National SA-720

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Specs

2x20W@8Ω/20-20000Hz,

2x2 Matsushita 2SB449 power transistors,
1x2200µF Matsushita filter cap,
Matsushita components,

mm 450x130x370.

Luxman SQ707 II

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Specs
2x30Wpc@8Ω/20-20000Hz,
4x Sanken 2SD92 power transistors,
1x2200µF Nippon Chemicon filter cap,
Nippon Chemicon SL components,
phono mm,
mm 375x125x227, kg 8.

Luxman SQ700X

Specs

2x25W@8Ω/20-20000Hz,
2x2 Nec 2SD155 2SA616 power transistors,
2x2200µF Nippon Chemicon filter caps,
Nippon Chemicon SL components,

phono mm,

pre-out,
mm 373x125x227, kg 7,8.