JVC KD-10

Specs
2 heads,
1 motor, 

3 digit mech counter,
Dolby NR,
Fe ??-??000Hz ±?dB,
CrO2 ??-??000Hz ±?dB,
S/N --dB (Dolby on),
W&F (wrms) -,--%.
mm ---x---x---, kg -,-.

Pioneer CT-300

Specs
2 heads,
1 motor, 

IC Logic transport,
3 digit counter,
Dolby NR,
Fe 20-17000Hz ±3dB (-20VU),
CrO2 20-18000Hz ±3dB (-20VU),
S/N 68dB (Dolby on),
W&F (wrms) 0,05%.
mm 420x99x327, kg 4,7.

Summit Microline MSS 4000 (outside only)

Specs

4-way configuration,

closed box,

paper cone woofer --- 140mm, inverted paper surround,

dome midrange P-MT 50/2 --mm,

dome tweeter MHT 3018/1 --mm,

dome supertweeter --mm,

70W@4-8Ω,
30-25000 Hz ± ? dB,
sens. -- dB,
mm 210x320x170, kg 5,7.