Luxman L-550X

November
1 9 8 3 november 1983
1 9 8 5 1985

Upgraded version of the L-550 bestseller.

The L-550X is a 550 with a bigga Bando toroidal transformer, partly copper-plated chassis and the appearance of a DAD input label - rather strange since CD had been accepted more than a year before...
Circuit-wise no changes - see the L-550 page for detailed descriptions.

Like the MB300 tube monoblocks, the 550X was launched just after the Alpine sale so the early batches still see Luxman in hometown Osaka, later ones in non-descript "Japan" ; T-Tag is uniformly Alpine.

In Japan, the 550X cost 50,000¥ more than a regular 550 - maybe why it didn't sell too well. But since everybody already had an L-550...

Replaced by the L-560.




Nudies aplenty at the indispensable amp8.com and a real 550X here.

Luxman L-550X, image 1 Luxman L-550X, image 2
Luxman L-550X specifications
Title Value
Class A power output : 2x 50W (8 Ohm, both channels driven, 20Hz...20Khz)
THD : 0,008% (8 Ohm, 20Hz...20Khz, -3dB)
IMD : 0,008% (8 Ohm, -3dB)
Frequency response : 20Hz...20Khz (± 0,2dB, phono MM/MC)
10Hz...100Khz (-1dB, lines)
10Hz...100Khz (-1dB, main-in)
S/N ratio : > 86dB (MM, for 5mV input, IHF-A)
> 80dB (MC, for 250µV input, IHF-A)
> 105dB (lines, IHF-A)
> 105dB (main section, IHF-A)
Inputs : 2mV / 50kOhm (MM)
90µV / 40 or 100 or 300 Ohm (MC)
150mV / 40kOhm (lines)
150mV / 47kOhm (main in)
Outputs : 150mV (pre out)
Bass control : ± 9dB
Bass turnovers : 55 / 77 / 110 / 155 / 220 / 310 / 440 / 620 / 880Hz
Treble control : ± 9dB
Treble turnovers : 620 / 880 / 1,2k / 1,7k / 2,5k / 3,5k / 5k / 7k / 10Khz
Subsonic filter : below 15Hz
High-cut filter : above 9Khz
Linear equalizer :
PC : 310W
Dimensions : 45,3 x 17,4 x 47cm
Weight : 20kg.
List price : 269,000¥
Luxman L-550X : 0 topic
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page online since : may 2012
page updated : not yet
page type : LGT / KNB
page weight : 157.38 Kb / 0 b

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