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AUDIO AMPLIFIER SECTION
Maximum Power Output:
Front: 40 watts per channel
Rear: 40 watts per channel
Continuous Power Output (RMS):
Front: 16 watts per channel into 4Ω, 40
to 20,000 Hz at no more than 0.8%
total harmonic distortion.
Rear: 16 watts per channel into 4Ω, 40
to 20,000 Hz at no more than 0.8%
total harmonic distortion.
Load Impedance: 4Ω (4 to 8Ω allowance)
Tone Control Range
Bass: ±10 dB at 100 Hz
Treble:±10 dB at 10 kHz
Frequency Response: 40 to 20,000 Hz
Signal-to-Noise Ratio: 70 dB
Line-Out Level/Impedance:
KS-FX740R/FX640R: 2.0 V/20 kΩ load
KS-F540R: 1.0 V/20 kΩ load
TUNER SECTION
Frequency Range
FM: 87.5 to 108.0 MHz
AM: (MW) 522 to 1,620 kHz
(LW) 144 to 279 kHz
[FM Tuner]
Usable Sensitivity: 11.3 dBf (1.0 µV/75Ω)
50 dB Quieting Sensitivity:
16.3 dBf (1.8 µV/75Ω)
Alternate Channel Selectivity (400 kHz):
65 dB
Frequency Response: 40 to 15,000 Hz
Stereo Separation: 30 dB
Capture Ratio: 1.5 dB
[MW Tuner]
Sensitivity: 20 µV
Selectivity: 35 dB
[LW Tuner]
Sensitivity: 50 µV
CASSETTE DECK SECTION
Wow & Flutter: 0.11% (WRMS)
Fast-Wind Time: 100 sec. (C-60)
Frequency Response (Dolby NR-OFF):
30 to 16,000 Hz (Normal tape)
Signal-to-Noise Ratio: (Normal tape)
(Dolby NR-ON): 65 dB (ONLY FOR KS-
FX740R)
(Dolby NR-OFF): 56 dB
Stereo Separation: 40 dB
GENERAL
Power Requirement
Operating Voltage: DC 14.4 volts (11 to 16
volts allowance)
Grounding System: Negative ground
Allowable working temperature:
0 °C to +40 °C
Dimensions (W x H x D)
Installation Size: 182 x 52 x 150 mm
Panel Size: 188 x 58 x 14 mm
Mass: 1,4 kg (excluding accessories)
Design and specifications subject to change
without notice.
SPECIFICATIONS
EN.29-31KS-FX740R/640/540R[E]/F 98.11.6, 3:40 PM31