To be better than the best, this was LUXMAN's challenge when developing the P-750u, a new flagship headphone amplifier
The P-750u is a meticulously refined evolution of LUXMAN's P-700u, itself a highly respected, industry standard, high-end headphone amplifier, revered by many headphone listeners. Central to the design of this headphone amplifier is LECUA (LUXMAN Electronically Controlled Ultimate Attenuator), a high fidelity computer controlled attenuator which we feel is the ideal volume adjustment system. The P-750u also features ODNF Version 4.0 (Only Distortion Negative Feedback), a proprietary LUXMAN feedback circuit integral to this perfectly balanced headphone amplifier. The addition of a 4-pin XLR balanced headphone output to the P-750u completes the evolution by extending the choice of compatible headphones and elevating the listening experience for even the most ardent headphone users to uncharted heights.
Gradation cast iron legs that are used for the LUXMAN 900 series separate amplifier have been customised for the P-750u, taking thorough countermeasures against vibration.
Unbalance: 4W + 4W (8Ω), 2W + 2W (16Ω) 1W + 1W (32Ω), 53mW + 53mW (600Ω)
Balance: 8W + 8W (16Ω), 4W + 4W (32Ω) 213mW + 213mW (600Ω)
Input sensitivity/input impedance
20Hz to 20kHz (+0, -0.1dB)
10Hz to 170kHz (+0, -3.0dB)
Total harmonic distortion
Unbalance: 0.003% (1kHz)
Balance: 0.002% (1kHz)
S/N ratio (IHF-A)
Unbalance: 113dB, Balance: 116dB