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.
IWA In-Wall Amplifiers with Bluetooth
953.081UK
IWA215B
Stereo amplifier units for background music and public address in a minimalist housing for installation into cavity walls and ceilings. Class-D amplifier design operates cleanly and efficiently wit...
- Fig.8 mains power input
- Bluetooth on/off defeat switch
- Optical digital audio input
IWA In-Wall Amplifiers with Bluetooth
Stereo amplifier units for background music and public address in a minimalist housing for installation into cavity walls and ceilings. Class-D amplifier design operates cleanly and efficiently with minimal heat dissipation, combined with an internal digital switch-mode power section, which enables easy connection directly from the local mains supply. Bluetooth compatibility enables wireless streaming of audio files from a smart phone or other enabled device in addition to 3.5mm Aux input and an optical digital audio input, ideal for integrating into A-V systems. For discreet and trouble-free installation without any need for table-top or cabinet installation, these amplifiers can be combined with many different speaker types to provide the ideal sound system for any small to medium space or deployed in numbers to create a wide area sound installation.
- Fig.8 mains power input
- Bluetooth on/off defeat switch
- Optical digital audio input
- 3.5mm stereo Aux input and output
- Onboard master volume control
- Bluetooth with unique serial ID
- Power supply 100-240Vac, 50/60Hz (fig.8)
- Bluetooth version 4.0
- Minimum impedance 4 Ohms per output
- Line input 3.5mm stereo aux & optical digital audio
- Line output 3.5mm stereo jack
- Dimensions 122 x 89 x 33mm
- Weight 150g
Versions
| 953.081UK | 953.083UK | 953.085UK | |
|---|---|---|---|
| Output power : 4 Ohms | 2 x 15W | 2 x 30W | 4 x 15W |
| Speaker outputs | L-/L+/R-/R+ screw terminals (Euroblock) | L-/L+/R-/R+ screw terminals (Euroblock) | 2 x L-/L+/R-/R+ screw terminals (Euroblock) |
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 :
- IWA series in-wall amplifier
- Fig.8 mains power lead
- 2 x 3m speaker cables
Downloads
Instruction manual
For 953.081UK (201KB)
For 953.081UK (201KB)
UK Declaration of conformity
For 953.081UK (250KB)
For 953.081UK (250KB)
EU Declaration of conformity
For 953.081UK (240KB)
For 953.081UK (240KB)
