JVC DD-5

Specs
2 heads (R/P: Sen alloy, E: 2-gap ferrite),
2 DD motors (1 Pulse-Servo dd for capstan, 1 dc for reel), 

full logic / soft touch,
3 digit counter,
Dolby B NR, ANRS, super ANRS,

mic in,

wired remote,

Tosin TS, Tosin LT components,

No 20-17000 Hz (-20dB vu),
CrO2 20-18000 Hz (-20dB vu),
Me 20-18000 Hz (-20dB vu),
S/N 60 dB (Me), 65 dB (Dolby B / ANRS, 1 kHz), 70 dB (Dolby B / ANRS, 5 kHz),

W&F 0,021% (wrms),
mm 420x110x290, kg 6,0.

Dual C 844

immagine Dual

Specs
3 heads (2 Cobalt Amorphous, 1 Ferrite),
2 motor, 

2 speed (9.52 cm/s, 4.76 cm/s),
full logic,
4 digit counter,
Dolby B-C NR, mpx,

mic in,

Elna, Marcon, Tk components,

No 20-17000 Hz,
CrO2 20-18000 Hz,
Me 20-20000 Hz,
S/N 67 dB (Dolby B, No), 74 dB (Dolby C, No), 76 dB (Dolby C, Me),

W&F 0,035%.
mm 440x112x355, kg -,-.

Technics RS-M216

Specs
2 heads (1 MX, 1 ferrite),
1 motor,
soft touch,
3 digit counter,
Dolby B NR, mpx,

mic in,
Panasonic components,

No 20-15000 Hz,
CrO2 20-16000 Hz,
Me 20-17000 Hz,
S/N 56 dB (5 kHz, Dolby off), 66 dB (CrO2, Dolby B),

W&F 0,05%.
mm 430x109x233, kg 4,0.

Denon PMA-750

Specs
2x80W@8Ω/20-20000Hz,
2x2 Sanken 2SA1187 2SC2838 power transistors,
2x15000µF Nippon Chemicon filter caps,
Nippon Chemicon SME components, tantalum caps,

phono mm/mc,
mm 434x132x407, kg 12,0.

Pioneer HPM-500

Specs
3-way configuration,
bass reflex via front-firing port,
polymer graphite cone woofer Pioneer 25-750A 250mm, foam surround,
polymer graphite cone midrange Pioneer 45-717A 45mm, textile surround,
high polymer film tweeter Pioneer HP-018A-5,

high range level control,
40-80W@8Ω,
35-50000Hz ±?dB,
sens. 91dB.
mm 325x570x317, kg 12,2.

Technics RS-M240X

Specs
2 heads,
1 motor,
3 digit counter,
Dolby NR, dbx II, dbx disc,

micro in,
Fe 30-15000Hz din,
Me 20-18000Hz ±3dB, 30-17000Hz din,

S/N 67dB (Dolby NR), S/N 91dB (dbx),
W&F (wrms) 0,048%.
mm 430x110x250, kg 4,65.