1. پیژندنه
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. د خوندیتوب معلومات
Always observe the following safety precautions to prevent personal injury and property damage.
- د بریښنا سرچینه: Connect the unit only to the specified power supply (120VAC, 60Hz). Ensure the power cord is securely plugged in and not damaged.
- وینټیلیشن: د هوا د بهېدو لارې مه بندوئ. د یونټ شاوخوا کافي هوا جریان ډاډمن کړئ ترڅو د ډیر تودوخې مخه ونیول شي.
- رطوبت: واحد د باران یا رطوبت سره مه مخ کوئ. په واحد کې هغه شیان مه کېږدئ چې د مایعاتو څخه ډک وي، لکه ګلدانونه.
- بهرني شیان: Do not insert any metal objects or flammable materials into the ventilation openings.
- خدمت کول: د دې محصول پخپله خدمت کولو هڅه مه کوئ. ټول خدمتونه وړ خدماتي پرسونل ته راجع کړئ.
- ځمکني کول: د برقی شاک څخه د مخنیوي لپاره مناسب ځمکني کول ډاډمن کړئ.
3. محصول ختم شوview
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. ترتیب کول
Follow these steps for proper installation and setup of your A-9120SM2 unit.
- بسته بندي کول: Carefully remove the unit from its packaging. Verify all components are present, including the rack-mount kit.
- د ریک نصبول: 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.
- د بریښنا پیوستون: Connect the power cord to the unit's power inlet and then to a grounded 120VAC, 60Hz power outlet.
- د ننوتلو اړیکې: 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.
- وتۍ اړیکې: Connect your speakers or other audio destinations to the speaker output terminals (120W, 4Ω, unbalanced) or preamplifier outputs as required.
- اختیاري ماډلونه: If using optional modules like the ZP-001T for telephone zone paging, install them according to their respective instructions.
5. عملیاتي لارښوونې
The A-9120SM2 offers flexible operation modes for various applications.
- پاور آن/بند: 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.
- د مخکینۍ پینل کنټرولونه:
- د ماسټر حجم: د ټول محصول کچه کچه تنظیموي.
- Signal/Peak Indicators: Monitor audio signal presence and clipping. Adjust input levels to prevent the peak indicator from consistently lighting up.
- د باس/ټریبل کنټرولونه: 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:
- 10-Band Parametric EQ
- د لوړ او ټیټ پاس فلټرونه
- کمپرسور
- 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
- د محیطي غږ کنټرول
6. ساتنه
Proper maintenance ensures the longevity and optimal performance of your A-9120SM2.
- پاکول: د واحد بهرنۍ برخه پاکولو لپاره نرم، وچ ټوکر وکاروئ. د مایع پاکوونکو یا ایروسول سپرې څخه کار مه اخلئ، ځکه چې دوی ممکن پای یا داخلي برخو ته زیان ورسوي.
- وینټیلیشن: Regularly check that the ventilation openings are clear of dust and debris. Use a soft brush or compressed air to gently clean them.
- اړیکې: په دوره یي ډول د کیبل ټولې اړیکې وګورئ ترڅو ډاډ ترلاسه شي چې دوی خوندي او له زنګ څخه پاک دي.
- ذخیره کول: که چیرې یونټ د اوږدې مودې لپاره ذخیره کوئ، نو دا له بریښنا څخه جلا کړئ او په یخ او وچ ځای کې یې د مستقیم لمر وړانګو او سختې تودوخې څخه لرې وساتئ.
7. ستونزه حل کول
This section addresses common issues you might encounter. If the problem persists, contact qualified service personnel.
| ستونزه | احتمالي لامل | د حل لاره |
|---|---|---|
| هیڅ ځواک نشته | Power cord disconnected; Power outlet faulty; Unit breaker tripped. | Check power cord connection; Test power outlet; Reset unit breaker (if applicable). |
| د غږ محصول نشته | 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. |
| تحریف شوی غږ | 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. |
| د واحد ډیر ګرم کول | Blocked ventilation; Insufficient airflow in rack. | Clear all ventilation openings; Ensure proper rack ventilation. |
8. مشخصات
Detailed technical specifications for the TOA A-9120SM2.
- د بریښنا سرچینه: 120VAC ، 60Hz
- د بریښنا مصرف: 150W
- ټاکل شوی محصول: 120W
- آډیو داخلول: Max. 8 چینلونه، ماډلر جوړونه (ماډولونه اختیاري)
- ځواک Ampلایفیر داخله: 0dB, 10kΩ, RCA pin jack
- آډیو تولید:
- مخکېamplifier output 1: 0dB, 300Ω, unbalanced, RCA pin jack
- مخکېamplifier 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: -20dBFS
- پای: Panel: Aluminum, hair-line, black. Case: Surface-treated steel plate, black, paint
- ابعاد (W × H × D): ۲۳۸ ملي متره × ۹۲ ملي متره × ۵۰ ملي متره (۹.۳۷ انچه × ۳.۶ انچه × ۱.۹ انچه)
- وزن: ۶ پونډه (۳ کیلو ګرامه)
- د چینلونو شمیر: 8
- د نصب کولو ډول: Rackmount (2RU)
9. د تضمین معلومات
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 webسایټ. د تضمین ادعاوو لپاره د پیرود ثبوت وساتئ.
۱۰. ملاتړ او اړیکه
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 webسایټ:
When contacting support, please have your product model number (A 9120SM2) and serial number ready.





