SQ-38u – release date 2008.
Second Generation of the famous "SQ-38D" is that from 1964, roughly 44 years ago!
(Output tubes: 6RA8, power transformers: OY-14, 10W +10 W) at 50,000 units was also a big hit.
Third Generation "SQ-38F" in 1968, F at the time was meant as an abbreviation for Final as Luxman thought that they would soon have to cease vacuum tube production due to the increased prevalence of the transistor in audio component design.
(Output tube: 50C-A10, output transformer: OY-15, 30W +30 W)
SQ-38FD
LX-38
SQ-38 Signature
SQ-38D Limited Edition. This amplifier was never exported - only available in Japan.
For 2009 the eleventh generation SQ-38 is a wonderful blend of old & new; the SQ-38u incorporates many modern features in a classic design that exudes luxury & class. Another remarkable design from Kazuyuki Doi - who brought us the MQ-88 / CL-88 as well more recently the NeoClassico. Conservatively rated @ 30 watts per channel, gives a linear output as well as reliable performance for many years to come. Here is an amplifier that can be inherited by the next generation.
* Remote controlled volume control, photo is misleading as the RC is only 1 3/4" x 3½".
* Separate switch on the front panel, allows the SQ-38u to be easily integrated into a home theater system. This separates the preamplifier section from the amplifier. Allowing one to take the output of a Home Theater Processor directly to the amplifier, bypassing the on-board preamplifier completely. Could also be used with a room correction device.
* Phono stage with selectable MM, MC low output or MC high output. MC duties are handled by an on-board step-up transformer. With up to 63dB of gain available, should easily handle low output MC cartridges.
* Mono switch
* Subsonic Filter, to remove rumble from LP playback
* Tone Controls, easily engaged or defeated at the press of a switch.
* High quality headphone output on the front panel.
* Five inputs as well as a Tape Loop.
* Two pairs of selectable speaker outputs
* Conservatively rated at 30 wpc x 2, using Electro Harmonix EL34 output tubes
* Illuminated volume control, so that its setting can easily be seen across the room.
PRELIMINARY SPECIFICATIONS
Output: 30W +30 W (6Ω), 25W +25 W (8Ω, 4Ω)
Inputs: 1 phono (MM / MC high / MC low), 4 line inputs
Recording input and output: REC output, monitor
Speaker Outputs: A, B (independent switching, with simultaneous output)
Remote Control Functions: Volume up / down, mute
Tube Compilment EL34 x 4, ECC85 (6AQ8) x 5, ECC82 (12AU7) x 2
Dimensions: 15.7" (400mm) W x 7.7" (196) H x 12.2" (310) D
Weight: 44 lbs. (20 KG)
Supplied Accesories: Remote Control, JPA-10000 Power Cord
The SQ-38u on display during the Tokyo Show, October 2008SQ38D – rok 1964 (lampy wyjściowe: 6RA8, transformator zasilający: OY-14, moc: 10 W +10 W, sprzedano 50 000 sztuk), 
