Fosi Audio BT20A Pro

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Product details

The Fosi Audio BT20A Pro 2.0 channel amplifier offers an output power of 2 x 125 watts (4 ohms). The built-in TI TPA3255 chip amplifier features a feedback design and a high-speed gate driver error port for efficient and high-quality audio performance with a low idle loss of less than 2.5W. The chip amplifier also features interchangeable op-amps for a customised approach. In addition, you can replace the 2 plug-in NE5532 op-amps with LME49720HA, MUSES02, OPA2604AP, OPA2134PA, LM4562 or NJM4556AD op-amps to achieve different sound qualities. Bluetooth pairing can be removed by pressing and holding the volume control for 5 seconds, and it also has a memory function for easy pairing and a warning tone. The BT20A Pro home audio amplifier has a sound control design so you can experience sound without effects.

Key specifications

Amplifier Equipment
Bluetooth

General information

Item number
57647032
Manufacturer
Fosi Audio
Category
Stereo amplifiers
Manufacturer no.
BT20A PRO-LG-32V
Release date
15.4.2025
Sales rank in Category Stereo amplifiers
6 of 484
May include power adapter
No

Colour

Colour
Blue
Exact colour description
Dark Blue

Amplifier properties

Audio channel
2.0 Channel, Stereo
Nominal power
125 W
Music power (RMS)
2x 125 W
Number of speaker groups
2
Amplifier Equipment
Bluetooth

Connections

Audio inputs
Stereo Cinch RCA (4x)
Audio outputs
Loudspeaker (4x)

Origin

Country of origin
China

Voluntary climate contribution

CO₂ emissions
14.88 kg
Climate contribution
CHF 0.36

Scope of delivery

Scope of delivery
32 V power supply unit, Bluetooth antenna

Product dimensions

Width
166 mm
Depth
105 mm
Weight
2000 g

Package dimensions

Length
26.90 cm
Width
20.40 cm
Height
7.30 cm
Weight
1.19 kg

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Stereo amplifiers» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Giecy
    0.6 %
  • 2.WiiM
    0.9 %
  • 3.Fosi Audio
    1.4 %
  • 4.Denon
    1.5 %
  • 5.Yamaha
    1.7 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Yamaha
    2 days
  • 2.Power Dynamics
    4 days
  • 3.Fosi Audio
    7 days
  • 3.WiiM
    7 days

Return rate

How often is a product of this brand in the «Stereo amplifiers» category returned?

Source: Digitec Galaxus
  • 2.WiiM
    4.4 %
  • 3.Yamaha
    4.6 %
  • 4.Fosi Audio
    4.9 %
  • 5.Giecy
    5.3 %
  • 6.Power Dynamics
    7.2 %
Source: Digitec Galaxus