Indledning
This manual provides essential information for the safe and efficient operation of your TOA A-912MK2 8-Channel 120 watt Modular Mixer Amplifier. Please read this manual thoroughly before use and retain it for future reference.
Sikkerhedsoplysninger
Always observe the following safety precautions to prevent electric shock, fire, or injury.
- Udsæt ikke dette apparat for regn eller fugt.
- Bloker ikke nogen ventilationsåbninger.
- Sørg for korrekt jording.
- Overlad al service til kvalificeret servicepersonale.
- Afbryd strømmen før rengøring eller servicering.
Opsætning
Udpakning
Fjern forsigtigt amplifier from its packaging. Inspect for any signs of damage during transit. Retain the original packaging for future transport or storage.
Fysisk placering
Placer amplifier on a stable, flat surface. Ensure adequate ventilation around the unit. Avoid placing it near heat sources, direct sunlight, or areas with excessive dust or moisture.
Forbindelser
Før du foretager nogen tilslutninger, skal du sørge for, at amplifier is powered off and unplugged from the mains supply.
- Input Modules: The A-912MK2 is a modular mixer amplifier. Insert appropriate input modules (e.g., microphone, line, telephone) into the designated slots on the rear panel. Ensure modules are securely seated.
- Højttalerudgange: Tilslut dine højttalere til amplifier's output terminals. Observe correct polarity (+ to + and - to -). This amplifier supports various speaker impedances; refer to the specifications for compatible loads.
- Eksterne enheder: Connect any external audio processing equipment (e.g., equalizers, effects units) to the amplifier's send/return jacks if available.
- Strømtilslutning: Once all audio connections are made, connect the power cord to the amplifier and then to a suitable AC power outlet.
Betjeningsvejledning

Figur 1: Frontpanel view of the TOA A-912MK2 Modular Mixer Amplifier, showing input level controls, tone controls, master volume, and power switch.
Tænd/sluk
- To power on, ensure all volume controls are at their minimum setting, then press the power switch located on the front panel. The power indicator will illuminate.
- To power off, turn down all volume controls, then press the power switch.
Indgangsniveaujustering
Each input channel has a dedicated level control knob on the front panel. Adjust these knobs to set the individual volume for each connected source. Start with low levels and gradually increase to avoid sudden loud sounds.
Tonekontrol
De amplifier features bass and treble tone controls. Use these to adjust the overall tonal balance of the audio output. Turn clockwise to boost frequencies and counter-clockwise to cut them.
Master Volume
The large master volume knob controls the overall output level of the amplifier. Adjust this to set the final listening volume for your speakers.
Opretholdelse
- Rensning: Brug en blød, tør klud til at rengøre ydersiden af ampBrug ikke flydende rengøringsmidler eller slibende materialer.
- Ventilation: Periodically check that the ventilation openings are free from dust and debris to ensure proper airflow.
- Opbevaring: Hvis enheden opbevares i længere tid, skal den afbrydes fra strømmen og opbevares et køligt og tørt sted, helst i originalemballagen.
Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen strøm | Power cord disconnected; power outlet faulty; power switch off. | Check power cord connection; try a different outlet; ensure power switch is on. |
| Ingen lydudgang | Volume controls too low; speaker connections faulty; input module not seated correctly. | Increase master and input volumes; check speaker wiring; re-seat input modules. |
| Forvrænget lyd | Input level too high; speaker impedance mismatch; faulty speaker. | Reduce input levels; verify speaker impedance matches amplifier; test with different speakers. |
Specifikationer
| Feature | Detalje |
|---|---|
| Mærke | Toa |
| Model | A-912MK2 |
| Output Wattage | 120 watt |
| Kanaler | 8-Channel (Modular) |
| Materiale | Plast |
| Farve | Sort |
| Kompatible enheder | Alle |
| ASIN | B008ZTABSY |
| Dato først tilgængelig | 19. august 2012 |
Garantioplysninger
TOA products are designed for reliability and performance. This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. Specific warranty terms and duration may vary by region. Please retain your proof of purchase for warranty claims.
For detailed warranty information, please refer to the warranty card included with your product or visit the official TOA webwebsted.
Kundesupport
If you encounter issues not covered in the troubleshooting section or require further assistance, please contact TOA customer support. Have your product model number (A-912MK2) and serial number ready when contacting support.
For the most up-to-date contact information, please visit the official TOA webwebstedet eller se kontaktoplysningerne på din produktemballage.





