Technics
Quartz Synthesizer FM/AM Stereo Tuner Preamplifier ST-K 808
Specifications
Amplifier
Section
Total
Harmonic Distortion: 0,05%
Input
Sensitivity/Impedance:
Phono
: 2,5 mV/47 k Ω
Aux
: 150 mV/27 k Ω
Tape
Rec/Play : 180 mV/27 k Ω
Phono Max.
Input Voltage (1 kh, RMS): 95 mV
Signal-to-Noise
Ratio (rated output , 4 Ω):
Phono : 75 dB (IHF-A, 78 dB)
Tuner, Aux,
Tape : 85 dB (IHF-A, 97 dB)
Signal-to-Noise
Ratio (26 dB rated output, 4 Ω):
Phono : 62
dB
Tuner, Aux,
Tape : 63 dB
Frequency
Response:
Phono : RIAA standard curve, 30 Hz - 15 kHz (±1,0 dB)
Tuner, Aux,
Tape : 10 Hz - 50 kHz (- 1 dB); 20 Hz -
20 kHz (±0,4 dB)
Tone
Controls
Bass : +10
dB: -10 dB at 50 Hz
Treble
: +10 dB: -10 dB at 20 kHz
Subsonic
Filter: 30 Hz, 6 dB/cot
High-Cut
Filter: 7 kHz, 6 dB/oct
Loudness
Control (volume at 30 dB): 50 Hz, - 9 dB
Output
Voltage:
Output
: rated 0,5 V/600 Ω; max 10 V/600 Ω
Tape
Rec/Play : 30 mV/82 k Ω
Channel
Balance, Aux 250 Hz-6,300 Hz : ±1,0 dB
Channel
Separation, Aux 1 kHz : 55 dB
FM Tuner
Section
Frequency
Range: 87,5 - 108,0 MHz
Sensitivity: 1,9 µV (IHF, usable)
S/N 30
dB : 1,9 µV (300 Ω); 1,3 µV (75 Ω)
S/N 26
dB : 1,7 µV (300 Ω); 1,2 µV (75 Ω)
S/N 20
dB : 1,5 µV (300 Ω); 0,9 µV (75 Ω)
IHF 46 dB
Srereo Quieting Sensitivity [mono/stereo]:
0,15% / 0,3%
Signal-to-Noise
Ratio [mono/stereo]: 67 dB (73 dB, IHF)
/ 63 dB (68 dB, IHF)
Frequency
Response: 20 Hz - 15 kHz, +0,5 dB, -1,5
dB
Alternate
Channel Selectivity: 75 dB
Capture
Ratio: 1,0 dB
Image
Rejection at 98 MHz: 68 dB
IF Rejection
at 98 MHz: 85 dB
Spurious
Response Rejection at 98 MHz: 95 dB
AM
Suppression: 55 dB
Stereo
Separation:
At 1 kHz :
45 dB
At 10 kHz
: 35 dB
Carrier Leak
At 19 kHz
: 30 dB (35 dB, IHF)
At 38 kHz
: 45 dB (50 dB, IHF)
Channel
Balance (250 Hz - 6,300 Hz): ±1,0 dB
Limiting
Point: 1,2 µV
Power
Bandwidth:
IF Amplifier
: 180 kHz
FM
Demodulator : 1000 kHz
Antenna
Terminals: 300 Ω (balanced) and 75 Ω
(unbalanced)
AM Tuner
Section
Frequency
Range: 522 - 1611 kHz
Sensitivity
(S/N 20 dB): 30 µV, 300 µV/m
Selectivity
(±9 kHz): 55 dB
Image
Rejection at 1,000 kHz: 45 dB
IF rejection
at 1,000 kHz: 45 dB
Timer
Section
Clock: Quartz-Lock Type, 24-hour indication
Precision: within 0 sec - 10 sec monthly (at 25°C)
Functions: 24-hour programmable; every day (2 times),
once only (1 time)
Programmable
Content: on off of program source (FM,
AM, Phono, Aux)
Setting
Intervals: 1 minute,23 hours, 59 minutes
(at 1-min. Intervals)
Prioryty
Order: once, every day 2, everyday 1
Memory
"back-up": About 3 months
(without AC power)
General
Power
Supply: 110, 120, 220, 240 V AC, 50/60
Hz
Power
Consumption: 20 W
Batteries
for memory back-up (optional): 3 x AA
size batteries DC 4,5 V
Dimensions
(W x H x D): 430 x 75 x 310 mm
(16-15/16" x 2-15/16" x 12-7/32")
Weight: 4,8 kg (10,6 lb)
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