The Sony TC-K22
Stereo Cassette Deck provides the essentials of high-fidelity performance at a
suprisingly attractive price. Incorporating Sony's advanced magnetic,
mechanical, and electronic technology, the K22 achieves accurate reproduction
of musical sound.
Super-High-Density
Head
Tape deck
performance begins with the record/play head. The K22 incorporates Sony's
Super-High-Density (SD) permalloy head. The SD head provides high maximum flux
density, for wide dynamic range when recording. High flux density is
particulary important for the best performance with metal particle tape. In
playback, the SD head's excellent linearity with small signals assures low
distortion. Unlike conventional permalloy heads. Sony's SD formulation is
remarkably resistant to wear. In addition to the Sd boasts a newly developed
four-gap ferrite erase head. The four-gap design produces a strong, focused
erasing field that penetrates the tape coating. The result is more complete
erasure than the conventional, single-gap erase head, even with the difficult-to-erase
metal tapes.
Dolby Noise
Reduction
As you would expect,
the K22 incorporates the Dolby noise reduction system, providing
signal-to-noise ratio improvement of up to 10 dB at 5 kHz and above. A built-in
filter prevents the standard 19 kHz FM pilot signal from interfering with the
Dolby system when you record FM stereo broadcasts.
DC Servo Tape Drive
Because constant
tape speed is vital to sonic clarity, teh TC-K22 incorporates Sony's Tri-Duty
DC Servo Motor. As the motor turns a voltage generator reports any speed
variations to servo-control electronics, which provides instantaneous
correction. Thus, the K22 is less susceptible to the speed drift that commonly
occurs as a cassette deck warms up. And the K22 maintains correct speed, even
when the mechanical load on the drive system varies. In these respects, the
TC-K22 is superior to many comparably-prieced cassette decks. The Tri-Duty
motor is carefully sheathed in aluminum, steel, and rubber to dampen vibrations
that might interfere with smooth tape travel. The motor, together with DC servo
control and an oversize, dynamically balanced flywheel, assure stable tape
travel, with wow and flutter of only 0,07% (WRMS).
For smooth
transition to fast-forward and rewind modes, the Tri-Duty motor works in
conjunction with a magnetic clutch assembly. Using the K22, you may go from
play or fast-forward directly into rewind, and from rewind directly to
fast-forward, without damage to the deck or the tape.
Precise Controls,
Convenient Features
The layout and
design of the TC-K22 permit simple, direct control of recording and playback. A
four-position tape selector switch gives you the proper bias, record and
playback equalization for each type of cassette, including the new metal
particle tapes. Dual-concentric controls provide for quick adjustment of record
levels. Levels are displayed on large, well-lit meters,accurately calibrated
from -20 to +5 VU. At the end of tape, a motion sensor triggers the All-Mode
Auto-Stop system, which disengages the heads, pinch roller, and drive capstan
to protect the tape and mechanism.
Specifications
TC-K22
Fast-Forward/Rewind
Time (C-60): 90 sec.
Wow and Flutter:
0,07% (WRMS); 0,20% (DIN 45507)
Frequency Response
(-3 to +3 dB, Re: -20 dB):
Metalic Tape : 30 -
15,000 Hz
FeCr Tape : 30 -
15,000 Hz
EHF Tape : 30 -
14,000 Hz
SHF Tape : 30 -
12,000 Hz
Frequency Response
at Re 0 dB:
Metallic Tape : 30 -
12,500 Hz
Signal-to-Noise
Ratio (Dolby NR Off, Re: 3% THD, Peak, IHF-A weighted):
Metallic Tape : 58
dB
FeCr Tape : 58 dB
EHF Tape : 56 dB
SHF Tape : 52 dB
Improvement with
Dolby NR On : Up to 5 dB at 1 kHz, 10 dB at 5 kHz or Above
Total Harmonic
Distortion (1 kHz, Re: 0 dB Record Level):
Metallic Tape : 1,0%
FeCr Tape : 1,0%
Crosstalk (1 kHz,
tracks): 60 dB
Separation (1 kHz,
channels): 35 dB
Erasure (400 Hz,
incl. Mettallic Tape): 60 dB
Bias Frequency:
105 kHz
Meter Range:
-20 , +5 dB
Line Input
Sensitivity/Impedance: 77,5 mV/50 k Ohms
Mic Input
Sensitivity/Impedance: 0,25 mV/Low
Line Output: Level,
Fixed: 435 mV
Line Output: Load
Impedance, Nominal: 50 k Ohms
Load Impedance,
Minimum: 10 k Ohms
Headphone Output
Level: 30,9 mV
Nominal Headphone
Impedance : 8 Ohms
Power Requirements:
AC 120 V, 60 Hz
Power Consumption:
10 W max
Dimensions (W x H x
D): 430 x 105 x 290 mm (17" x 4-1/8" x 11-3/8")
Weight: 4,5 kg
(9 lbs, 15 oz)