Amplifier Classes
There have been many developments in audio electronics, resulting in different amplifier circuit designs. Such designs can be divided into classes, of which 4 main types are relevant to audio – A, AB, H and D.
A22 Stereo PA Amplifier
953.422UK
A22
Digital stereo PA amplifier with integral media player in a compact housing. Class-D amplifier section can deliver up to 2 x 55W max. output for background music with a microphone input for announc...
- Compact and easy-to-use control panel
- Bluetooth receiver
- FM tuner
| Description | |
|---|---|
|
953.422UK
A22 Compact Stereo PA Amplifier |
A22 Stereo PA Amplifier
Digital stereo PA amplifier with integral media player in a compact housing. Class-D amplifier section can deliver up to 2 x 55W max. output for background music with a microphone input for announcements or alerts. The media player section can select between USB / microSD mp3 player, FM tuner, Bluetooth receiver, 2 stereo line inputs (rear panel RCA) and another line input on the front panel (3.5mm). Playback can be controlled from the front panel or by the supplied I.R. remote control. Four mounting brackets are provided which enable the A22 to be fitted under a counter top or against a wall for discreet installation. Two A22 units may be mounted side-by-side into a 1U rack space, which can serve smaller peripheral zones in a larger PA installation. Combine with 2 or 4 speaker units for a truly space-saving sound system with comprehensive and easy-to-use functions.
- Compact and easy-to-use control panel
- Bluetooth receiver
- FM tuner
- USB / microSD mp3 player
- Supplied with I.R. remote control
- Supplied with 4 rotatable mounting brackets
- Microphone input with separate volume control
- Power supply 230Vac, 50Hz (IEC)
- Output impedance 4 - 8 Ohms (each channel)
- Output power : 8 Ohms 2 x 25W rms / 2 x 40W max. (@ 1kHz 10% THD)
- Output power : 4 Ohms 2 x 35W rms / 2 x 55W max. (@ 1kHz 10% THD)
- Inputs : line Aux 1 (3.5mm), Aux 2 (L+R RCA), Aux 3 (L+R RCA)
- Input : mic 6.3mm jack
- Controls Mic Volume, Treble, Bass, Music Volume
- Audio source USB/microSD player, FM tuner, Bluetooth
- Antenna connection F-type (FM tuner)
- Dimensions 215 x 180 x 43mm
- Weight 820g
Support : articles
Power Ratings: RMS vs Max vs Peak
A summary explaining the key differences between RMS, Max and Peak power ratings.
Wireless Audio
A description of various wireless technologies available to musicians, presenters and performers
In the box
The box for this item contains :
- A22 stereo amplifier
- I.R. remote control handset
- 4 x mounting brackets with screws
- IEC power lead
Downloads
Instruction manual
For 953.422UK (335KB)
For 953.422UK (335KB)
UK Declaration of conformity
For 953.422UK (250KB)
For 953.422UK (250KB)
EU Declaration of conformity
For 953.422UK (237KB)
For 953.422UK (237KB)
