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Fosi Audio GR40

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Versatile tube DAC preamplifier and headphone amplifier supporting Bluetooth/USB/Optical/Coaxial inputs. Features priority mode for headphones and warm tube sound signature.

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eBay

Fosi Audio GR40 Bluetooth USB DAC Headphone Amplifier Tube Preamp &Headphone Amp Auction bid
- Feb 10, 2026

eBay

Fosi Audio GR40 tube preamp with DAC $162 Feb 5, 2026

eBay

Fosi Audio GR40 Tube Preamplifier with DAC, Stereo Headphone Amplifier Black $170 Jan 5, 2026

eBay

Fosi Audio GR40 – DAC à Tube HiFi avec Amplificateur Casque et Préampli – Décoda €139 Nov 14, 2025

eBay

Fosi Audio GR40 Tube Preamplifier with DAC,Stereo Headphone Amplifier 3.5mm Home $201 Oct 14, 2025

eBay

2x Voshkod 6ZH1P-EV Matched Pair 6AK5 6J1 Fosi Audio GR40 GR70 MC331 X2 X4 T20X £26 Oct 11, 2025

eBay

Fosi Audio GR40 – Röhren-DAC HiFi mit Kopfhörerverstärker und Vorverstärker – US €139 Sep 8, 2025

eBay

Fosi GR40 DAC Röhrenvorverstärker Stereo Verstärker für Kopfhörer Bluetooth DE €143 Dec 27, 2024

eBay

Fosi Audio GR40 Tube Preamp w/DAC Stereo Headphone Amplifier for Active Speakers £119 Nov 22, 2024

eBay

Fosi Audio GR40 Tube Preamp w/DAC Stereo Headphone Amplifier for Active Speakers $119 Nov 21, 2024

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