Japan Luxman Lishi L-507UX combined power amplifier with LP vinyl singing amplifier brand new authentic licensed warranty
The first generation of L-507S was launched in 1996. After three changes in the past 20 years, it has a large sales volume and is supported by many users. It belongs to the L-500X series of evergreen products. LUXMAN1 announced last year that the L-507uX combined transistor amplifier is the fourth-generation product of the L-500X series highly praised by the market. In terms of appearance design, L-507uX gives people a strong nostalgia, especially on the front panel of the L-507uX fuselage, with large display headers, knobs and buttons. With the beat of the music, the L-507uX machine The pointer on the head of the body jumped accordingly. The body of the L-507uX is particularly sturdy and solid. The body adopts a specially reinforced chassis shell. The four corners of the shell are smooth and finely polished, and the panel is equipped with a blue light group display, which can display the working status of the machine in real time. Make the pointer swing of the meter head can be clearly seen. The ODNF technology of the flagship C-lOOOF continues to be used in the fuselage. However, what is even better is that the factory has further improved the technology to allow the L-507uX fuselage to support more advanced ODNF 3.0 technology. The so-called ODNF is also the abbreviation of Only Distortion Negative Feedback, this technology can greatly reduce distortion and noise, improve the accuracy and cleanness of the sound, and has an ultra-wide frequency response. Equipped with Luxman''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s exclusive new-generation ODNF 3.0 technology has become another highlight of the L-507uX amplifier. This new ODNF loop achieves high-speed and high-transparency sound quality. ODNF technology can feed back the distortion part in the final stage of the amplification loop, and only remove the distortion part from the output waveform, thus achieving the initial fast and broadband bandwidth commensurate with SACD and DVD audio. At the same time, in terms of function, the L-507uX amplifier has also been further strengthened. The body has MM and MC phono amplifier functions. If you want to further set off the retro trend, then use the L-507uX to match the vinyl turntable system to the end. The L-507uX can support the phono amplifier function. The body has a PHONO (MM) output with an excellent performance of 91db. It also supports a PHONO (MC) output with a performance of 75db, while the LINE has a 105dB output. Performance. In the interface, the input/output interfaces of the fuselage are all made of high-quality products. These excellent metal products output and input interfaces can take into account the conductivity and excellent hardness of copper, and can reduce the appearance of long-term exposure to the air. Oxidation. Compared with the previous generation of LUXMAN equipment, the volume control circuit and amplifier circuit of the L-507uX amplifier have also been improved. As a new generation of excellent combined amplifier, the built-in volume control technology is very important, and the L-507uX amplifier body It also introduces the LECUA advanced volume control technology of the factory’s flagship pre-level C-1000. This technology is different from the LECUA circuit control used in the C-1000, but is based on the internal structure of the L-507uX amplifier itself. The design is therefore more handy. LECUA advanced volume control technology is one of LUXMAN''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s core excellent technologies. Its full name is Luxman Electric Controlled Ultimate Attenuator. This LECUA system is a switch-type attenuator component composed of advanced fixed resistors. And complete the attenuation process with a normal fixed resistance, by starting the FET switch instead of the contact mode, and a high-performance light-speed interrupter, you can get an outstanding degree of noiselessness. The amplifier body can have tens of scales in select positions to maintain the actual volume, which can provide a stable operation. With the development of LECUA, the LUXMAN factory has become a stable advantage. Even when there is a small level error in the adjustment of the left and right channels, it will be very quiet. This technology alone has made LUXMAN''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s amplifiers reach a very high level. High technical attainments. The focus of the design of LECUA on the L-507uX amplifier is to eliminate contact noise during operation, and to abandon the more lossy variable resistance volume control. Instead, it uses LECUA circuit control technology for precise control. Brings excellent performance. In addition, the circuit copper foil of all circuit boards in the fuselage is a thickened version. Such materials can effectively improve circuit performance, better signal transmission capabilities, and can make the circuit more stable, and can also reach the circuit The board has no noise interference, so that the signal-to-noise ratio and sound quality of signal amplification are guaranteed. In addition, all signal wires and power wires inside the fuselage are made of high-purity copper wires. Even the large, high-quality transformers in the power section are wound with high-purity and thick OFC wires.
In the initial test of the LUXMAN L-507uX amplifier, I feel that although it is not the design of a tube amplifier, it does have a warm charm similar to that of a tube machine. The sound density is very good. The mid-frequency extends naturally to both ends, very well-proportioned. This is very important. One of the problems with common amplifiers is that the density and tone of each frequency band are different. This may be good for listening to some concerts, but in most cases, it will be uncoordinated and sound strange. L-507uX thinks it is a very interesting amplifier with its special design concept. The aesthetic standard of not putting the radiating fins out of the teeth and dancing claws actually more or less reflects Luxman''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s philosophy of sound: calm and restrained. L-507uX is not the kind of sound that makes you amazing when you start it. It is not as pleasing as a bright and brisk sound, nor is it a hearty sound. Its thrust is absolutely not lacking, it is not lacking in dynamics, and the contrast is also very strong, but somehow it sounds a little tube-like. It seems to combine the thrust of the transistor with the unique charm of the tube machine. It is clearly analytical but with a slightly yellowish feeling. It is the kind of old-fashioned Big Sound feeling. To describe it in recording, it is like the feeling that people say about two-channel golden recordings around the 1960s. Calm, solid, thick and dense mid-frequency, warm and meticulous high-frequency, but the focus is not on analysis or extension, but on the display of musicality or so-called analog flavor. Therefore, L-507uX has a special taste on the vinyl system, and can show its charm especially on older recordings. Is modern recording bad? Of course not, but sometimes I feel that L-507uX is very sophisticated when playing exciting concerts, and there is a feeling that the old rivers and lakes can''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t scare it. After all, the old Big Sound of modern recording is gone.
Specifications:
Continuous output: 110W+110W/8Ω, 210W+210W/4Ω
Input: Terminal×4. Phonograph×1（MM/ MC）
Input/output x1, independent input x1
Speaker output: A, B system（A+ B output）
Amplifying circuit output: ODNF3.0
Input sensitivity/impedance: Phono（MM）: 2.5mV/47K, Phono（MC）:
0.3Mv/100, LINE: 180mV/47kohm
MAIN-IN: 1.05V/47KΩ
Harmonic distortion: less than 0.005%（1kHz/8Ω）, 0.04% or less（/8 of 20Hz～20kHzΩ）
Frequency response: 20Hz～100kHz（+ 0, -3.0dB）
Signal and noise: PHONO（MM）: 91 decibels, Phono（MC）: 75 decibels, LINE: 105 decibels
Power consumption: 300W（Rated output）, 86W（When there is no signal）, 0.4W（Idle）
Volume: 440×177×454（Width x height x depth）mm
Net weight: 23.9 kg catty