in 19 offers
The lowest price for Fosi Audio Box X4 Phono Preamplifier right now is $61.47 at AliExpress.com - AliExpress-226247430, compared across 7 retailers.
The all-time low was $61.42 on 6 Sept 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 6 Oct 2026.
Fosi Audio Box X4 Phono Preamplifier
Last updated at 06/10/2026 20:37:39
Fosi Audio Phono Preamp for Turntable Phonograph Preamplifier With Vacuum Tube Amplifier HiFi BOX X4
Free delivery
Fosi Audio Box X4 Tube Amplifier Phono Preamp For Mm Turntable
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fosi Audio BOX X4 Phono Preamplifier -
Free delivery between Wed – Tue
Fosi Audio Box X4 Phono Preamp with Vacuum Tubes for MM Turntable Phonograph Record Player with Volume Bass Treble Control
Delivery between 11–15 Oct $41
Fosi Audio Box X4 Phono Preamp with Vacuum Tubes for MM Turntable Phonograph Record Player with Volume Bass Treble Control
Delivery between 13–16 Oct $29
Box X4 Phono Preamp with Vacuum Tubes for MM Turntable Phonograph Record Player with Volume Bass Treble Control
Free delivery between 16–21 Oct
Fosi Audio Box X4 Phono Preamp & Headphone Amplifier 6J1 Vacuum Tube Preamp for MM Turntable Phonograph Preamp Record Player Preamp with Volume Bass T
Free delivery between 14–20 Oct
| Depth | 3.97 inches |
| Height | 1.37 inches |
| Width | 4.72 inches |
| Audio Inputs | 3.5mm AUX, MM turntable |
| Input Types | 3.5mm AUX, MM turntable |
Fosi Audio Phono Preamp for Turntable Phonograph Preamplifier With Vacuum Tube Amplifier HiFi BOX X4
Free delivery
Fosi Audio Box X4 Tube Amplifier Phono Preamp For Mm Turntable
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fosi Audio BOX X4 Phono Preamplifier -
Free delivery between Wed – Tue
Fosi Audio Box X4 Phono Preamp with Vacuum Tubes for MM Turntable Phonograph Record Player with Volume Bass Treble Control
Delivery between 11–15 Oct $41
Fosi Audio Box X4 Phono Preamp with Vacuum Tubes for MM Turntable Phonograph Record Player with Volume Bass Treble Control
Delivery between 13–16 Oct $29
| Depth | 3.97 inches |
| Height | 1.37 inches |
| Width | 4.72 inches |
| Audio Inputs | 3.5mm AUX, MM turntable |
| Input Types | 3.5mm AUX, MM turntable |
