Luxman G-120A

Luxman G-250

1 9 8 0 1980
April
1 9 8 3 april 1983
1 9 8 5 1985

This page isn't really about graphic vs. parametric eq'ing. Nor is it about the Luxman G-120A. Or the Luxman G-250.

This page really is about Luxman and what always brought that brand to various owners between october 1983 and today.

I hadn't planned this but searching today through the first batch of literature loaned by Luxman Europe, I found this typically typical Luxman example.
One example among many others I will soon go through in extenso on a dedicated page of the Miscellaneous section of TVK.
In the meantime, just centered on the G-120A :



The G-120A is a carefully built stereo graphic equalizer with ten center frequencies per channel, all with a Q of 2.3. The circuits are all based on discrete components, low-capacitance caps and precision resistors, instead of off-the-shelf ICs.
To shorten internal wiring, a muting relay switches the bypass / norm / rec signal paths and gold-plated terminals make the european G-120A. Or the american G-120A. Or the G-250.
Yes : the G-250 is a G-120A.

The G-120A was released with matte 1980 looks for Europe and with shiny looks for the US market, with an added wood encosure.
As such, it was recommended to complement the C-120A and M-120A (european versions), the C-120A and M-120A (US versions) or the very different L-450 (or L-480) and T-450 (here).

The later G-250, 1983, has entirely different cosmetics which borrow from components launched after the G-120A original : the L-550 and L-430.
As such, the G-250 was recommended to complement said L-430 and the K-250 (there) or the R-5045 receiver and K-117 (elsewhere).


So : this makes three versions for one optional component. Same component, though, but different times, and different surrounding lineups.

Different times and different surrounding lineups does mean different looks, different faceplates, different knobs, different silk-screening, different literature, different service manuals, different marketing and different catalog publishing. For the very same component : not for a new upgraded version and not for an entirely new equalizer.
Just for the very same component.

Luxman would've had to sell a lot of equalizers to cover the costs mentionned above !

But didn't.

Luxman G-120A, image 1 Luxman G-120A, image 2 Luxman G-120A, image 3
Luxman G-120A specifications
Title Value
Output voltage : 1V (G-120A)
2V (G-250)
5V max (flat position)
THD : 0,005%
IMD : 0,005%
Frequency response : 10Hz...100Khz (± 1,5dB ; G-120A)
10Hz...100Khz (+0 / -1dB ; G-250)
2Hz...70Khz (+0 / -3dB ; G-250)
20Hz...20Khz (+0 / -0,2dB ; G-250)
S/N ratio : > 100dB (flat position, IHF-A, input shorted)
Channel separation : > 80dB (1Khz)
Residual noise : < 0,02mV (flat position)
Bandwidth : Q = 2.3
Center frequencies : 28 / 55 / 110 / 220 / 440 / 880Hz
1,8Khz / 3,5Khz / 7Khz / 14Khz
Maximum variable amount : ± 12dB
Input : 1V / 65kOhm (G-120A)
2V / 65kOhm (G-250)
PC : 20W
Dimensions : 43,8 x 11 x 27cm
Weight : 5,2kg.
page online since : august 2010
page updated : not yet
page type : LGT / KNB
page weight : 199.42 Kb / 0 b
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