Fosi Audio BT20A MAX: a 2.1-channel Bluetooth stereo amplifier, Class D with PFFB and rated 300W x2, here in its 48V power supply version. Bluetooth 6.0 handles phone and laptop streaming, and the 2.1 layout runs a stereo pair plus a subwoofer from one box, which suits desktop, bookshelf and small-room systems.
Who the Fosi Audio BT20A MAX is for
Bookshelf systems built from scratch: The 2.1 layout lets you skip a separate sub amp entirely.
Desktop and small-room setups: A stereo pair plus a subwoofer is what most of these systems need, and one box covers it.
Phone and laptop streamers: Bluetooth 6.0 connects those sources without extra hardware, while wired inputs handle your main source.
Fosi Audio BT20A MAX key specs
Channels: 2.1
Amplifier type: Class D with PFFB
Rated output: 300W x2
Wireless: Bluetooth 6.0
Power supply: 48V version
Color: Black
Genuine Fosi Audio stock. Free shipping on every order, 45-day returns, 1-year warranty.
Fosi Audio BT20A MAX vs similar options
vs FiiO Level 1: FiiO's Horizon Level 1 is a stereo desktop amp whose Bluetooth supports LDAC; choose the BT20A MAX instead if you want its 2.1 layout to run a subwoofer from the same box.
vs SMSL AO200 MKII: Runs the MA5332MS chip with balanced inputs and Bluetooth 5.0; pick it to use your DAC's XLR outputs, the BT20A MAX for Bluetooth 6.0 and a subwoofer channel.
vs Douk Audio T6 Pro+: Puts a tube stage up front for valve character, with Bluetooth for streaming; choose it for tube flavor, the BT20A MAX for Class D power with PFFB and a 2.1 layout.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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