Dispersion angles
Each ceiling speaker in an installation is capable of effectively providing coverage to an area defined by its dispersion angle. Here we show how to calculate the spacing of speakers to cover your installation
Ceiling Speakers and In-wall Amplifier Package
953.138UK
SL3-BT
A complete package for sound installation comprising a pair of Adastra SL ceiling speakers and an IW-series in-wall amplifier. SL ceiling speakers offer clean and intelligible sound reproduction wi...
- Complete installation package
- 2 low profile ceiling speakers
- Bluetooth or line input
Ceiling Speakers and In-wall Amplifier Package
A complete package for sound installation comprising a pair of Adastra SL ceiling speakers and an IW-series in-wall amplifier. SL ceiling speakers offer clean and intelligible sound reproduction within a small and discreet form factor. In combination with the IW amplifier, audio can be input via Bluetooth connection or wired auxiliary line input. A line output allows further amplifiers to be linked in a daisy-chain and operated from the same input signal. Supplied with a 12V power adaptor and speaker cables to provide an all-in-one solution for background music in small to medium rooms.
- Complete installation package
- 2 low profile ceiling speakers
- Bluetooth or line input
- Supplied with 12Vdc power adaptor and 2 x 3m speaker cables
- Power supply 12Vdc, 2000mA (adaptor included)
- Bluetooth version 4.0
- Auxiliary input L/G/R screw terminals (Euroblock)
- Auxiliary output L/G/R screw terminals (Euroblock)
- Speaker outputs L-/L+/R-/R+ screw terminals (Euroblock)
- Speaker : impedance 8 Ohms
- Amplifier : dimensions 124 x 40 x 27mm
- Amplifier : weight 60g
Versions
| 953.138UK | 953.139UK | |
|---|---|---|
| Power output | 2 x 15W | 2 x 30W |
| Speaker : drivers | 75mmØ (3") PP cone | 100mmØ (4") PP cone |
| Cutout | 90mmØ (each speaker) | 134mmØ (each speaker) |
| Mounting depth | 57mm | 70mm |
| Speaker : dimensions | 57 x 100mmØ (each) | 71 x 145mmØ (each) |
| Speaker : weight | 360g (each) | 600g (each) |
Support : articles
Speaker system types
Our speaker and amplifier products cover many environments and applications with a focus on clear and efficient sound coverage. Here we discuss the different types of systems
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.
Power Ratings: RMS vs Max vs Peak
A summary explaining the key differences between RMS, Max and Peak power ratings.
In the box
The box for this item contains :
- 2 x SL ceiling speakers
- 1 x IW-series in-wall Bluetooth amplifier
- 1 x 12Vdc power adaptor
- 2 x 3m speaker cables
Downloads
Instruction manual
For 953.138UK (278KB)
For 953.138UK (278KB)
UK Declaration of conformity
For 953.138UK (252KB)
For 953.138UK (252KB)
EU Declaration of conformity
For 953.138UK (243KB)
For 953.138UK (243KB)
