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Luxman L-550AXII Integrated Amplifier

675,000.00

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Pursuing a sound that appeals to the senses whilst creating a deep musical impression is the ultimate role of the audio amplifier. With pure class A design, the Luxman L-550AXII integrated amplifier is a refined version of the L-550AX which was itself fully restyled in 2011. The MK II model boasts improved functionality with the latest technologies equivalent to the higher grade L-590AXII such as Version 4.0 of the original amplification feedback circuit ODNF, the new LECUA1000, computerized attenuator, and a buffer circuit with discrete configuration as standard. Such features result in a model with capability of expression above its class, offering a mellow and dense sound that only pure class A amplification can create. The L-550AXII is a mid-range integrated amplifier that increases its maturity in an attractive, functional design for music to be thoroughly enjoyed.

 

The new LECUA1000 computerized attenuator

A pre-amplifier circuit-integrated computerized attenuator, new LECUA* 1000, equivalent to that used in the higher grade L-590AXII model is mounted in the volume adjustment unit, playing a critical role in the pre amplifier section.The renovation was made to the buffer circuit input stage to allow smooth volume adjustment in 88 steps thereby minimizing the deterioration of sound quality. Additionally, a 3D layout has been introduced in the new LECUA1000 allowing the substrates to be placed in three dimensions. The attenuator circuit is connected directly to the amplification circuit to make the shortest signal routes and improve efficiency. The LECUA1000 has exceptional durability and is capable of controlling the changes in sound quality that may occur due to external vibrations or sound volume adjustment.

*LECUA is an abbreviation of Luxman Electric Controlled Ultimate Attenuator.

 

ODNF version 4.0 an innovative amplification feedback circuit

The ODNF* , LUXMAN original amplification feedback circuit, features a fast primary slew rate and an ultra-wide bandwith achieved through the feedback of distortion components only from the output signals. The L-550AXII is equipped with the latest version of ODNF – Version 4.0 – in which the distortion characteristics at high frequencies as well as the S/N performance have been significantly improved. Version 4.0 ODNF also features a large scale power amplifier with a parallel push pull structure where 3 stage Darlington is used. Both of these features are inherited from the M-700u power amplifier and the higher grade integrated L-590AXII. A rated output of 20W +20W (8Ω) of pure class A amplification achieves a mellow, expressive sound with a heightened sense of density with high drivability to speaker systems.

* ODNF is an abbreviation for “Only Distortion Negative Feedback”.

 

Large-capacity power supply circuit

A high-inertia power supply circuit that combines a large capacity EI core type power transformer (to which a vibration control feature has been newly added) and a large capacitor block (10,000uF x4) is an integral part of the L-550AXII. This large capacity power supply circuit supports the sound dynamics of the unit by enhancing stability at the core of the design.

 

Discrete buffer circuit

A discrete buffer circuit that is the equivalent to those used in the top end LUXMAN C-900u separate amplifier is mounted on the output stage of the pre-amplifier circuit. This protects the purity of the audio signals whilst simultaneously enhancing the drive force for the power amplifier.

 

Low impedance transmission

The large capacity, low resistance speaker relays are connected in parallel in order to transmit the powerful drive force that is generated by the high inertia power supply circuit and the large scale output circuit without loss. Connecting directly to the speaker terminals in this way significantly improves the damping factor from 160 to 200.

 

Proprietary technologies

The L-550AXII is designed using proprietary technology and customised parts to optimise the sound quality of this integrated amplifier. For example, the round pattern board enabling smooth signal transmission, and a Beeline construction configuring the optimal parts locations and the shortest signal routes. In addition to this, the loopless chassis structure minimizes the ground impedance increase.

 

Customised parts making sound quality the priority

Original LUXMAN OFC wires are used in the internal wiring of the L-550AXII achieving a smooth signal transmission due to the spiral wrap shielding on each core and the non-plating process on the core wire. The L-550AXII is designed introducing many custom-built parts and sophisticated technologies including newly developed high sound quality, low height block capacitors.

 

Abundant functions

The L-550AXII is equipped with a fully-fledged phono amplifier that is compatible with MM/MC cartridges. The front panel features multiple functions such as bass/treble tone control, LR balance adjustment, a pre/power separation switch. A loudness function interlocking with the sound volume is operable by the remote control.

 

Improved operability and functionality

The front panel features a newly designed, highly visible meter panel that expresses the identity of the MK II model with a ‘pointer type’, LED lit analog meter. The tactile machined aluminium control knobs enable greater accuracy of selection.

 

Specification of the Luxman L-550AXII Integrated Amplifier

 

Rated output 20W + 20W (8Ω), 40W + 40W (4Ω)

Input sensitivity / input impedance

PHONO (MM): 2.5mV/47kΩ

PHONO (MC): 0.3mV/100Ω

LINE: 180mV/47kΩ

BAL.LINE: 180mV/55kΩ

MAIN-IN: 450mV/47kΩ

Output voltage

RECOUT: 180mV, PRE OUT: 1V

Frequency response

PHONO: 20Hz to 20kHz (±0.5dB)

LINE: 20Hz to 100kHz (+0, -3.0dB)

Total harmonic distortion

0.007% or less (8Ω, 1kHz)

0.02% or less (8Ω, 20Hz to 20kHz)

S/N ratio (IHF-A)

PHONO (MM): 91dB or more,

PHONO (MC): 75dB or more

LINE: 105dB or more

Volume adjustment New LECUA1000

Amplification circuit ODNF 4.0

Output configuration Bipolar parallel push-pull

Damping factor 200

Max. amount of tone control

BASS: ±8dB at 100Hz

TREBLE: ±8dB at 10kHz

Power supply 230V~(50Hz)

Power consumption

230W

170W (under no signal), 0.5W (at standby)

External dimensions 440(W) x 178(H) x 454(D) mm

front side knob of 20mm and rear side terminal

of 27mm included in depth

Net weight 24.3kg (main unit)

 

Catalog -> https://www.luxman-global.com/asset/catalog/l-550ax2_catalog.pdf

Brand

Luxman

Buy brand new & 100% genuine Luxman audio products from India's official online dealer at the special offer price with a manufacturers warranty.

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EMI Options
Credit Card EMI
American Express
Axis Bank
Bank Of Baroda
Corporation Bank
HDFC Bank
HSBC Bank
ICICI Bank
IDBI Bank
IndusInd Bank
Kotak Mahindra Bank
RBL Bank
SBI Card
Standard Charted Bank
Yes Bank
Months
Monthly EMI
Overall Cost
3
230,270.30 (14%)
690,810.89
6
117,138.15 (14%)
702,828.90
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,120.86 (13%)
712,087.70
12
60,289.16 (13%)
723,469.93
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
36
23,399.10 (15%)
842,367.48
Months
Monthly EMI
Overall Cost
6
117,807.94 (16%)
706,847.65
12
61,884.00 (18%)
742,607.94
24
33,698.77 (18%)
808,770.45
Months
Monthly EMI
Overall Cost
3
230,648.29 (15%)
691,944.87
6
117,472.82 (15%)
704,836.93
9
79,765.12 (15%)
717,886.12
12
60,924.36 (15%)
731,092.33
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
Months
Monthly EMI
Overall Cost
3
229,703.69 (12.5%)
689,111.07
6
116,636.98 (12.5%)
699,821.88
9
79,281.67 (13.5%)
713,535.00
12
60,447.62 (13.5%)
725,371.42
18
41,634.76 (13.5%)
749,425.72
Months
Monthly EMI
Overall Cost
3
229,888.73 (12.99%)
689,666.20
6
117,134.80 (13.99%)
702,808.83
9
79,439.43 (13.99%)
714,954.85
12
60,603.13 (13.99%)
727,237.54
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,120.86 (13%)
712,087.70
12
60,289.16 (13%)
723,469.93
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,120.86 (13%)
712,087.70
12
59,972.93 (12%)
719,675.19
18
41,162.88 (12%)
740,931.88
24
31,774.59 (12%)
762,590.25
36
22,419.66 (12%)
807,107.73
Months
Monthly EMI
Overall Cost
3
229,514.93 (12%)
688,544.78
6
116,470.15 (12%)
698,820.89
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
117,138.15 (14%)
702,828.90
9
79,765.12 (15%)
717,886.12
12
60,924.36 (15%)
731,092.33
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
Months
Monthly EMI
Overall Cost
3
230,270.30 (14%)
690,810.89
6
117,138.15 (14%)
702,828.90
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
American Express
Months
Monthly EMI
Overall Cost
3
230,270.30 (14%)
690,810.89
6
117,138.15 (14%)
702,828.90
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
Axis Bank
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
Bank Of Baroda
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,120.86 (13%)
712,087.70
12
60,289.16 (13%)
723,469.93
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
36
23,399.10 (15%)
842,367.48
Corporation Bank
Months
Monthly EMI
Overall Cost
6
117,807.94 (16%)
706,847.65
12
61,884.00 (18%)
742,607.94
24
33,698.77 (18%)
808,770.45
HDFC Bank
Months
Monthly EMI
Overall Cost
3
230,648.29 (15%)
691,944.87
6
117,472.82 (15%)
704,836.93
9
79,765.12 (15%)
717,886.12
12
60,924.36 (15%)
731,092.33
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
HSBC Bank
Months
Monthly EMI
Overall Cost
3
229,703.69 (12.5%)
689,111.07
6
116,636.98 (12.5%)
699,821.88
9
79,281.67 (13.5%)
713,535.00
12
60,447.62 (13.5%)
725,371.42
18
41,634.76 (13.5%)
749,425.72
ICICI Bank
Months
Monthly EMI
Overall Cost
3
229,888.73 (12.99%)
689,666.20
6
117,134.80 (13.99%)
702,808.83
9
79,439.43 (13.99%)
714,954.85
12
60,603.13 (13.99%)
727,237.54
IDBI Bank
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,120.86 (13%)
712,087.70
12
60,289.16 (13%)
723,469.93
IndusInd Bank
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,120.86 (13%)
712,087.70
12
59,972.93 (12%)
719,675.19
18
41,162.88 (12%)
740,931.88
24
31,774.59 (12%)
762,590.25
36
22,419.66 (12%)
807,107.73
Kotak Mahindra Bank
Months
Monthly EMI
Overall Cost
3
229,514.93 (12%)
688,544.78
6
116,470.15 (12%)
698,820.89
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
RBL Bank
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
117,138.15 (14%)
702,828.90
9
79,765.12 (15%)
717,886.12
12
60,924.36 (15%)
731,092.33
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
SBI Card
Months
Monthly EMI
Overall Cost
3
230,270.30 (14%)
690,810.89
6
117,138.15 (14%)
702,828.90
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
Standard Charted Bank
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
Yes Bank
Months
Monthly EMI
Overall Cost
3
229,892.51 (13%)
689,677.53
6
116,803.92 (13%)
700,823.55
9
79,442.65 (14%)
714,983.84
12
60,606.30 (14%)
727,275.65
18
42,109.73 (15%)
757,975.17
24
32,728.49 (15%)
785,483.70
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