Chord Electronics HUEI Phono Stage:
Type:
Solid-State, Dual-Mono Phono Preamplifier (MM/MC)
Inputs & Connectivity:
Inputs: 1 x pair RCA (for turntable)
Outputs: 1 x pair RCA (line-level to amplifier)
Input Impedance (MM): 47 kΩ
Input Impedance (MC): 100 Ω
Input Capacitance (MM): Adjustable via internal DIP switches (100pF or 220pF)
Gain Selection: Via internal DIP switches
Gain (MM): 40 dB
Gain (MC): 60 dB
Additional Input: 1 x USB Type-C (for firmware updates only)
Performance & Circuitry:
Frequency Response: 20 Hz - 20 kHz (+0.5 / -1 dB)
Signal-to-Noise Ratio (MM): > 82 dB ('A'-weighted, ref. 5mV input)
Signal-to-Noise Ratio (MC): > 74 dB ('A'-weighted, ref. 0.5mV input)
Total Harmonic Distortion (THD): < 0.0015% (1kHz, MM, ref. 2V out)
Channel Separation: > 75 dB (1kHz)
Circuit Topology: Dual-monaural, fully discrete, Class A, DC-coupled
Power Supply: External, low-noise, linear regulated
Power Supply:
PSU Input: 100-240V AC, 50/60Hz
PSU Output: 12V DC, 1A (regulated) to HUEI unit
Power Consumption: 8 Watts (max)
General:
Dimensions - HUEI Unit (W x H x D): 160 x 45 x 72 mm
Dimensions - Power Supply (W x H x D): 65 x 30 x 95 mm
Weight - HUEI Unit: 0.35 kg
Weight - Power Supply: 0.23 kg
Casework: Extruded aluminum with stainless steel end plates
Finish: Anodised black
Included Accessories: External 12V linear power supply unit (with international adapters), USB-C cable for updates, user manual.
Note: Gain and capacitance settings are adjusted internally via DIP switches. Factory default is set for Moving Magnet (MM) cartridges.