Alto

At the heart of Huei lies precision and versatility, starting with its input impedance. For Moving Magnet cartridges, Huei offers a standard 47,000 Ω load, while for Moving Coil setups, it provides a wide range of adjustability—from 100 to 3,700 ohms—across 12 finely tuned steps, allowing for perfect cartridge matching.

When it comes to gain, Huei offers impressive flexibility. For MM cartridges, users can select between 21 dB and 42 dB via RCA, or 27 dB to 48 dB through XLR outputs. For MC cartridges, gain extends from 49 dB to 70 dB via RCA, and up to a powerful 76 dB through XLR—making Huei a true companion for low-output designs.

Behind the scenes, Huei keeps noise to an absolute minimum, with a remarkably low input noise level of just 1.1 nV/√Hz. This ultra-quiet performance ensures the signal you hear is pure, detailed, and free from unwanted interference.

The maximum output reaches up to 20 V RMS, giving it ample headroom to drive a wide range of downstream equipment. And for the vinyl purist, Huei faithfully follows the RIAA equalisation curve, maintaining accuracy to within ±0.1 dB—delivering a listening experience that’s as true to the original recording as possible.

The frequency response extends from 12 Hz to 25 kHz, fully covering the spectrum of your vinyl collection, while a selectable Rausch slope rumble filter rolls off frequencies below 50 Hz at -24 dB per octave—ideal for reducing unwanted noise from warped records or bearing vibrations.

Connectivity is equally thoughtful, with both balanced XLR and unbalanced RCA outputs, and a resistive output impedance of 520 Ω ensures smooth integration into virtually any audio setup.

Huei is powered via a high-quality 12 V external supply, compatible with global mains voltages from 100 V to 240 V, 50/60 Hz—ideal for international use.

Elegantly compact, Huei measures just 4.5 cm in height, 16 cm in width, and 8.8 cm in depth, with a solid weight of 657 grams, reflecting the premium materials and precision engineering within.

Output power (Speakers):

50 W into 4 Ω

Output power (Headphones):

2250 mW into 100 Ω

THD (Speakers):

0.003 % into 4 Ω

THD (Headphones):

0.001 % into 100 Ω

Signal-to-noise:

120 dB

Frequency response:

6 Hz – 60 kHz

Input maximum voltage:

6 V RMS

Crosstalk:

-95 dB

Output maximum voltage:

15 V RMS into 8 Ω

Operation voltage:

80-250 V AC auto-switching

Dimensions:

Length 215 mm, Width 200 mm Height 57 mm

Net weight:

1946 g

Connectivity

The system is equipped with a versatile range of inputs and outputs to suit a variety of setups:

Inputs

• 1 x XLR stereo input

• 1 x RCA stereo input

Outputs

• 4 x headphone outputs:

 – 1 x 3.5 mm jack

 – 1 x 4.4 mm balanced jack*

 – 2 x 1/4" jacks

 *Please note: the 4.4 mm output is pseudo-balanced, as the amplifier design itself is not fully balanced.

• 1 x pair of banana speaker terminals for bookshelf or compact loudspeakers

• 1 x pair of XLR outputs for volume-controlled monitoring or signal passthrough

• 1 x 12V DC jack output for powering compatible external devices

Key Features

• 50-watt amplifier into 4 Ω — ideal for driving compact bookshelf speakers with authority

• Compact desktop form factor, offering high performance without taking up space

• Integrated headphone amplifier with multiple outputs for flexible personal listening

• XLR signal passthrough, allowing for expanded system integration

• Trickle-down ULTIMA technology, inspired by Chord Electronics’ flagship designs

• Dual feed-forward error correction for enhanced accuracy and transparency

• Fully balanced signal architecture, ensuring optimal signal integrity throughout the chain

• High-frequency switch-mode power supply, delivering stable, efficient performance in a compact chassis