Luxman - D-107u CD player - Multiple models
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Description from the seller
The Luxman D-107U CD player is a high-end CD player from the golden age of Japanese hi-fi (1990-1992), perfectly embodying Luxman's build quality and sonic signature. This vintage CD player blends cutting-edge digital technology with the incomparable warmth of tubes, thanks to its two 6CG7 tubes. The result is a musicality typical of the best tubo-era equipment. The digital-to-analog conversion system uses two N/A AD1860 1860-bit converters with 8x oversampling, guaranteeing audiophile sound reproduction with exceptional precision and dynamics. The KSS-152A mechanism ensures precise and reliable playback, while its robust 12 kg construction testifies to the care given to vibration damping and mechanical stability. Ideal for audiophiles seeking a vintage tube CD player, it is capable of reproducing all the emotion of the music with Luxman’s characteristic sound.
The mechanism is of very good quality: metal-injected except for the tray. It is a Sony with a KSS-152A block, placed in a central position and very well secured.
The rear panel is mounted; it is on this side that the two impedance adapter transformers for the tubes are fixed.
The power supplies are all carefully designed, with an EMI filter on the mains, and regulators either integrated or in discrete components after rectification of the secondary voltages. The transformer is continually powered, and startup is done via a four-contact switch. This very particular arrangement is related to the fact that there is a muting system at startup (30 seconds). This system to be active from the moment of startup is, however, continuously powered, so there is a re-tap upstream of the OFF/ON switch on a secondary winding of the transformer (all this is not visible on the schematic). The muting is necessary due to the warm-up time of the tubes.
The reading optics are managed by two Sony circuits: CXA1081 and 1082. Frame processing by a CXD1125 (Sony), digital filtering by an SM5813 (NPC), so only very classic and very solid components.
A/D conversion is done by two AD1860s from Analog Devices, 18-bit PCM with very low noise and distortion. Also here a (very) good converter.
Then comes what makes this device special: analog voltage amplification by tubes (6CG7) from General Electric. Each tube is used in half (since they are double triodes), one tube per channel, in Class A. The drive is provided via a coupling capacitor from the CAN outputs.
The output signal is either available directly on two back-panel RCA jacks labeled: "Fixed", or can be controlled by a double analog potentiometer (motor-driven) and available on two other RCA jacks labeled: "VARIABLE" (via a dual op-amp: NJM4580). Finally, the headphone output can also be used, amplified via a M5216. Well… purists will prefer the FIXED outputs, others will enjoy the convenience of volume-control remote operation.
Disc format: CD
Digital converter: 2 x AD1860N, 18 bit, 8 x oversampling
CD Mechanism: KSS-152A
Frequency response: 20Hz to 20kHz
Dynamic range: 85dB
Signal to Noise Ratio: 95dB
Channel separation: 83dB
Total harmonic distortion: 0.12%
Line output: 2.1V
Semiconductors: 20 x ICs, 25 x transistors, 44 x diodes, 2 x zener diodes
Valve complement: 2 x 6CG7
Dimensions: 469 x 147 x 342mm
Weight: 12kg
Digital converter: 2 x AD1860N, 18 bits, 8x oversampling; CD mechanism: KSS-152A; Frequency response: 20 Hz to 20 kHz; Dynamic range: 85 dB; Signal-to-noise ratio: 95 dB; Channel separation: 83 dB; Total harmonic distortion: 0.12%; Line output: 2.1 V; Semiconductors: 20 x ICs, 25 x transistors, 44 x diodes, 2 x zener diodes; Tubes: 2 x 6CG7; Dimensions: 469 x 147 x 342 mm; Weight: 12 kg
Comes with original remote control, batteries, documentation, two extra NOS 6CG7 Russia Electro Harmonix tubes, a new additional optical block KSS 152-RC, a mini HQ headphone with extension and jack adapter
Services included in the shipping costs:
Carefully packed with great care and attention, secured for national and international shipping
Additional insurance taken out according to purchase value
The Luxman D-107U CD player is a high-end CD player from the golden age of Japanese hi-fi (1990-1992), perfectly embodying Luxman's build quality and sonic signature. This vintage CD player blends cutting-edge digital technology with the incomparable warmth of tubes, thanks to its two 6CG7 tubes. The result is a musicality typical of the best tubo-era equipment. The digital-to-analog conversion system uses two N/A AD1860 1860-bit converters with 8x oversampling, guaranteeing audiophile sound reproduction with exceptional precision and dynamics. The KSS-152A mechanism ensures precise and reliable playback, while its robust 12 kg construction testifies to the care given to vibration damping and mechanical stability. Ideal for audiophiles seeking a vintage tube CD player, it is capable of reproducing all the emotion of the music with Luxman’s characteristic sound.
The mechanism is of very good quality: metal-injected except for the tray. It is a Sony with a KSS-152A block, placed in a central position and very well secured.
The rear panel is mounted; it is on this side that the two impedance adapter transformers for the tubes are fixed.
The power supplies are all carefully designed, with an EMI filter on the mains, and regulators either integrated or in discrete components after rectification of the secondary voltages. The transformer is continually powered, and startup is done via a four-contact switch. This very particular arrangement is related to the fact that there is a muting system at startup (30 seconds). This system to be active from the moment of startup is, however, continuously powered, so there is a re-tap upstream of the OFF/ON switch on a secondary winding of the transformer (all this is not visible on the schematic). The muting is necessary due to the warm-up time of the tubes.
The reading optics are managed by two Sony circuits: CXA1081 and 1082. Frame processing by a CXD1125 (Sony), digital filtering by an SM5813 (NPC), so only very classic and very solid components.
A/D conversion is done by two AD1860s from Analog Devices, 18-bit PCM with very low noise and distortion. Also here a (very) good converter.
Then comes what makes this device special: analog voltage amplification by tubes (6CG7) from General Electric. Each tube is used in half (since they are double triodes), one tube per channel, in Class A. The drive is provided via a coupling capacitor from the CAN outputs.
The output signal is either available directly on two back-panel RCA jacks labeled: "Fixed", or can be controlled by a double analog potentiometer (motor-driven) and available on two other RCA jacks labeled: "VARIABLE" (via a dual op-amp: NJM4580). Finally, the headphone output can also be used, amplified via a M5216. Well… purists will prefer the FIXED outputs, others will enjoy the convenience of volume-control remote operation.
Disc format: CD
Digital converter: 2 x AD1860N, 18 bit, 8 x oversampling
CD Mechanism: KSS-152A
Frequency response: 20Hz to 20kHz
Dynamic range: 85dB
Signal to Noise Ratio: 95dB
Channel separation: 83dB
Total harmonic distortion: 0.12%
Line output: 2.1V
Semiconductors: 20 x ICs, 25 x transistors, 44 x diodes, 2 x zener diodes
Valve complement: 2 x 6CG7
Dimensions: 469 x 147 x 342mm
Weight: 12kg
Digital converter: 2 x AD1860N, 18 bits, 8x oversampling; CD mechanism: KSS-152A; Frequency response: 20 Hz to 20 kHz; Dynamic range: 85 dB; Signal-to-noise ratio: 95 dB; Channel separation: 83 dB; Total harmonic distortion: 0.12%; Line output: 2.1 V; Semiconductors: 20 x ICs, 25 x transistors, 44 x diodes, 2 x zener diodes; Tubes: 2 x 6CG7; Dimensions: 469 x 147 x 342 mm; Weight: 12 kg
Comes with original remote control, batteries, documentation, two extra NOS 6CG7 Russia Electro Harmonix tubes, a new additional optical block KSS 152-RC, a mini HQ headphone with extension and jack adapter
Services included in the shipping costs:
Carefully packed with great care and attention, secured for national and international shipping
Additional insurance taken out according to purchase value
Details
Era
1900-2000
Brand
Luxman
Model
D-107u
Multiple models
Yes
Physical condition
Excellent
Number of objects
7
Includes
+ Extra item (see description), Brochures, Remote control
Serial Number
A00611360A
Year of manufacture
1990
Weight
12 kg
Functional condition
Tested and working/playable
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