Classic Audio by Michael Fidler

SPARTAN Series Products

SPARTAN 5 Phonostage

Bringing the most out of a single-stage phono preamp for high-efficiency of performance, price, power consumption, and features.

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Available to ship worldwide! RIAA accuracy to ±0.25dB, second order subsonic filtering, and mono switching. Uniquely weaving double-stage features around a single amplifier design, the SPARTAN 5 is a truly complete pint pot performer, representing a significant step-up from integrated and contemporary external phonostages.

Price including UK P&P: £150

SPARTAN 15 Phonostage

High spec re-engineered double stage design that further builds upon the S10, realising exceptional performance with MM cartridges at an affordable price point.


Available to ship worldwide! RIAA accuracy to ±0.1dB, third order subsonic filtering, low frequency crossfeed, and mono switching. A new power supply circuit extends headroom past 10V RMS output, while increased gain splitting between the two amplifier stages further reduces distortion. £50 cheaper, despite improved performance!

Price including UK P&P: £330

SPARTAN 10 Phonostage (Discontinued)

Double-stage innovation extracts new detail out of MM cartridges while stopping low-frequency noise in its tracks.

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DISCONTINUED Low-frequency crossfeed, RIAA accuracy to ±0.1dB, third order subsonic filtering, and mono switching. The circuit design realises wonderfully low distortion by reducing frequency compensation on the input amplifier and carefully sharing the gain between two stages, resulting in the best performance at three figures and beyond.

Price including UK P&P: £380

More to follow...

Other SPARTAN amplifiers for headphones and line level are currently in development for release during 2023...

SPARTAN 30 prototype

High quality products take time to develop and the SPARTAN 30 headphone and line amplifier is no exception. The soon to be finalised design will feature a new volume control circuit topology, precision potentiometer (not shown here!), with over 10V RMS output into a 120Ω headphone load.