Name: Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier 300W x2 TPA3255
Brand: Fosi Audio
SKU: B07JVFY27T
Price: 99.99 USD
Availability: OnlineOnly
Rating: 4.5 (2800 reviews)

Overview

The Fosi Audio BT20A Pro is a Bluetooth amplifier designed for desktop, apartment, and living-room systems that need Texas Instruments TPA3255 Class-D power, Bluetooth wireless streaming. Best-selling mini Bluetooth amp with TPA3255, bass/treble control, and replaceable op-amps for passive speakers.

Built for listeners who want measurable performance without a bulky AV receiver, the BT20A Pro focuses on clean power, useful I/O, and strong value. Standout points include Bluetooth 5.0 plus RCA input; Up to 300W x2 @4Ω with TPA3255; Bass & treble tone controls with midpoint flat setting. Use this product page to compare specs and photos before you buy on Amazon.

Key Features

Bluetooth 5.0 plus RCA input
Up to 300W x2 @4Ω with TPA3255
Bass & treble tone controls with midpoint flat setting
Swappable op-amps for custom sound signature

Who It's For

Wireless streaming to passive speakers — patio and outdoor systems, garage and workshop audio, apartments, and simple living-room setups that still want tone control or multi-channel convenience. The BT20A Pro keeps cabling light while driving real speakers.

Setup & Connectivity

On the desk or in a living-room rack, the BT20A Pro is easy to integrate: expect RCA inputs for classic HiFi and desktop sources, Bluetooth streaming for phones, tablets, and laptops, swappable op-amps for tuning the sound signature. Review the photos and feature list on this page, then buy through Amazon when you are ready — the same Fosi Audio hardware sold on the official store.

Why Choose the BT20A Pro

Choose the Fosi Audio BT20A Pro when you want bluetooth 5.0 plus rca input for wireless speaker systems without sacrificing real amplifier power. It sits in the same product family as Fosi’s popular TPA3255 amplifiers, balanced DAC preamps, and gaming DAC/AMPs — compact components that punch above their price on Amazon and the official Fosi Audio catalog.

Why Fosi Audio

Fosi Audio builds compact HiFi amplifiers, DACs, and desktop audio gear that punch above their price. Fosi Audio’s Bluetooth amplifiers bring wireless streaming to real passive speakers with tone controls, solid chipsets, and compact chassis. Shop the same products featured on Amazon with specs and photos collected here for easy comparison.