Integrated Stereo
Amplifier
The Sony TA-F5A
integrated amplifier is designed for listeners who appreciate excellent sound.
And an unusual degree of operating convenience.
Preamplifier/Control
Section
The F5A incorporates
a newly-designed phono EQ amplifier for low-noise, wide-dynamic-range
reproduction. The direct coupled amp, together with an FET/DC negative-feedback
circuit, maintains high operating stability. In addition, special capacitors,
made of polypropylene film, are employed in the NF-network to ensure ultra-low
distortion with voltage increase. Overall results include RIAA equalization
accuracy within ±0,2 dB.
An equivalent level
of accuracy is provided by the F5A's sophisticated features. Which include a
four-gang stepped-attenuator volume control - with 41 detent steps - for
accurate level adjustment, with no tracking error between channels.
Negative-feedback, stepped-attenuator bass and treble controls are provided for
precise frequency contouring; with mid-point "defeat" positions that
allow absolutely flat response. There's also a high filter plus a sub-sonic
filter that cuts low-frequency components below 15 Hz.
Connections for
tuner, turntable, auxiliary source and two tape decks allow truly versatile
system functioning. And tape monitor/dubbing facilities let you listen to all
program sources during the dubbing process.
Power Amplifier
Section
The direct-coupled
DC power amplifier section utilizes a new monolithic IC for its dual-FET input
stage. This is followed by a Class B driver stage and single-ended push-pull
final stage. In itself, this amplifier design yields wide-band response, low distortion,
high phase linearity and excellent transient response. But performance is
improved even further through the Sony PPS system.
Pulse Power Supply -
PPS
The advanced new PPS
system reduces voltage fluctuations to 7% or less, vs the 15% of conventional
amplifiers. And this means minimal stereo channel interaction through the
power-supply circuit. Instead of going directly through a transformer and then
on to rectifiers, with PPS, the incoming AC 120 V, 60 Hz line current is first
rectified. The rectified current then drives a DC-to-DC converter, which
operates at 20 kHz, instead of he usually 60 Hz. The 20 kHz frequency means the
PPS transformer can be small efficient, since the high frequency requires fewer
transformer windings. This in turn, means less DC resistance within the
windings. With less resistance, there's less voltage drop with increasing power
demands. Which results in better power performance - especially with
low-frequency transients. And since the PPS never handles 60 Hz line frequency,
hum is virtually eliminated.
For accurate power
monitoring, the F5A features two large meters, which indicate output levels in
watts per channel - from 0,01 to 100 watts. Other advanced amplifier features
include large, cast aluminum heat sinks for cool operation, plus comprehensive
amplifier/speaker protection circuits.
Features:
Direct-coupled DC
power amplifier section , with newly developed monolithic IC and
true-complementary symmetry, single-ended push-pull output stage
Sony Pulse Power
Supply (PPS) assures high operating stability, minimal power-supply interaction
- for low noise and distortion, excellent transient response.
Newly-designed,
direct coupled phono EQ amplifier, with
DC negative-feedback for high stability.
Connections for
tuner, phono, auxiliary source, 2 tape decks
Tape monitor/dubbing
facilities for 2 decks, with provision for listening to all program sources -
including tape - during the dubbing process.
Professional-quality,
stepped-attenuator volume control
Negative-feedback,
stepped-attenuator bass and treble controls, with defeat position for
absolutely flat response with tone controls switched out of the circuit.
Large, easy-to-read
power meters for accurate power-output level monitoring, as well as easy
channel balancing
High filter and
sub-sonic filter
Illuminated,
pushbutton input selectors for convenient program-source selection
Rugged, cast
aluminum heat sinks for cool operation
Advanced
amplifier/speaker protection circuitry.
Connections for 2
pairs of speakers
Wooden side panels
included
Specifications
Power Amplifier
Section
Continuous Power
Output (RMS):
70 watts per channel, minimum RMS at 8 Ω from 20 Hz to 20 kHz
with no more than 0,04% T.H.D.
Total Harmonic
Distortion: 0,04% at rated output
Intermodulation
Distortion: 0,01% at rated output
Frequency
Response: 3 Hz - 70,000 Hz +) dB, -1 dB
Damping Factor: 40 at 8 Ω
Signal-to-Noise
Ratio (A weighted): 100 dB
Headphone Output: 20 mW (at 8
Ω )
Preamplification
Section
Input
Sensitivity/Impedance
Phono : 2,5 mV/ 50 k Ω
Tuner, Aux, Tape 1, 2 : 150
mV/50 k Ω
Maximum Input
Capability (1 kHz):
Phono : 250 mV
Output
Level/Impedance
Rec. Out 1, 2 : 150 mV/4,7 K Ω
Total Harmonic
Distortion : 0,02%
Intermodulation
Distortion (60 Hz : 7 kHz = 4 : 1):
0,008%
Frequency Response
Phono : RIAA ±0,2 dB
Tuner, Aux, Tape 1,
2 : 3 Hz - 70,000 Hz +0, -1 dB
Tone Control Range
Bass : ±10 dB at 60 Hz
Treble : ±10 dB at 25 kHz
Filters
High : 6 dB/oct. Above 9 kHz
Low ; 6 dB/oct. Below 15 Hz
Signal-to-Noise
Ratio (A-weighted)
Phono (re. 2,5 mV
input) : 85 dB
Tuner, Aux, Tape 1,
2 : (re. 150 mV input) : 100 dB
General
Semiconductors: 4 ICs; 2 FETs; 42 Transistors; 36 Diodes
Power
Requirements: AC 120V, 60 Hz
Power
Consumption: 125 W
AC Outlets: 2 switched (100 W total); 1 unswitched (50 W
max)
Dimensions (W x H x
D): 17-1/8" x 5-3/4" x
14-5/8"
Weight: 18 lbs 1 oz
