"38" –. That is LUXMAN's golden number in the vacuum tube integrated amplifier series. SQ-38u will come on the market titled with such golden number for the first time in 10 years. SQ-38u is equipped with well-designed switches and knobs, and is covered with a square-shaped wooden chassis, all of which remind you classical products, on the one hand, but is equipped with a phono equalizer amplification circuit in which a step-up transformer is embedded as well as a full-fledged separate structural vacuum tube pre-amplifier and a 30 watts power amplifier owing to EL34 push-pull UL connection on the other hand. User-friendly functions including headphone jack and remote control are available. We have satisfied the eagerness of audio fans who have been enchanted by vacuum tube sound from the viewpoint of not only sound quality but also the functional aspect.
Continuous power output 30W+30W (6Ω)/25W+25W (8Ω, 4Ω)
Vacuum tube used EL34 x 4 pieces,ECC83S x 4 pieces, ECC82 x 3 pieces
Power consumption 185W (Electrical Appliance and Material Safety Law)
Outside dimensions 440 (W) x 196 (H) x 310 (D) mm
Weight 20.0kg

Frequency characteristic

PHONO: 20Hz ~ 20KHz (± 0.5dB) 
LINE: 10 Hz ~ 100KHz (+0,-3.0dB)


Total harmonic distortion

(1KΩ, 1W) 0.03% or less 
(1KΩ, rated output) 0.5%


S / N Ratio (IHF-A)

PHONO: 65dB or more 
LINE: 99dB or more



Phono (MM / MC high / MC low support) system 1, line 4 systems


Recording input and output

Each one line recording output, monitor input

Separate input and output

Each one pre-output system, the main input


(Separate switching, simultaneous output) Speaker output A, B

Remote control feature

Volume up / down, mute

Circuit system

Driver: Mullard circuit, output: UL connection

Use vacuum tube

Four EL34 ×, 4 this ECC83 ×, ECC82 × 3 this

Power-supply voltage

AC100V (50/60Hz)

Power consumption

185W 150W (under the provisions of the Electrical Appliance and Material Safety Law) (no signal)

External dimensions

400 (width) × 196 (height) × 310 (depth) mm 
(depth does not include terminal, the knob)


20.0Kg (body)


Remote Control (RA-14), power cable (JPA-10000)

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