Adastra Background 40W Speaker System PA IP33 Sound System Bluetooth USB

Out of stock

This bundle consists of the Adastra DM40 amplifier, 2x Speaker horns and cabling. 

100V line mixer-amp with a digital amplifier in a compact housing. Onboard audio player accepts USB media for digital audio or can be tuned to FM radio stations. In Bluetooth mode, a smartphone or tablet may be paired with the DM25 for wireless audio playback. Mono output to either 100V line or 4-16 ohms speaker load is connected via spring terminals on the rear panel. All-in-one solution for small sound installations.

Bluetooth connectivity
Integral USB player and FM tuner
100V line or 4-16 Ohms operation

Power supply: 230Vac, 50Hz (IEC)
Audio source: USB player, FM tuner and Bluetooth receiver
WightBluetooth version: 2.1
Controls: Treble, Bass, MP3, Aux, Mic
Microphone: inputs 6.3mm jack (unbalanced)
Line input: 2 x RCA (summed to mono)
Line output: 2 x RCA
Speaker: outputs COM, 100V and 4-16 Ohms (spring terminals)
Antenna connection: Spring terminal

280 x 205 x 67 mm

1.74 kg



Low Impedance Horn 8" 15W

A low impedance round PA horn for general purpose and contract industrial installations. Made from aluminium and fitted with sturdy steel adjustable mounting brackets and 120mm of good quality two core speaker cable.

Power rms 15W
Frequency response 300Hz - 8kHz
SPL @ 1W/1m 100dB

200 x 210mmØ


Delivery & Returns

Free Delivery

This is offered on all products regardless of order value to all mainland UK postcodes. Your purchase will be with you within 3 working days of your order being placed.

If you are in the Scottish Highlands, Northern Ireland, Isle of Man and the Channel Isles you will still get free delivery but your order may take up to 5 working days to get to you.


I need my products quickly- can you help?

Absolutely!  At check out you can select the option that suits you best.

We offer Next day, Saturday, Pre-10am and Pre-12pm delivery.

Unfortunately these options are not yet available for customers in the Scottish Highliands, Northern Ireland, Isle of Man and the Channel Isles.


When is the cut off for Next day delivery?

If you place your order before 2pm Monday- Friday, we will dispatch the same day.


For more information, including International delivery please click here.



Our returns department aims to help you as quickly as possible with any issues you may have with your product. 

Please click here for more information on returning products.