Nakamichi PA-5E

Specs

2x100W@8Ω/20-20000Hz,

2x160W@4Ω/20-20000Hz,

Sanken 8x A1294 8x C3263 2x C3519A 2x A1386A power transistors,

2x47000µF Nichicon Type I Great Supply filter caps,

US, Shoei, Elna components,

450VA toroidal power transformer,

STASIS circuit (Threshold),
L & R peak indicators,

mm 435x135x368, kg 22,0.
Similar: Nakamichi PA-5.

Sony MDS-JE520

Specs

20bit Hybrid Pulse dac, 

20bit Delta Sigma adc,

Sony CXD8607N dac / filter,

Sony MDM-5A / Sony KMS-260A/J1N transport / pickup, 

Nippon Chemicon ASF / W, Elna components,

ATRAC 4.5, Wide Bit Stream,

1 analog / 1 opt / 1 coax in, 

1 analog / 1 opt out,

L/R digital level meter,

Sony RM-D15M remote,
S/N > 96 dB,
dynamic range > 97 dB,

channel separation > 100 dB,
5–20000 Hz ± 0,3 dB,
harmonic distortion < 0,004%,
mm 430x95x280, kg 3,4.

Harman Kardon HK6200

Specs

 2x45W@8Ω/20-20000Hz,

2x2 A1265N C3182N power transistors,
2x8200µF Panasonic filter caps,
Tk, Panasonic M / MZ components,

8Ω/4Ω speakers out selector,

phono mm,

mm 443x103x361, kg 7,0.