Luxman - K-113 - No Reserve - Audio-cassette deck

Everything works fine; the only issue is that when the music isn’t playing you can hear the drive knocking a little.
Tape-deck made in Japan. Years of manufacture: 1981 - 1984
Frontloading 2-Head Cassette Deck with Dolby B Noise Reduction.
Heads: 2 heads R/P x1 (Hexalam), erace x1 (doublegap ferrite)
Motor: DC Servo
Single Capstan System
Wow & Flutter: no more than 0.06%
Signal-to-Noise Ratio:
better than 57dB (Dolby NR off) metal tape
better than 62dB (Dolby NR on) metal tape
Frequency Response:
20Hz-19kHz (metal tape)
20Hz-18kHz (Chrome tape)
20Hz-16kHz (LH tape)
Distortion: no more than 0.7% (LH, 1kHz, 0dB)
Input Sensitivity:
Line - 80 mV
Mic - 0.25 mV
Output Level:
line - 500mV
Headphone - 1 mW (8 Ohms)

438 x 109 x 275 mm