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Compact silver aluminium stereo amplifier with front knobs and rear gold ports

M19 BT Amplifier Stereo Receiver Bluetooth 5.3 100W x2 Class D audio component

SKU CH-311B-EHFPG

Stereo amplifier delivering 100 W per channel into 4 Ω via dual TI TPA3116D2 Class D chips, Bluetooth 5.3 to 60 feet, optical, coaxial, RCA and 6.5 mm mic inputs, plus bass and treble knobs

  • Bluetooth 5.3 delivers stable wireless audio up to 60 feet
  • Dual TI TPA3116D2 chips produce 100 W per channel into 4 ohms
  • Bass and treble knobs plus remote give instant tone control
  • Optical, coaxial, RCA, 3.5 mm AUX and 6.5 mm mic inputs cover every source
  • Ultra-compact aluminium chassis with gold-plated connectors resists oxidation

What the M19 BT Amplifier is and who it fits

The M19 BT Amplifier is a compact Class D stereo receiver that delivers up to 100 watts per channel into a 4 ohm load. It uses two Texas Instruments TPA3116D2 chips to drive passive or active speakers in home, office or outdoor setups. The unit accepts Bluetooth 5.3, optical, coaxial, RCA and 6.5 mm microphone inputs, plus a 3.5 mm headphone output. It is not suited for buyers who need multichannel surround decoding or network streaming built in.

Thermals noise and power draw in normal use

The amplifier runs from an external 24 V, 5 A power adapter that can supply up to 200 watts total. Its aluminium chassis acts as the heatsink, so the enclosure stays warm but not hot during typical listening sessions. Class D operation keeps idle power low and fan noise absent, while the quoted 0.04 % THD figure indicates clean output at rated power. No internal fan means completely silent operation in quiet rooms.

The specification that decides fit

Bluetooth 5.3 provides a wireless range of about 60 feet with automatic reconnection after the initial pairing. If your installation relies on stable streaming from a phone or tablet across that distance, the version 5.3 radio is the deciding factor; systems that require Bluetooth 5.4 or wired-only connectivity should look elsewhere.

Highlights

  • Bluetooth 5.3 delivers stable wireless audio up to 60 feet
  • Dual TI TPA3116D2 chips produce 100 W per channel into 4 ohms
  • Bass and treble knobs plus remote give instant tone control
  • Optical, coaxial, RCA, 3.5 mm AUX and 6.5 mm mic inputs cover every source
  • Ultra-compact aluminium chassis with gold-plated connectors resists oxidation

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect passive speakers to the M19 BT Amplifier and what is the impedance requirement?

Connect passive speakers to the speaker terminals using speaker wire; the amplifier delivers 100 W x 2 at 4 ohms and can drive 200 watt 8 ohm passive speakers with the 24V/5A power adapter.

What maintenance does the M19 BT Amplifier require over time?

The gold-plated RCA, optical, coaxial and 6.5 mm microphone connectors resist oxidation; keep the aluminum housing vents clear of dust and ensure the 24V/5A power adapter remains ventilated for reliable operation.

What thermal or power limit appears first during extended high-volume playback?

The 24V/5A power adapter caps continuous output at 200 watts total, so sustained full-power use will hit the adapter’s current limit before the dual TPA3116D2 chips reach their thermal ceiling.

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