Maintenance has been completed, including cleaning each switch and replacing deteriorated vacuum tubes! The tubular preamp that graced the end of the Lux kit. It features a soft, warm sound, and lustrous classical and vocals. What is remarkable is the amplifier block, which has been finished to the highest quality. This is a first-class amplifier that Lux Kit is proud of (Daiki Goto)
Maintenance information: 2025.4.16 Maintained (· 100μF x 2 deterioration exchange for block capacitors · 2200μF deterioration replacement 4 pieces · correction treatment with glitches on each knob · simple external and internal cleaning procedures · main volume replacement, vacuum tube socket and RCA jack caulking repair
(*Operation has also been checked with AC 100V)
Accessories: none
Main Specifications: Tubular Control Amplifier Kit Output Voltage: Rated 2V Input Impedance: Phono mm/50kΩ CD, Line, Tuner/100kΩ W493 x H142 x D403 mm 11.5 kg
Maintenance has been completed, including cleaning each switch and replacing deteriorated vacuum tubes! The tubular preamp that graced the end of the Lux kit. It features a soft, warm sound, and lustrous classical and vocals. What is remarkable is the amplifier block, which has been finished to the highest quality. This is a first-class amplifier that Lux Kit is proud of. There is a small scratch (Daiki Goto)
Maintenance Information: 2025.4.16 Maintained (· Electrolytic Capacitor 2200 μF and Other Deterioration Replacements 3, Resistors 1/2 W Degradation Replacements · External and Internal Simple Cleaning Treatment · Phono Noise Reduction Measures → 2 Additional Shield Cases · Vacuum Tube Socket and RCA Jack Caulking Repairs ※ Other Operation Checked with AC100V)
Accessories: manual, original box
Main Specifications: Tubular Control Amplifier Kit Output Voltage: Rated 2V Input Impedance: Phono mm/50kΩ CD, Line, Tuner/100kΩ W493 x H142 x D403 mm 11.5 kg
Maintained! A high output power amplifier representative of the Lux Kit. As with the original, the output tube was replaced with a GE 6550A, and the sound that combines both tasteful luster and strength is attractive. There are scratches and seal marks on the hood (Kojima Yosuke)
Maintenance information: 2025.2.21 maintained (all 4 output tubes 6550A replaced, 6AQ8 replaced, 2 RCA jacks replaced, exterior and interior simple board part re-soldering treatment, vacuum tube socket caulking repair) *Other measured output 50W (8Ω) was measured with AC100V
Accessories: none
Main specifications: mulard type drive circuit adopted 50W+50W W465×H168×D206mm 17kg
Maintenance was carried out with attention to detail, such as replacing deteriorated parts and completely disassembling VOL and repolishing contacts! A kit model of a power amplifier using a 50CA10 3-pole output tube and an OY15 type output transformer, composed of circuits and parts conforming to the MQ60 type, which has been evaluated by LUXMAN. The sound of a vacuum tube has a sense of volume that seems to meet expectations, and it gently envelops you. The sound, which doesn't require scale, is particularly unique, and the slight thickness that spreads from below the mid-range makes you feel comfortable. There are scratches and dullness on the exterior due to use over time. Serial 574994 (Tomonori Asaine)
Maintenance information: 2025.1.18 Maintained (impedance switching SW, gain VOL complete disassembly contact refinement, oxidation and sulfidation prevention grease applied. Vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminals, semi-fixed VR, fuse holder replacement. Load test (8Ω load 1kHz 30W+30W), input/output waveform confirmation, sound output check performed)
Accessories: none
Main specifications: 30W+30W 50CA10 push pull W410 x H160 x D205 mm 13.8 kg
Maintenance was carried out with attention to detail, such as replacing capacitors and replacing SP terminals! A kit model of a power amplifier using a 50CA10 3-pole output tube and an OY15 type output transformer, composed of circuits and parts conforming to the MQ60 type, which has been evaluated by LUXMAN. The sound of a vacuum tube has a sense of volume that seems to meet expectations, and it gently envelops you. The sound, which doesn't require scale, is particularly unique, and the slight thickness that spreads from below the mid-range makes you feel comfortable. The exterior has rust, oxidation, and scratches. Serial 574788 (Tamura Eiji)
Maintenance information: 2024.7.11 Maintained (vacuum tube sockets, block capacitors, electrolytic capacitors, oil capacitors, SP and RCA terminals, semi-fixed VR, fuse holder replacement. Check input/output waveforms and perform sound output checks. Impedance switching SW, gain VOL complete disassembly, contact refinement, and application of grease to prevent oxidation and sulfidation. Input/output waveform confirmation, load test (1 kHz sine wave, at 8 ohm load: 27W+27W, actual measurement), sound output test)
Accessories: none
Main specifications: 30W+30W 50CA10 push pull W410 x H160 x D205 mm 13.8 kg