifier is no exception. Using long-life, low-noise silicon
transistors throughout, the SA-500A is featured by a very wide frequency
response and superb signal-to-noise ratio. It gives you music power output of
up to 44 watts (at 4 ohms), and may be used with up to two tape decks, two
turntables, a tuner and one other auxiliary source. The SA-500A can also drive
up to two sets of speaker systems simultaneously or separately. And it's priced
to fit into any stereo budget.
Direct Coupling
Preamplifier Section
So that its dynamic
range is very wide, the equalizer circuit of the SA-500A uses two-stage direct
coupling negative feedback circuit with low-noise silicon transistors. For
professional tone control, the unit offers click-stop-type individual bass and
treble controls that allow you to increase or decrease the audio signal
delivered to the amplifier in measured steps. Thus, signals delivered from the
unit sound the way you want them to.
Power Amplifier
Section
The power amplifier
section of the SA-500A is equipped with quasi-complimentary single ended
push-pull circuit to ensure distortion-free sound reproduction and a wide
frequency response. Music power output of the unit is 44 watts (measured at 4
ohms), more than you'll ever need to fill your music room with spectacular
soild sound. The SA-500A can handle up to two different pairs of speaker
systems, either separately or simultaneously, giving you the extra versatility
of playing a small set of speakers in a room adjacent to your regular music
listening room. The unit also lets you easily compare noe set of speakers with
another, or lets you select the appropriate speaker unit when systems are
placed in different rooms.
Two Phono Inputs
The SA-500A is
equipped with all necessary input terminals to allow you to built a perfect
components system. It has two sets of phono input terminals in addition to a
tuner and an auxiliary terminal. You
may, if you wish, connect two turntables simultaneously. Or you may also use
the jacks provided to compare two different cartridges or turntables.
Two Tape Deck
Terminals
The SA-500A has two
pairs of Tape Rec and Monitor terminals so that you may operate two tape decks
simultaneously choosing from an open-reel deck, a cassette deck or an 8-track
cartridge tape deck. This feature permits easy tape-to-tape duplicating.
Specifications
Music
Power Output (IHF): 44 watts at 4 Ω; 36watts at 8Ω
Continuous
Power Output (each channel driven): 16
watts/16 watts at 4Ω; 13 watts/13 watts at 8Ω
Continuous
Power Output (Both Channel Driven): 12
watts + 12 watts at 4Ω; 10 watts + 10 watts at 8Ω
Harmonic
Distortion: Less than 0,5% (continuous
power output)
IM Distortion: Less than 0,7% (continuous power output)
Power
Bandwidth (IHF): 20 to 40,000 Hz (8Ω, 0,5% THD)
Frequency Response
(Aux): 30 to 50,000 Hz +1 dB -2 dB
Input
Sensitivity/Impedance (1kHz for rated output):
Phono
1 Mag : 2,5 mV/50 kΩ
Phono
2 Mag : 2,5 mV/50 kΩ
Tuner
: 200 mV/100 kΩ
Aux 1,
2 : 200 mV/100 kΩ
Tape
Monitor 1, 2 : 200 mV/100 kΩ
Recording Output:
Tape Rec 1, 2 (pin jack) : 200 mV
Tape Rec (DIN
connector) : 30 mV
Controls:
Bass : -11 dB, +12 dB ( at 100 Hz)
Treble : -10
dB, +9,5 dB (at 10 kHz)
Loudness Contour :
+10 dB/100 Hz; +5,5 dB/10kHz (with
volume control set at -40 dB)
Phono Equalization
Curve: RIAA standard
Hum and Noise (IHF):
Phono : more than 75
dB
Tuner, Aux : more
than 90 dB
Channel Separation
(IHF):
Phono : more than 50
dB
Tuner, Aux : more
than 55 dB
Speaker
Impedance : 4 Ω to 16 Ω
Damping
factor: 40 (8Ω, 1kHz)
Power
Requirements: 110, 120, 130, 220, 240 V
AC, 50/60 Hz
Power
Consumption: 75 watts Max
Dimensions (W x H x
D): 330 x 118 x 316 mm ( 13" x
4-5/8" x 12-7/16")
Weight: 5,5 kg (12 lb 2 oz ) net