LIVE

Waiting for new listings…

0 other audiophiles online

Fosi Audio Q4

Fosi Audio Q4

DAC · released 2019

RRP USD$60

USD$23lowest active

USD$35average

USD$50highest

22active listings

Median used price, last 20 weeks ▼ 0.1% · range USD$34 – USD$38

Current listings

★ Track this model

Fosi Audio Q4 Mini Stereo DAC Headphone Amplifier Gaming

Fosi Audio Headphone Amplifier

Fosi Audio Q4 Mini Stereo DAC Headphone Amplifier Gaming

USD$40

US 4d ago

Sign in to Research →

Fosi Audio Q4 Mini Stereo DAC Headphone Amplifier Gaming

Fosi Audio Headphone Amplifier

Fosi Audio Q4 Mini Stereo DAC Headphone Amplifier Gaming

USD$40

US 20 Oct 2026

Sign in to Research →

Fosi Audio DAC-Q4 DAC Headphone Amp

Fosi Audio DAC

Fosi Audio DAC-Q4 DAC Headphone Amp

USD$39 ≈ GBP$29

GB 19 Oct 2026

Sign in to Research →

Fosi Audio Q4 Mini Stereo 24-Bit 192 KHz USB Headphone Amplifier - Black

Fosi Audio Headphone Amplifier

Fosi Audio Q4 Mini Stereo 24-Bit 192 KHz USB Headphone Amplifier - Black

USD$36

US 13 Oct 2026

Sign in to Research →

Fosi Audio DAC-Q4 Desktop Headphone Amp/DAC USB Optical Coax RCA 3.5mm

Fosi Audio DAC

Fosi Audio DAC-Q4 Desktop Headphone Amp/DAC USB Optical Coax RCA 3.5mm

USD$35

US 12 Oct 2026

Sign in to Research →

Fosi Audio Q4 DAC Headphone Amp for PC, Desktop Digital to Analog Audio...

Fosi Audio Digital

Fosi Audio Q4 DAC Headphone Amp for PC, Desktop Digital to Analog Audio...

USD$25

US 10 Oct 2026

Sign in to Research →

Fosi Audio DAC-Q4 DAC Headphone Amp Preamp USB/Opt/Coax RCA 2CH Black

Fosi Audio DAC

Fosi Audio DAC-Q4 DAC Headphone Amp Preamp USB/Opt/Coax RCA 2CH Black

USD$25

US 17 Sep 2026

Sign in to Research →

Fosi Audio DAC-Q4 Desktop Amp/DAC Black USB Optical Coaxial RCA 2-Ch

Fosi Audio DAC

Fosi Audio DAC-Q4 Desktop Amp/DAC Black USB Optical Coaxial RCA 2-Ch

USD$42 ≈ GBP$31

GB 30 Aug 2026

Sign in to Research →

Fosi Audio Q4 Mini Stereo 24-Bit 192 KHz USB Headphone Amplifier - Black

Fosi Audio Headphone Amplifier

Fosi Audio Q4 Mini Stereo 24-Bit 192 KHz USB Headphone Amplifier - Black

USD$35

US 26 Aug 2026

Sign in to Research →

Fosi Audio DAC-Q4 Headphone Amp for PC, Digital to Analog Audio Converter

eBay US ↓ 23%

Fosi Audio Digital

Fosi Audio DAC-Q4 Headphone Amp for PC, Digital to Analog Audio Converter

USD$23

US 19 Aug 2026

Sign in to Research →

Fosi audio Q4

Fosi Audio

Fosi audio Q4

USD$25

US 19 Aug 2026

Sign in to Research →

Fosi Audio Q4 DAC Headphone Amp for PC, Desktop Digital to Analog Audio...

Fosi Audio Digital

Fosi Audio Q4 DAC Headphone Amp for PC, Desktop Digital to Analog Audio...

USD$35

US 8 Aug 2026

Sign in to Research →

Fosi Audio DAC-Q4 Amp (No Box or cables)

eBay Australia ↓ 21%

Fosi Audio DAC

Fosi Audio DAC-Q4 Amp (No Box or cables)

USD$39 ≈ AUD$55

AU 30 Jul 2026

Sign in to Research →

Fosi Audio Q4 - Mini Stereo DAC & Headphone Amplifier 24Bit/192KHz - Used

eBay UK ↓ 16%

Fosi Audio Headphone Amplifier

Fosi Audio Q4 - Mini Stereo DAC & Headphone Amplifier 24Bit/192KHz - Used

USD$36 ≈ GBP$27

GB 10 Jul 2026

Sign in to Research →

Fosi Audio DAC-Q4 Mini Stereo Audio Headphone Amplifier HiFi

Fosi Audio Headphone Amplifier

Fosi Audio DAC-Q4 Mini Stereo Audio Headphone Amplifier HiFi

USD$42

US 6 Jul 2026

Sign in to Research →

Fosi Audio DAC-Q4 DAC Headphone Amp USB Optical Coax RCA Black

Fosi Audio DAC

Fosi Audio DAC-Q4 DAC Headphone Amp USB Optical Coax RCA Black

USD$29 ≈ GBP$22

GB 3 Jul 2026

Sign in to Research →

Fosi Audio Q4 Headphone Amp Mini Stereo DAC 24-Bit/192kHz USB

Fosi Audio

Fosi Audio Q4 Headphone Amp Mini Stereo DAC 24-Bit/192kHz USB

USD$33

US 30 Jun 2026

Sign in to Research →

Fosi Audio Q4 DAC Headphone Amp for PC, TV Digital to Analog Audio Converter

Fosi Audio Digital

Fosi Audio Q4 DAC Headphone Amp for PC, TV Digital to Analog Audio Converter

USD$50

US 26 Jun 2026

Sign in to Research →

Fosi Audio DAC-Q4 Mini Stereo Audio Headphone Amplifier HiFi

Fosi Audio Headphone Amplifier

Fosi Audio DAC-Q4 Mini Stereo Audio Headphone Amplifier HiFi

USD$48

US 25 Jun 2026

Sign in to Research →

Fosi Audio Q4 Mini Stereo Headphone Amplifier DAC Converter

Fosi Audio Headphone Amplifier

Fosi Audio Q4 Mini Stereo Headphone Amplifier DAC Converter

USD$36 ≈ GBP$27

GB 15 Jun 2026

Sign in to Research →

Fosi Audio Dac-Q4 Headphone Amplifier

Fosi Audio Headphone Amplifier

Fosi Audio Dac-Q4 Headphone Amplifier

USD$41 ≈ GBP$31

GB 11 Jun 2026

Sign in to Research →

Fosi Audio Q4 Mini Stereo 24-Bit 192 KHz USB Headphone Amplifier - Black

Fosi Audio Headphone Amplifier

Fosi Audio Q4 Mini Stereo 24-Bit 192 KHz USB Headphone Amplifier - Black

USD$25

US 21 May 2026

Sign in to Research →