Adastra je profesionální audio značka specializující se na systémy veřejného ozvučení, instalační audio, 100V linky ampozvučovací zařízení a reproduktory pro komerční prostředí.
Adastra is a well-established brand within the professional audio and installation market, known for providing comprehensive public address (PA) solutions. Owned by the AVSL Group, Adastra designs and manufactures a wide range of audio equipment tailored for commercial and educational sectors. Their product lineup includes rackmount mixer-amplifiers, wall-mounted speakers, ceiling speakers, portable PA units, and induction loop systems designed for hearing assistance.
Renowned for reliability and versatility, Adastra products are commonly found in schools, offices, retail stores, and hospitality venues. The brand focuses on delivering high-quality audio distribution solutions, including 100V line systems that allow for long-distance cable runs and multiple speaker setups. Modern Adastra amplifiers often feature integrated media players with Bluetooth, USB, and FM tuning connectivity, bridging the gap between traditional PA functionality and modern digital streaming needs.
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U 100V linkových systémů připojte amplifier's '100V' terminal to the positive (+) speaker connection and the 'COM' terminal to the negative (-) speaker connection. Ensure you use speakers fitted with 100V transformers and that the total wattage nepřesahuje 90 % hodnoty amphodnocení záchranáře.
Most Adastra mixer-amplifiers have separate terminals for low impedance (4-16Ω) and 100V line operation. You must choose ONE method; do not connect speakers to both the 8Ω and 100V terminals simultaneously to avoid damage.
On capable models, select the Bluetooth input mode using the 'Mode' or 'Input' button. The display should flash or indicate pairing mode. Hledat the device ID (often 'Adastra' followed by the model number) on your smartphone and connect.
The 'Talkover' or 'VOX' function on Adastra amplifiers automatically lowers the volume of music (BGM) when a signal is detected on the microphone input, allowing announcements to be heard clearly over the audio.