South-Korean OEM Manufacturer Seoum was the company that the Lenco R 600 Receiver developed and produced in 1978. When they arrived in Burgdorf they went through their final check where it got its Lenco sticker on the rear side of the unit. The Lenco R 600 was part of the series 600

Many of the units failed the QC in Switzerland and needed repair before they could be sold. I was also in the Netherlands in February 1980 to check and fix more than 40 units for Naho BV - the distributor got them directly from South Korea - most of them needed to be repaired !

Lenco R 600 Receiver

Output power:

Frequency Response:


Input sensitivity AUX input:

S/N Ratio:

2 x 52 W into 8 Ω

10 Hz - 40’000 Hz

< 0.1 % @ 2 x 52 W / 1 kHz

150 mV / 470 kΩ

>60 dB AUX Input

Lenco R 600 Rear side

Lenco R 600 Inside top

Reflects somehow the state of Lenco at its end

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Last Update: 15.09.2021


- Added the Lenco 610 in the portable section


- Added the Lenco 811 POP stereo in the portable section