PT-AA220
2x 20W Class-D Audio Amplifier
The PT-AA220 is a compact digital amplifier featuring Class-D amplification, providing either 2x 20W stereo output at 4Ω or a bridged 40W mono output at 8Ω, selectable via bridge connection. It offers two analogue …
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The PT-AA220 is a compact digital amplifier featuring Class-D amplification, providing either 2x 20W stereo output at 4Ω or a bridged 40W mono output at 8Ω, selectable via bridge connection. It offers two analogue line-level inputs, a balanced microphone input with 48V phantom power, and a line-level loop output for cascading multiple units or integration with additional audio devices, with volume control on the loop output. The fanless, antistatic enclosure ensures silent operation and protection against electrostatic discharge, with control available via front/top panel, IR remote, or RS232 interface. Additional features include switchable inputs, EQ controls for volume, bass, and treble, automatic muting, and a noise gate to minimise background noise, supporting installations that require reliable performance in space-efficient deployments.
Product familyPureToolsCategoryHardwareRelease year2017Documentation as of10.11.2026 · Version 2Country of originChinaAvailable languages12 languagesDocuments✓ Manual✓ Datasheet– Quick start guideCE declaration ↗Compliance
Features
- High performance amplifier class-D, 40W mono (8Ω) or 2x 20W stereo (4Ω)
- 2 analog audio inputs, mic-input with 48V phantom power
- Line level loop output for cascading or integration of multiple amplifiers
- Auto mute and noise gate functions, dual mono function
- Antistatic case without fans, control via front and top panel, IR and RS232
Scope of delivery
- 1x PT-AA220 2x 20W (Class D) 4/8Ω Audio Amplifier
- OPTIONAL: PT-IRK-AA220 IR Kit for PT-AA220 incl. Remote Control & IR Receiver Cable
- OPTIONAL: PTM-RS100 Universal RS232 Cable with Adjustable Pin Settings
High-performance and highly efficient Class D amplifiers provide 40W mono /20W per channel stereo
DIGITAL AMPLIFICATION
High-performance and highly efficient Class D amplifiers save energy and provide 40W mono (20W per channel stereo @4 Ohms) at 8 Ohms for each output zone.
LOOP OUT
The loop output allows for flexible scalability. It provides transmission of the input signal to the next amplifier or it can be simply used as a line level output, making the integration between multiple units or other hardware easier.
SWITCHABLE INPUT
Dual switchable inputs as well as a separate MIC make this a comprehensive all-in-one audio presentation solution.
FLEXIBLE MIC INPUT
All microphones are supported - 48V phantom power, dynamic MIC and wireless MIC. Combined with its auto mute feature and built in noise suppression, ensures perfect sound reproduction mixed to the output every time.
EQ CONTROL
To perfectly adjust your system to the environment, volume, bass and treble controls are provided via front panel button IR remote & RS232.
COMPACT SIZE
All of this technology is packed into a compactsized enclosure, for installation into furniture or a professional rack room.