1. Introducció
This manual provides essential information for the safe and efficient operation of your TOA A-9120SM2 Digital Matrix Mixer and Single Amplifier. Please read this manual thoroughly before using the product and retain it for future reference. The TOA 9000M2 Series redefines conventional mixer/amplifier categories by combining a modular matrix mixer, digital signal processor (DSP), and amplifiers into a compact, two-rack-space package. It is designed for multi-zone paging, music distribution, and room-combining applications.
2. Informació de seguretat
Always observe the following safety precautions to prevent personal injury and property damage.
- Font d'alimentació: Connect the unit only to the specified power supply (120VAC, 60Hz). Ensure the power cord is securely plugged in and not damaged.
- Ventilació: No bloquegeu les obertures de ventilació. Assegureu-vos que hi hagi un flux d'aire adequat al voltant de la unitat per evitar el sobreescalfament.
- Humitat: No exposeu la unitat a la pluja ni a la humitat. No col·loqueu objectes plens de líquids, com ara gerros, a sobre de la unitat.
- Objectes estrangers: No introduïu objectes metàl·lics ni materials inflamables a les obertures de ventilació.
- Manteniment: No intenteu atendre aquest producte vosaltres mateixos. Consulteu tots els serveis a personal de servei qualificat.
- Posada a terra: Assegureu-vos de posar a terra adequadament per evitar descàrregues elèctriques.
3. Producte acabatview
The TOA A-9120SM2 is a versatile unit combining a mixer, DSP, and amplifier. It features:
- Modular Mixer: Up to 8 mic/line inputs and 8 outputs.
- Dual Channel Digital Signal Processor (DSP): Includes 10-Band Parametric EQ, High and Low Pass Filters, Compressor, Loudness Contour, Bass and Treble Delay (MIXER mode), and 34 TOA Speaker EQ Presets.
- Single Channel Power Amplifier: Rated output of 120W.
- Telephone Zone Paging: Access up to eight zones with an optional ZP-001T module.
- Rack-mount Kit Included (2RU).
Figure 3.1: Front Panel of a Representative TOA Power Amplifier (Model BA-260 shown for illustration). This image displays the main controls including the master volume knob, signal, peak, and power indicators, as well as bass and treble adjustment sliders and the power switch.
Figure 3.2: Rear Panel of a Representative TOA Power Amplifier (Model BA-260 shown for illustration). This image illustrates the connectivity options, including terminals for MOH (Music On Hold) output, speaker outputs for different zones, line outputs, and various microphone/line inputs. It also shows the power input and a unit breaker reset button.
4. Configuració
Follow these steps for proper installation and setup of your A-9120SM2 unit.
- Desembalatge: Carefully remove the unit from its packaging. Verify all components are present, including the rack-mount kit.
- Muntatge en bastidor: The A-9120SM2 is designed for 2RU rack mounting. Securely install the unit into a standard equipment rack using the provided rack-mount kit. Ensure adequate ventilation space above and below the unit.
- Connexió d'alimentació: Connect the power cord to the unit's power inlet and then to a grounded 120VAC, 60Hz power outlet.
- Connexions d'entrada: Connect your audio sources (microphones, line-level devices) to the appropriate modular input slots. The unit supports up to 8 mic/line inputs. Refer to the specific module manuals for detailed connection instructions.
- Connexions de sortida: Connect your speakers or other audio destinations to the speaker output terminals (120W, 4Ω, unbalanced) or preamplifier outputs as required.
- Mòduls opcionals: If using optional modules like the ZP-001T for telephone zone paging, install them according to their respective instructions.
5. Instruccions de funcionament
The A-9120SM2 offers flexible operation modes for various applications.
- Encès/apagat: Use the power switch on the front panel to turn the unit on or off. The power indicator will illuminate when the unit is on.
- Controls del panell frontal:
- Volum mestre: Ajusta el nivell de sortida general.
- Signal/Peak Indicators: Monitor audio signal presence and clipping. Adjust input levels to prevent the peak indicator from consistently lighting up.
- Controls de greus/aguts: Fine-tune the low and high frequency response of the audio output.
- DSP Configuration: The unit features a Dual Channel DSP. Configuration can be done via the front panel or, for advanced settings, using the convenient GUI programming interface (Windows). This interface allows for fast configuration and upload/download of all settings, including:
- EQ paramètric de 10 bandes
- High and Low Pass Filters
- Compressor
- Loudness Contour
- Bass and Treble Delay (MIXER mode)
- 34 TOA Speaker EQ Presets
- Integrated Operating Modes: The A-9120SM2 supports powerful functionalities for both simple mixing and complex multi-zone paging applications. This includes:
- Telephone Zone Paging
- Automatic Microphone Mixing
- Control de soroll ambiental
6. Manteniment
Proper maintenance ensures the longevity and optimal performance of your A-9120SM2.
- Neteja: Feu servir un drap suau i sec per netejar l'exterior de la unitat. No utilitzeu netejadors líquids ni aerosols, ja que poden danyar l'acabat o els components interns.
- Ventilació: Comproveu regularment que les obertures de ventilació estiguin netes de pols i deixalles. Utilitzeu un raspall suau o aire comprimit per netejar-les suaument.
- Connexions: Comproveu periòdicament totes les connexions dels cables per assegurar-vos que estiguin ben fixades i que no presentin corrosió.
- Emmagatzematge: Si guardeu la unitat durant un període prolongat, desconnecteu-la de l'alimentació i guardeu-la en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
7. Solució De Problemes
This section addresses common issues you might encounter. If the problem persists, contact qualified service personnel.
| Problema | Causa possible | Solució |
|---|---|---|
| Sense poder | Power cord disconnected; Power outlet faulty; Unit breaker tripped. | Check power cord connection; Test power outlet; Reset unit breaker (if applicable). |
| Sense sortida de so | Master volume too low; Input source not connected or faulty; Speaker connections loose; DSP settings incorrect. | Increase master volume; Verify input source and connections; Check speaker wiring; Review DSP settings via GUI. |
| So distorsionat | Input level too high (clipping); Speaker impedance mismatch; Faulty cables. | Reduce input level (monitor peak indicator); Ensure speaker impedance matches unit specifications; Replace faulty cables. |
| Sobreescalfament de la unitat | Blocked ventilation; Insufficient airflow in rack. | Clear all ventilation openings; Ensure proper rack ventilation. |
8. Especificacions
Detailed technical specifications for the TOA A-9120SM2.
- Font d'alimentació: 120VAC, 60Hz
- Consum d'energia: 150W
- Sortida nominal: 120W
- Entrada d'àudio: Màx. 8 canals, construcció modular (mòduls opcionals)
- Poder Ampentrada de lifier: 0dB, 10kΩ, RCA pin jack
- Sortida d'àudio:
- Preamplifier output 1: 0dB, 300Ω, unbalanced, RCA pin jack
- Preamplifier output 2: 0dB, 600Ω, balanced, removable terminal block (3-pin)
- Speaker output: Removable terminal block (7 pins), (Direct) 120W, 4Ω, unbalanced
- Digital Audio Signal Reference Level: -20 dBFS
- Acabat: Panel: Aluminum, hair-line, black. Case: Surface-treated steel plate, black, paint
- Dimensions (L × A × P): 420 mm × 107.6 mm × 355 mm (16.54" × 4.24" × 13.98")
- Pes: 28.66 lliures (13 kg)
- Nombre de canals: 8
- Tipus de muntatge: Rackmount (2RU)
9. Informació de la garantia
TOA products are manufactured to the highest quality standards. For specific warranty terms and conditions applicable to your A-9120SM2, please refer to the warranty card included with your purchase or visit the official TOA weblloc web. Conserveu el comprovant de compra per a reclamacions de garantia.
10. Suport i contacte
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact TOA customer support or your authorized TOA dealer. You can find contact information on the official TOA weblloc:
When contacting support, please have your product model number (A 9120SM2) and serial number ready.
