Duo vs Zesto Audio Andros PS-1
The Andros PS-1's mm gain is 45 dB against the Duo's 40 dB, its mc gain 65 dB against 52 dB, and its output voltage 10.0V RMS against 15.0V RMS. Both share output impedance (100Ω).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPhono Pre-Amps
Estimated price (community-sourced)
$4,500
Around — community and catalog average, updates slowly
About the Duo
The Sutherland Engineering Duo is a dual-mono, two-chassis solid-state phono preamplifier for moving-magnet and moving-coil cartridges. Each channel has its own enclosure, and gain and cartridge loading are configured independently with supplied gold-plated shunts. Five gain settings are available—40, 46, 52, 58, and 64 dB—as are five loading options: 47k, 1k, 475, 200, and 100 ohms. The Duo uses precision passive components, including polystyrene and polypropylene capacitors and 1% metal-film resistors. It is also available in a Duo LPS version with an internal linear power-supply board incorporating a toroidal transformer and filtering.
Specifications
Analog Output
Analog signal output specifications
- Output Voltage
- 15.0V RMS
- Output Impedance
- 100Ω
Phono Preamplifier
Phono stage specifications
- MM Gain
- 40 dB
- MC Gain
- 52 dB
- Adjustable Loading
- Yes
- Loading Options
- 100Ω, 200Ω, 475Ω, 1000Ω, 47000Ω
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 432 × 64 × 305 mm (W × H × D)
- Weight
- 4.99 kg (11 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions