Luxman M-900U Stereo Amplifier

MSRP: $19,000

Product Description

Luxman M-900U Specifications

Rated output 150W +150 W (8Ω) / stereo at the time, 300W +300 W (4Ω) / stereo at the time,
600W (8Ω) / monaural
Instantaneous maximum output 1200W +1200 W (1Ω) / stereo at the time, 2400W (2Ω) / monaural
Input sensitivity 1.24V/150W (8Ω), GAIN 29.0dB
Input impedance Unbalanced 51kΩ, 34kΩ balance
Frequency characteristic 20Hz ~ 20kHz (+0,-0.1dB), 1Hz ~ 130kHz (+0,-3.0dB)
Total harmonic distortion Less than 0.008% (1kHz/8Ω), 0.1% or less (20Hz ~ 20kHz/8Ω)
S / N Ratio (IHF-A) 117dB
Amplifier circuit ODNF4.0
Output Configuration Bipolar 4 parallel push-pull × 2
Power transformer EI type 1,250 VA
Damping factor 710
Power-supply voltage AC100V (50 / 60Hz)
Power consumption 520W (under the provisions of the Electrical Appliance and Material Safety Law), 280W (no signal), 1.0W (standby)
External dimensions 440 (width) × 224 (height) × 485 (depth) mm, depth includes front knob 2mm, the rear terminal 38mm
Weight 48.0kg (body), 54.0kg (standard packing)
Accessories Dedicated remote cable, power cable (JPA-15000: polarity marked)

Luxman M-900U Description

For 2014 Luxman is introducing a new flagship stereo amplifier, with Class A 12 watts (8 ohms)  and Class AB 150 watts x 2 (8 ohms) or 600 x 1 watts (8 ohms) when used as a mono block.

The new ODNF 4.0 reduces high frequency distortion and delivers a smooth midrange, utterly grain free. As a stereo amplifier, the M900u is stable into a 1 ohm load, where it delivers 1,200 watts, peak power.

The Luxman M-900U offers a powerful power supply with large capacity 20,000 μF × 4 block capacitors, OFC bus bar and direct hard wiring. The EI type transformer itself implements flat square shaped copper windings minimizing line capacity, enhancing binding force and providing excellent magnetic stability. Outputting an impressive 1,250 VA (instantaneous 2,500 VA), the M-900U has the power required to drive any speaker to peak performance.

The M-900U also utilizes 4 large capacity output relays offering an incredible damping factor of 710. To eliminate stray magnetic fields and associated impedance rises, Luxman developed a loop-less chassis eliminating the possibility of ground loops within the M-900U chassis. Cast iron legs act as a resonance sink and quickly drain vibrations found within the unit.

Luxman does not settle on ordinary components within its products. Rather, they design and build a large number of components found within the M-900U. Wiring, capacitors and even terminals are hand selected to meet the demanding standards at Luxman. Even the power cable was carefully designed. The JPS-15000 power cable utilizes the highest quality oxygen-free copper and take the last step in ensuring the purity of the sound.

Luxman never ceases in its quest for audio perfection. The M-900U represents a major step forward in this journey.