Sony TC-K750ES

Specs
3 heads (R: Permalloy, P: Permalloy, E: S & F head),
2 DC motor (1 capstan quartz DD linear torque BSL motor, 1 reel motor),
full logic,
Sony RM-J701 remote (optional),
4 digit counter,
Dolby B-C NR HX Pro, mpx,

motorized tape loading,

cassette stabilizer,

Nichicon Muse, Panasonic SU, Nippon Chemicon SME components,

No 20-17000 Hz ±3 dB (din),

CrO2 20-19000 Hz ±3 dB (din),
Me 20-21000 Hz ±3 dB (din),
S/N 57 dB (Dolby off), 66 dB (Dolby B), 72 dB (Dolby C),

W&F 0,07% (wrms),

mm 430x135x350, kg 6,9.

Pioneer CT-F2121

Specs
2 heads (R/P: permalloy, E: ferrite),
1 DC motor,

3 digit linear counter,
Dolby B NR, mpx,

L+R mic in,
Nippon Chemicon SL / LR, Sanyo, Panasonic CE components,
No 30-13000 Hz (40-11000 ±3 dB),
CrO2 30-16000 Hz (40-12000 ±3 dB),
S/N 48 dB (Dolby off), 58 dB (Dolby B),

W&F (wrms) 0,12%,
mm 350x142x282, kg 6,6.

Technics SU-VX500 (SU-VX500EG-K)

Specs

2x55W@8Ω/20-20000Hz,

Technics AN7062N (v-amp ic) + SVI3205A (power ic) power(pack) ic,
2x6800µF Panasonic CE filter caps,
Panasonic Pureism, Panasonic AU / M, Nichicon Muse, Elna components,

power amp direct,

phono mm/mc,

mm 430x125x316, kg 8,2.