History of Luxman Amplifiers-
Integrated Amp:
5L15, 2x80W, (1978-80)
L-1, 2x35W, (1980-83)
L-2, 2x33W, (1980)
L-3, 2x42W, (1980)
L-4, 2x55W, (1980)
L-5, 2x60W, (1980)
L-10 2x55W, (1980)
L-11, 2x100W, (1980)
L-30, 2x30W, (1976-78)
L-31, 2x38W, (1976-78)
L-45A, Duo-Beta, 2x65W, (1981-82)
L-55A, Duo-Beta, 2x80W, (1981-82)
L-58A, Duo-Beta, 2x100W, (1980-82)
L-80, 2x35W, (1977-78)
L-80V, 2x50W, (1977-78)
L-85V, 2x80W, (1977-78)
L-100, 2x110W, (1976-78)
L-113A, 2x40W, (1981-83)
L-114A, 2x48W, (1981-83)
L-116A, 2x70W, (1981-83)
L-120A, 2x110W, (1981-83)
L-200, Duo-Beta, 2x40W, (1982-84)
L-205, Duo-Beta, 2x30W, (1985)
L-210, Duo-Beta, 2x45W, (1982-84)
L-215, Duo-Beta, 2x45W, (1985)
L-220, Duo-Beta, 2x50W, (1982-84)
L-225, Duo-Beta, 2x50W, (1985)
L-230, Duo-Beta, 2x63W, (1982-84)
L-235, Duo-Beta, 2x63W, (1985)
L-309, 2x75W, (1975-76)
L-405, Duo-Beta, 2x80W, (1984-85)
L-410, Duo-Beta, 2x75W, (1982-85)
L-430, Duo-Beta, 2x105W, (1982-85)
L-435, Duo-Beta, 2x40W, (1984-85)
L-510, Duo-Beta/S, 2x100W, 2x8W pure class A, (1982-85)
L-525, Duo-Beta/S, 2x110W, (1985)
L-530, Duo-Beta/S, 2x120W, 2x15W pure class A, (1982-85)
L-550, Duo-Beta/S, 2x50W pure class A, (1982-85)
L-560, Duo-Beta/S, 2x50W pure class A, (1985)
LV-90, 2x45W, (1986-87)
LV-100, 2x55W, (1986-87)
LV-101, 2x95W, (1986-87)
LV-102, 2x110W, (1986-87)
LV-103, Brid configuration, 2x60W, (1984-87)
LV-105, Brid configuration, 2x80W, (1984-87)
LX-33, Vacuum Tube, 2x30W, (1980-83)
LX-104, 2x120W, Servo Face, (1983-84)
SQ-38 FD, Vacuum Tube, 2x30W, (1976-77)
SQ-505X, 2x30W, (1975-76)
SQ-507X, 2x50W, (1974-76)
Power Amp:
5M20, 2x100W, (1978-80) (=5M21 without VU-meters)
5M21, 2x100W, (1978-80)
B-12, Mono-block, 1x150W, (1980)
M-02, Duo-Beta(Duo-Beta/S from 84), 2x150W(320W mono), (1983-85)
M-05, Duo-Beta/S, 2x105W pure class A(300W mono), (1983-85)
M-12, 2x80W, (1980)
M-120A, Duo-Beta, 2x120W, (1980-83)
M-150, 2x75W, (1975-76)
M-300, Duo-Beta, 2x40W pure class A, (1981-83)
M-2000, 2x120W, (1977)
M-4000, 2x180W, (1977-78)
M-4000A, Duo-Beta, 2x180W, (1980-83)
M-6000, 2x300W, (1976-77)
MQ-50, Vacuum Tube, 2x50W, (1983-85)
MQ-60, Vacuum Tube, 2x30W, (1976)
MQ-68C, Vacuum Tube, 2x30W, (1982-83)
MQ-70, Vacuum Tube, 2x45W, (1982-83)
MQ-80, Vacuum Tube, 2x40W, (1976)
MQ-3600, Vacuum Tube, (1980-81)
MX-100, Duo-Beta/S , 2x150W(320W mono), (1984)
Z-501, Duo-Beta, 2x25W pure class A, 2x100W(AB), 300W(mono AB), (1980-81)
Z-504, Duo-Beta, 2x60W pure class A, 2x200W(AB), 600W(mono AB), (1980-81)
Pre Amp:
5C50, (1978-80)
C-02, Duo-Beta(Duo-Beta/S from 84), (1983-85)
C-05, Duo-Beta/S, (1983-85)
C-12, (1980)
C-120A, Duo-Beta, (1980-83)
C-300, (1981-83)
C-1000, (1976-77)
C-1010, (1978)
C-5000A, Duo-Beta, (1980-83)
CL-32, Vacuum Tube, (1980-81)
CL-34, Vacuum Tube, (1982-83)
CL-35, Vacuum Tube, (1976)
CL-40, Vacuum Tube, (1983-85)
CL-350, (1974-76)
CX-100, (1984)
Z-502, Duo-Beta, (1980-81)
All Power Output at 8 ohm
Duo-Beta - Duo-Beta/S - Duo-Beta plus-X
An optimum amount of NFb applied on top of an original, distortion-free amp circuit and servo NFb applied to the DC subsonic region do the best and cause the least harm. The result: smooth, clean reproduction of mid-to-high frequencies and tight, articulate bass response.
With the Duo-Beta/S circuitry, this acclaimed concept is farther deepened and intensified by means of mighty, stable power supplies.
The power supply section has to be stable and low in impedance. But it is also confirmed that in actuality an audio amp having such powerful power supply tends to accompany a "suppressed feeling" in reproduced sound or a lack of subtile nuance in expression. This is solely attributed to compulsory stabilisation by means of excessive damping at the feedback circuit of power supply section. The "plus-X" made compatible both stable power supply and extensive sound reproduction.
Вот такие дела ;-)