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M-STAGE HPA-3B

Class A Full Balance Headphone Amplifier
Balance Headphone Output SNR: >-114dB A-Weighting
THD+N: <0.0003% at 300ohms 135mW 1kHz A-Weighting
Frequency Response: 20Hz-20kHz(+0dB/-0.05dB)
Output Impedance: 0.6ohms
Output Power: 3800mW at 33ohms / 1500mW at 300ohms / 800mW at 600ohms at THD+N=0.01%
SE Headphone Output SNR: >-108dB A-Weighting
THD+N: <0.0004% at 300ohms 325mW 1kHz A-Weighting
Frequency Response: 20Hz-20kHz(+0.03dB/-0.1dB)
Output Impedance: 0.4ohms
Output Power: 2100mW at 33ohms / 430mW at 300ohms / 220mW at 600ohms at THD+N=0.01%
Gain Control 5=5dB 10=10dB 20=20dB
Power Power Voltage:
230V position is fit for AC220V-240V 50/60Hz
115V position is fit for AC100V-120V 50/60Hz

Power Consumption: <25W
Fuse: AC250V/500mA 5x20mm
Other Dimension: 285×142×49mm L×W×H(Including the protruding part)
Weight: 1.7kg
Accessory 1x User Manual Disk
1x Power Cord
2x XLR/RCA Adapter
empf. VK inkl. 19% MwSt. to be announced

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Class A Full Balance Headphone Amplifier

M-STAGE HPA-3U

HPA-3B is a new member of the M-Stage series headphone amplifier, who is the first one full-balanced design of the headphone amplifier, both supports single-ended output and differential output, maximizing the performance of the headphones.

Full-band of THD + N less than 0.0003%, SNR up to -114dB, bandwidth not less than 140k at -3dB gain, 0.4Ω, three gain level options to fit for the different impedance and sensitivity headphone, all of these excellence performance improvements to be born the brand new HPA-3B!

HPA-3B is both a balance headphone amplifier and a single-ended headphone amplifier, can input the single-ended signal via accessary XLR converter.

Excellent structural design to quickly dissipate the heat of power transistors via the shell, full symmetric circuit layout, fully differential signal path amplification, driver stage is the precision constant current source, the precision quadruple potentiometer volume control, so that the HPA-3B has better dynamic range and details than a single-ended headphone amplifier.

The Alps customizes model of volume potentiometer, Wima and Nichicon audio grade capacitors, Noratel toroidal transformer, precision non-inductive resistance, each carefully selected components make HPA-3B not only presents the perfect sound, but also a more stable and reliable.

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