The Fosi Audio BT30D Mini is a Bluetooth stereo integrated amplifier built around the Texas Instruments TPA3255 Class-D chip. It combines five digital and analog inputs — including a phono stage for MM cartridges — with Bluetooth 5.0 wireless streaming in a compact aluminum chassis. This page covers the complete technical specifications for the BT30D Mini.
Overall Rating
Fosi Audio BT30D Mini — 8.8 / 10 — Best-in-class input flexibility for under $100. Excellent value for passive speaker setups with vinyl and wireless capability.
Full Specifications
Amplifier
Amplifier Chip
Texas Instruments TPA3255
Class
Class-D
Output Power (4Ω)
Up to 160W × 2 (peak)
Output Power (8Ω RMS)
~50W × 2
Channels
2.0 stereo
Tone Controls
Bass ±10 dB, Treble ±10 dB
Performance Measurements
SNR
≥95 dB
THD+N
≤0.05% (at rated power)
Channel Separation
≥70 dB
Frequency Response
20Hz – 20kHz ±1 dB
Wireless
Bluetooth Version
5.0
Codecs
aptX, SBC
Range
~10m / 33 ft (line of sight)
Inputs
Bluetooth
Bluetooth 5.0 with aptX
USB
USB Type-B digital audio (UAC)
Optical
TOSLINK (up to 192kHz/24-bit)
Coaxial
RCA coaxial digital (up to 192kHz/24-bit)
RCA Line In
Unbalanced stereo RCA
Phono (MM)
Moving Magnet phono input for turntables
Input Selection
Front panel selector knob
Outputs
Speaker Outputs
Binding posts (stereo, accepts banana plugs or bare wire)
RCA Line Out
Unbalanced stereo RCA (for subwoofer or zone 2)
Headphone Out
3.5mm (pass-through; not a dedicated headphone amp stage)
Power & Physical
Power Supply
External DC 24V / 5A adapter (included)
Chassis
Aluminum alloy
Dimensions
153 × 143 × 53 mm
Weight
~520 g
Color Options
Black, Silver
Front Panel Controls
Volume knob, Input selector, Bass/Treble knobs, Power button
In the Box
Included
BT30D Mini unit, DC 24V/5A power adapter, user manual
Not Included
Speaker cables, RCA cables, optical/coaxial cable, Bluetooth remote
The Fosi Audio BT30D is a powerful 2.1 channel audio amplifier that delivers up to 50 Watts x 2 + 100 Watts of continuous power. Featuring Bluetooth 5.0 technology for seamless wireless audio streaming, this compact amplifier is designed for both home and outdoor use, compatible with passive...
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