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Summary of Contents for Adastra DM25
- Page 1 DM25 Compact 100V mixer-amplifier with Bluetooth® Item ref: 953.108UK User Manual Caution: Please read this manual carefully before operating Damage caused by misuse is not covered by the warranty 953.108UK User Manual...
- Page 2 Introduction Thank you for choosing the Adastra DM25 compact 100V mixer-amplifier as part of your public address system. This amplifier is designed to offer high quality, dependable service for mobile and installed systems. Please read this manual fully and follow the instructions to achieve the best results with your new purchase and to avoid damage through misuse.
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Page 3: Front Panel
Further amplifiers can be connected from the rear Out RCA sockets (11). The DM25 can be used either with 100V line or standard low impedance speakers. Speaker connections are provided as spring terminals on the rear panel (13, 14, 15) -
Page 4: Low Impedance Systems
The microphone should not be able to “hear” the speakers, which can cause feedback (squealing or howling noise). Note: If a mic or line input is not connected to the DM25, the initial test can be made using the built-in media player. See section below for instructions. -
Page 5: Media Player
Media Player The DM25 is equipped with a built-in digital audio player which has 3 main modes. Pressing the MODE button selects through Bluetooth, USB and FM tuner. Output from this media player is governed by the Media level control (7) on the front panel and also by pressing and holding the Previous or Next buttons. -
Page 6: Bluetooth Mode
Select to pair with this device and once successful, wireless audio playback should be enabled through the media player of the DM25. If this does not happen, check that there are not more than 1 available devices with the ID “MP3A” and ensure that the volume is turned up on the sending device. -
Page 7: Specifications
Specifications Power supply 230Vac, 50Hz (IEC) Output power 25Wrms Audio source USB player, FM tuner and Bluetooth receiver Bluetooth version Controls Treble, Bass, MP3, Aux, Mic Microphone input 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) - Page 8 Disposal: The “Crossed Wheelie Bin” symbol on the product means that the product is classed as Electrical or Electronic equipment and should not be disposed with other household or commercial waste at the end of its useful life. The goods must be disposed of according to your local council guidelines. Errors and omissions excepted.
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Questions and answers
Good afternoon I have just installed your dm 25 with 2 speakers but they are very quiet and I don't seem to be able to turn up the volume
To increase the volume on the Adastra DM25 with two speakers:
1. Ensure both speakers are connected in parallel, with total speaker load no less than 4Ω.
2. After turning on the amplifier, turn up the appropriate volume control:
- For Aux input, gradually increase the Aux rotary control.
- For a microphone, gradually increase the Mic volume.
- For built-in media player, increase the Media level control.
Make sure the microphone does not pick up sound from the speakers to avoid feedback.
This answer is automatically generated