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Luxman L-550

Duo Beta Circuit/S Stereo Integrated Amplifier (1982-85)

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Luxman L-550


Power output: 50 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 100kHz

Total harmonic distortion: 0.005%

Input sensitivity: 0.08mV (MC), 1.6mV (MM), 220mV (line)

Signal to noise ratio: 80dB (MC), 84dB (MM), 110dB (line)

Dimensions: 453 x 460 x 174mm

Weight: 18kg


service manual   English -

instruction/owners manual   English Deutsch Francais - frank1965

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re: L-550

I am fortunate to own one. Bought it new way back in 1984.
From the Classic Golden period of Luxman before the take
over by Alpine. It was also before Luxman earned its late but
deserved respect and admiration in the West. It has been
known in Asia for many years.

Solidly built, handsomely designed, the unit is still working
its magic with sonic purity. Pure Class A, single staged, the
heat generated warms your utility bill pretty well but it is
worth it. Even the relative stiff price of its acquisition is
worth it.

The integrated Luxman pre-amp section tends to be sweet
and pleasing for those who like analog and tube amplification
that produces a very musical sound.
With its versatile feature, I prefer bypassing the pre-amp and
use the main amp for a more revealing "as live" presentation.
Recordings are amplified with mirror image fidelity. Use of the
main amp section alone highlights the very neutral character
or purity of the sound reproduced.

As you can read, it is a joy and a wonderful experience for
me to own the unit. With irony the equipment becomes that
transparent and it is all about the music that you hear. Purity of
Sound for the Love of Music.

re: L-550

Apart the fact, that the 550 is a fantastic musically amplifier that plays in the league of the best pre+power-combie's I don't know another highend amplification device that offers the versatility of the 550 with two separated phono entries, double tapedeck in/out a.s.o. on the backside AND a third phono entry with groundscrew and a third tape in/out on the FRONT side!! (beside headphones jack and pre-heat button!!)
This gives You the wonderful possibility to connect quickly an external device to your system (turntable, cd-player, tape or what-else) without touching your wires on the backside.
Such a rare treasure must be kept for evidence what mankind once was able to do!
If You should have a technical problem, there is a nice man in Germany who called his firm "luxman forever"

hifiguy's picture

The Original L-550, a great

The Original L-550, a great amp with great dynamics, I'm told was the best part of a years av wage back in 81'.
I see it's been re-released as a Mk 11, it'd be nice to do a comparison sometime.
Buy one of these amps old or new before they outlaw them because of power usage, I think most class A amps on the market run at around the 500 watt mark.

Luxman L-550

Thanks for the contribution!

I can't afford one in 80s.
Is it possible to reproduce one?


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