Fosi Audio
Showing all 7 results
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Fosi AudioAmplifiers
Fosi Audio BT20A MAX Bluetooth 6.0 Stereo Class-D Amplifier 300W with Subwoofer Output
Fosi Audio BT20A MAX is a compact TPA3255 Class-D stereo amplifier with Bluetooth 6.0 (Qualcomm QCC3095; SBC, AAC, aptX, aptX HD, aptX Adaptive, aptX Lossless and LDAC), two RCA inputs, a subwoofer output, an IR remote and a motorized volume knob. Fosi rates it at 300 W x 2 maximum and 180 W x 2 RMS at 4 ohm. It has no USB, optical or coaxial input. $249.99 with a 48 V/5 A supply at Fosi’s store (checked 2026-10-31). Compare it in our BT20A MAX vs BT20A Pro vs AIYIMA A07 Pro guide. Direct from Fosi, or Amazon US.
SKU: fosi-audio-bt20a-max -
Fosi AudioAmplifiers
Fosi Audio DS3 Portable USB DAC & Headphone Amp — 7.1 Spatial Audio + Balanced Output
Fosi Audio DS3 — pocket-size portable USB DAC and headphone amplifier under $100 with in-house 7.1-channel spatial audio algorithm that converts multichannel game audio into an expansive 360° stereo experience — no PC drivers or software needed. Dual output: single-ended 3.5 mm and balanced 4.4 mm for better channel separation with balanced-cable headphones. USB-C plug-and-play compatibility with Windows, Mac, Android, and PS5. Ideal for gaming, hi-res music on the go, or as an upgrade over any laptop/phone headphone jack. Compact enough for pocket carry, powerful enough to drive most portable and desktop cans. Direct from Fosi with our promo code, or Amazon US.
SKU: fosi-audio-ds3 -
Fosi AudioStreamer
Fosi Audio S3 HiFi Streamer, DAC and Preamp — AK4493SEQ, WiFi 6, Roon Ready, AirPlay 2
Fosi Audio S3 — full HiFi streamer + DAC + preamp in one compact chassis. Premium AKM AK4493SEQ Velvet Sound DAC (used in units 3-4× the price), Roon Ready native endpoint, AirPlay 2 for Apple ecosystems, Bluetooth 5.0 with LDAC codec for hi-res wireless, plus WiFi 6 for stable congested-network streaming. Balanced XLR + RCA preamp outputs feed any power amp — perfect matched source for AIYIMA A20 MONO or any balanced integrated. Digital inputs: USB (PCM up to 384 kHz / DSD256 native), optical, coaxial S/PDIF; analog RCA line-in accepts turntable phono pre-amps. TIDAL Connect + Spotify Connect + DLNA + web UI + Fosi app for full source flexibility. Under $300 collapses a $500 streamer + $250 DAC + $200 preamp rack into one desktop-footprint box. Direct from Fosi with our promo code, or Amazon US Prime — both buttons below.
Audiophile community verdict: See ASR forum streamer / DAC discussions
SKU: fosi-audio-s3 -
Fosi AudioStreamer
Fosi Audio S3 Lite Stream Receiver — Wi-Fi 6 + Bluetooth + LAN, 32-bit/768kHz USB-Out (Digital Transport, BYO-DAC)
StreamerFosi Audio S3 Lite Stream Receiver — Wi-Fi 6 + Bluetooth + LAN, 32-bit/768kHz USB-Out (Digital Transport, BYO-DAC)
Fosi Audio S3 Lite — 2025 stripped-down streaming transport. Wi-Fi 6 + Bluetooth + LAN feeding 32-bit/768kHz USB-out to your own DAC. Positions below the flagship Fosi S3 (which has built-in DAC + preamp). Buy the Lite if you already own a DAC or want to spec one deliberately; buy the flagship S3 for one-box streamer + DAC + preamp.
SKU: FOSI-S3-LITE -
Fosi AudioSpeakers
Fosi Audio SP601 Passive Bookshelf Speakers Pair — Orange Version
Fosi Audio SP601 — passive HiFi bookshelf speaker pair in a distinctive orange finish, engineered for music lovers who value detail, resolution, and immersive stereo imaging. Delivers accurate reproduction across classical, rock, jazz, and complex orchestral arrangements. Deep, textured bass extension pairs with a smooth midrange and precise top-end. Passive design — needs a stereo amp or integrated receiver. Natural pairing with the Fosi BT20A MAX for a complete Fosi stereo rig, or a pair of AIYIMA A20 MONO monoblocks for a reference-grade dual-mono chain. Direct from Fosi with our promo code, or Amazon US.
SKU: fosi-audio-sp601 -
Fosi AudioAmplifiers
Fosi Audio ZA3 Balanced Dual-Mode Class-D Amplifier — Stereo + Mono Switchable
Fosi Audio ZA3 is a compact TPA3255 Class-D power amplifier with an XLR/TRS combo input, RCA inputs, a filtered subwoofer output, a 12 V trigger and a front-panel stereo/mono switch. One unit drives a pair of passive speakers in stereo mode; in mono mode one unit drives one speaker, so two units can run as a monoblock pair. It is a power amp only: no DAC, preamp or Bluetooth. Fosi’s store lists it from $109.99 without a power supply, $129.99 with a 32 V/5 A supply and $149.99 with a 48 V/5 A supply (checked 2026-10-31). Read our ZA3 review roundup for the independent measurements. Direct from Fosi, or Amazon US.
SKU: fosi-audio-za3
