럭스맨 L-550AX 인티앰프 > 전문장터

럭스맨 L-550AX 인티앰프입니다.

매끄럽고 중후한 음색에 친숙한 파워미터의 견실한 디자인, PURE A class 20와트/8옴 출력으로 미들클래스 인티그레이티드 앰프중 베스트바이로 손꼽히는 L-500A 시리즈의 신형 AX버젼입니다.
새로운 전원부를 비롯 고품위 아나로그 회로와 왜곡성분을 부귀환하는 럭스맨의 ODNF 회로의 적용등, 상급기에 버금가는 물량투입으로 사운드의 표현력이나 침투력을 현격히 향상시켰습니다.
온기가 느껴지는 중후한 음색에 활달함과 기품이 더해졌으며, 여유있는 구동력으로 악기의 질감을 명확하게 구분해 울리는 럭스맨의 매력력있는 사운드를 즐길수 있습니다.
MM/MC 포노단과 발란스 입력단자 지원합니다.
스위치 조작으로 프리앰프와 파워앰프로 각각 사용가능하며, 스피커는 2조 연결가능합니다.

정식수입 220볼트, 신품입니다.
판매가는 송료포함 680만원이고 다른제품과 절충교환 가능합니다.
광주지역 직거래 가능하고 전국택배 가능합니다.

011-9615-1858
 poohlover4364@hanmail.net

 Specifications:

 Rated Output 2 x 20W RMS/8 2 x 40W RMS/4
 Input Sensitivity / Impedance Phono (MM): 2.5mV/47k Phono (MC): 0.3mV/100
 Line: 180mV/42k
 Total Harmonic Distortion <0.005%
 Frequency Response 20Hz ~ 100kHz (-3dB)
 S/N Ratio >105dB
 Line Inputs 4 x LINE, 2 x Balanced, 1 x MM/MC (switchable),
 1 x TAPE, 1 x Power Amp in
 Line Outputs 1 x Pre-Amp out, 1 x TAPE, 1 x headphones
 Speaker Outputs Speaker A/ B switchable, Speaker A+B
 Dimensions (W x H x D) 440mm x 193mm x 463mm (including control knobs and terminals)
 Weight 28.2kg
 Accessories Metal remote control handset, JPA-1000 polarized power cord

 Luxman introduced the L-550A and L-590A in 2005, since then we have celebrated our 80th anniversary with commemorative components that have reaffirmed Luxman's status at the pinnacle of high-end audio. In these latest integrated models, the gorgeous texture and three-dimensional performance of our original Class A amplifiers has been retained and further refined. For example, the L-550A II amplifiers featured a new electronic selector switch, adopted from the input section of the C-1000f control amplifier; while the L-550Ax series now uses a variation of the LECUA discrete volume control first introduced in the C-1000f.

 Chassis bases have superb vibration absorption in order to supress noise levels. The power transformer, electrolytic capacitors and amplifier output stage (see amp block below) are laid out so as not to interfere with each other. To reduce interference further, the block construction isolates each section using shielding panels, and extensive internal filtering to reject magnetic flux interference.

 Pure Class A
 Thanks to the always-on nature of the topology and the removal of an entire type of distortion, allied to sound that excels in a midrange liquidity, low-level detail, superb dynamics and transparency, its devotees are more than happy to put up with low efficiency and heat. What Class A always seems to offer above everything else is a tube-like sound without the maintenance hassle of tubes.

 Input Selector
 The L-590Ax, L-550Ax and the L-509u, feature the new high quality electronic selector switch, which is the heart of the C-1000f pre-amp (one of Luxman’s 80th anniversary commemoration models). The sound quality deterioration using the new electronic input switch is now minimal, while channel separation and crosstalk efficiency were raised substantially in comparison with the L-550A / L-590A. In addition the illuminated position indicator around the input selector knob, makes it much easier to view the selected position even from afar.

 Volume Control
 The integrated amplifiers also benefit from the C1000f in that they use a variation of the LECUA 1000 volume control. At any single volume setting only a few resistors are in circuit per channel. The less devices in the signal path, the purer the sound, the cleaner the music.

 At low listening levels, potentiometers have trouble keeping both channels in balance, so one channel might easily be 3dB louder than the other. With the volume control made of discrete parts, this is no longer an issue.

 Amplifier
 The amplifier section has not been ignored either; noise and distortion has been kept to a minimum with the introduction of ODNF version 3.0A. The deep, rich Class A tone is available here is Luxman’s hall-mark sound. More info on ODNF below.

 Pure Copper Cabling
 Extensive listening was applied to the high purity, oxygen free copper (OFC) cables which are used to transmit the signal throughout the amplifier. These cables have a minimal audible signature and minimal electrical effect on the audio waveform. Linear wide bandwidth frequency response is achieved by the low measured values of both inductance and capacitance. The result, the cables do not color the sound, but pass it through, quickly.

 Phono Stage

 Enjoy the ability to play or record your LP collection with the built-in phono stage which accommodates both Moving Magnet and Moving Coil cartridges. The MM input has approx. 35dB of gain. While the MC input has 55dB of gain (a multiplication of 550x). We recommend MC cartridges with an output >.7mV. Lower than that you might consider using the MT-88 moving coil step-up transformer. Click here to be redirected.

 The L-550Ax has a new improved phono stage; quieter, more detailed and yet as rich and musical tonally as Luxman are famous for.

 Subsonic Filter
 A subsonic filter is also easily accessible from the remote control in order to remove unwanted low frequency noise while you are listening to a record. When the stylus hits the groove, you might notice the woofers modulating in and out, even though there is no music playing yet. This is due to the ultra low frequency information (below the music), this unnecessary information places a strain on the amplifier and is best filtered out. A mono switch is also available for both loudspeaker setup as well as mono record playback.

 Headphone Amplifier
 There is also a high quality headphone amplifier, accessible from the front panel, ideal for late night listening. You can turn off the speaker output by a simple click of the Speaker Selector.

 The headphone outlet sees the same signal as the speaker terminals, there is one resistor per channel in the signal path to pad down the output.

 Two Pairs of Speaker Terminals
 Large speaker terminals for driving two individual sets of speakers. At the turn of the speaker switch, it is possible to change between the two pairs of speakers easily. In addition, if the A+B function is used; Takasina capacitors are used to parallel the output which permits bi-wiring a single pair of speakers.

 ODNF 3.0

 Luxman holds many patents for audio engineering, amongst them is the application of Global Negative Feedback to the output stage, which while widely used throughout the audio industry, they no longer use themselves.

 Luxman nowadays use a distortion reduction circuit called Only Distortion Negative Feedback (ODNF). This system works by isolating noise & distortion at the output from the music signal and sparingly applying negative feedback to suppress them. Conventional negative feedback systems can have an adverse effect on the music, introducing phase distortion. "The circuit features such an ultra-wide range, ultra- high slew rate and ultra low distortion that it does not use phase compensation for the music signal amplifying circuits." This new technology also ensures that need for a DC servo circuit is alleviated, again improving sound quality.

 Now with version 3.0 three different monitoring passes are made of the audio signal, to eliminate any noise or distortion in the music signal. It results in a lower noise floor of about 2 dB, giving you blacker silence between the notes and a more dynamic performance.

 Tone Controls

 The tone controls might seem like an anachronism in this day and age of minimalism, but they can be remarkably effective in bring to life a less than perfect music collection. We all have music gems in our collection that are sonicly challenging. A lot of the 1980's CDs are quite harsh sounding and the digital glare can be quite fatiguing. Reduce the treble slightly and while the harsh CD is not going to suddenly sound like a reference recording, at least it will now be perfectly listenable. Sit back relax, enjoy the music & forgot about the HiFi. When you want to bypass the tone controls, just engage the Line Straight switch, either from the remote control or from the front panel.

 NOTE: You might also use the Tone Controls for room acoustics’ correction. They are in effect simplified room equalization controls.