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The Zesto Audio Andros Deluxe II Tube Phonostage is a high-end, all-tube phono preamplifier that improves on the earlier Andros 1.2 model by incorporating advances from the top-tier Téssera model. It features a dual-mono PCB design for better stereo separation and uses large, high-quality built-in moving-coil step-up transformers with Mu-metal shielding to reduce noise and improve stereo imaging. The unit is fully tube-based with no solid-state devices in the signal path, employing 2x 12AX7 and 2x 12DW7 tubes. It offers selectable gain settings for both moving magnet (MM) and moving coil (MC) cartridges, with 45 or 50 dB gain for MM and 63 or 68 dB for MC. Input impedance for MM is selectable between 47k or 68k ohms, and MC loading is adjustable in 12 steps from 50 to 1000 ohms. The phonostage provides both single-ended (RCA) and balanced (XLR) inputs and outputs, with floating ground on RCA outputs and grounded XLR outputs to minimize ground loops. The chassis is made of 16-gauge zinc-plated steel to isolate from electronic interference. It includes features such as ground lift switches, easily accessible controls on the rear panel, and a dual chassis with an external power supply designed to reduce noise and improve reliability. The Andros Deluxe II is praised for its neutrality, detail retrieval, tonal extension, and very low noise floor, making it suitable for revealing the finest details in high-quality vinyl recordings. It weighs 21 lbs and measures 17" x 12" x 5". The product is hand-built in the USA and comes with a 50-hour factory burn-in on all circuits and tubes. It was awarded the 2022 Phonostage Product of the Year by The Absolute Sound and is highly recommended for serious analog enthusiasts.
Analog signal output specifications
Phono stage specifications
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The C500's mm gain is 40.5 dB against the Andros Deluxe II's 45 dB, its mc gain 53.5 dB against 63 dB, its output voltage 10.0V RMS against 9.0V RMS, and its output impedance 220Ω against 150Ω.
The Andros II's mm gain is 47 dB against the Andros Deluxe II's 45 dB, its mc gain 67 dB against 63 dB, its output voltage 8.5V RMS against 9.0V RMS, and its output impedance 10000Ω against 150Ω.
The Balance Reference's mm gain is 46 dB against the Andros Deluxe II's 45 dB, its mc gain 66 dB against 63 dB, and its output voltage 12.0V RMS against 9.0V RMS. Both share output impedance (150Ω).
The P200 TUBE PHONO's mc gain is 71 dB against the Andros Deluxe II's 63 dB, its output voltage 8.5V RMS against 9.0V RMS, and its output impedance 500Ω against 150Ω. Both share mm gain (45 dB).
Audio Research Corporation Reference Phono 3
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