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Compact black amplifier with front knobs and rear terminals

Fosi Audio

Fosi Audio BT30D-S 2.1 Bluetooth 5.0 Amplifier 50W x2+100W

SKU CH-GWDT-PKDRA

Bluetooth 5.0 stereo amp delivers 50W per channel plus 100W for a subwoofer with bass and treble controls

  • Product typeSpeakers
  • Bluetooth 5.0 streams music wirelessly up to 50ft
  • 1 channel design powers two speakers plus a subwoofer
  • 50W per channel drives passive speakers with clarity
  • 100W subwoofer output adds deep bass impact
  • Texas Instruments TPA3116D2 chips deliver efficient Class D amplification

2.1 Channel Class D Amplifier

The Fosi Audio BT30D-S is a 2.1 channel Class D integrated amplifier that delivers 50 watts per channel to passive stereo speakers and 100 watts to a passive or powered subwoofer. It uses two Texas Instruments TPA3116D2 chips to achieve a combined maximum output of 200 watts.

Bluetooth 5.0 and RCA Inputs

Bluetooth 5.0 streaming works with smartphones, tablets and computers up to a quoted range of 50 ft. RCA line-level inputs provide a wired alternative for sources without wireless capability. Separate subwoofer volume, crossover frequency, bass and treble controls let listeners tailor the balance.

24 V 4.5 A Power Supply Required

The amplifier ships with a 24 volt 4.5 amp external power supply that must be used for operation. Builders who need a different voltage rail or a higher current rating should look at other models.

How it compares

Measured against everything we stock in Home Speakers & Subwoofers, at today’s prices. Recalculated every night.

Price $166.99
Pricier than about 57% of the 1,147 comparable items (median $133.99).

Specifications

Product
Product typeSpeakers

Questions about this item

Should I choose the 50 W per channel or the 100 W subwoofer output for my setup?

The BT30D-S delivers 50 W to each passive speaker and 100 W to a passive or powered subwoofer simultaneously in a single 2.1 channel configuration.

What does the 200 W maximum power figure mean when I connect speakers?

The 200 W peak represents the combined headroom of the two TPA3116D2 chips; continuous output is 50 W per main channel plus 100 W for the subwoofer channel.

How does Bluetooth 5.0 affect streaming range and stability?

Bluetooth 5.0 extends reliable streaming to about 50 ft and improves connection stability with phones, tablets and computers.

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