1. علىview
The QSC RMX2450 Stereo Power Amplifier is designed to provide reliable and high-quality audio amplification for professional sound systems. This amplifier features a robust power supply with a high-current toroidal transformer and ample filter capacitance, ensuring consistent performance even with demanding 2-ohm speaker loads. It incorporates a full complementary output circuit with linear output devices for ultra-low distortion and a flat frequency response. The RMX2450 is equipped with professional features such as independent defeatable clip limiters, selectable low-frequency filters, and versatile input/output connectivity options including barrier strip, XLR, 1/4-inch balanced inputs, and Speakon and binding post outputs. Efficient cooling is maintained by low-noise variable speed fans with rear-to-front airflow.
2. معلومات السلامة
Before operating the QSC RMX2450 amplifier, please read and understand all safety instructions. Retain this manual for future reference.
- خطر الصدمة الكهربائية: لا تفتح amplifier chassis. Refer all servicing to qualified personnel.
- مصدر الطاقة: Connect the unit only to a power supply of the type specified in this manual and on the unit.
- تهوية: Ensure proper ventilation. Do not block ventilation openings. Maintain adequate clearance around the amplifier for airflow.
- رُطُوبَة: لا تعرض الجهاز للمطر أو الرطوبة. لا تضع أشياء مملوءة بالسوائل على الجهاز.
- التأريض: Always connect the power cord to a mains socket outlet with a protective earthing connection.
- تنظيف: افصل سلك الطاقة قبل التنظيف. استخدم قطعة قماش جافة فقط.
3. الإعداد
3.1. التفريغ والتفتيش
قم بإزالة ampأخرج الجهاز من عبوته. افحص الجهاز بحثًا عن أي علامات تلف قد تكون حدثت أثناء النقل. في حال وجود أي تلف، اتصل بالموزع فورًا.
3.2. Rack Mounting and Placement
The RMX2450 is designed for standard 19-inch equipment rack mounting. Secure the amplifier using all four mounting points to ensure stability. Ensure that the rack provides adequate ventilation, allowing for rear-to-front airflow. Avoid placing the amplifier near heat sources or in enclosed spaces without proper air circulation.
3.3. عناصر التحكم والمؤشرات في اللوحة الأمامية
This image displays the front panel of the QSC RMX2450 amplifier. Visible features include the main power switch, individual gain controls for Channel 1 and Channel 2, and LED indicators for signal presence and clipping.
- مفتاح التشغيل: يبدل ampتشغيل أو إيقاف تشغيل الطاقة الرئيسية للمضخم.
- مؤشر الطاقة LED: يضيء باللون الأخضر عندما ampتم تشغيل المحرك.
- Gain Controls (Channel 1 & 2): Rotary controls to adjust the input sensitivity for each channel.
- Signal LEDs (Channel 1 & 2): Green LEDs indicate the presence of an audio signal.
- Clip LEDs (Channel 1 & 2): Red LEDs illuminate when the output signal is clipping, indicating potential distortion.
3.4. Rear Panel Connections and Switches
This image shows the rear panel of the QSC RMX2450 amplifier. It highlights the XLR and 1/4-inch input connectors, Speakon and binding post output connectors, a circuit breaker, and various mode switches for configuration, including clip limiting, low-frequency filters, and bridge mono operation.
- Input Connectors (Channel 1 & 2): Balanced XLR and 1/4-inch TRS connectors for audio input. Barrier strip inputs are also available.
- Output Connectors (Channel 1 & 2): Speakon and binding post connectors for connecting loudspeakers.
- مفاتيح الوضع: DIP switches for configuring various ampوظائف مكبر الصوت:
- Clip Limiter: Engages or disengages the clip limiting function for each channel.
- Low-Frequency Filters: Selectable filters (e.g., 30 Hz, 50 Hz) to protect speakers and optimize low-end response.
- Stereo/Parallel/Bridge Mono: قم بتكوين ملف amplifier's operating mode.
- قاطع دائرة: Provides overload protection for the ampمكبر.
- مدخل طاقة التيار المتردد: Standard IEC connector for the detachable power cord.
4. التشغيل
4.1. التشغيل وإيقاف التشغيل
- Ensure all connections are secure and gain controls are set to minimum.
- Flip the front panel power switch to the 'ON' position. The Power LED will illuminate green.
- To power off, turn down all gain controls, then flip the power switch to 'OFF'.
4.2. توصيلات الإدخال والإخراج
قم بتوصيل مصدر الصوت (الخلاط، المسبق)amplifier) to the input connectors (XLR, 1/4-inch, or barrier strip) on the rear panel. Connect your loudspeakers to the output connectors (Speakon or binding posts). Ensure correct polarity for all connections.
4.3. Setting Gain Levels
With the audio source playing at a normal operating level, slowly increase the amplifier's gain controls until the desired volume is achieved. Monitor the Signal and Clip LEDs. The Signal LED should flicker with audio presence, and the Clip LED should only flash momentarily on signal peaks. If the Clip LED stays illuminated, reduce the gain to prevent distortion and potential speaker damage.
4.4. Using Clip Limiters
The RMX2450 features independent defeatable clip limiters. When engaged via the rear panel DIP switches, these limiters reduce peak distortion without sacrificing dynamic range. It is generally recommended to keep clip limiters engaged to protect speakers from excessive clipping.
4.5. Configuring Low-Frequency Filters
The rear panel DIP switches allow selection of low-frequency filters (e.g., 30 Hz, 50 Hz). These filters help protect speakers from damaging sub-sonic frequencies and improve low-end tightness. Select the appropriate filter setting based on your loudspeaker's frequency response capabilities.
4.6. وضع جسر أحادي
For maximum power output into a single load, the RMX2450 can operate in Bridge Mono mode. Refer to the rear panel diagram and DIP switch settings for proper configuration. In this mode, only Channel 1 input is used, and the output is taken from specific binding posts or Speakon pins as indicated on the amplifier. Ensure the connected speaker impedance is suitable for bridge mono operation (typically 8 ohms).
5. الصيانة
5.1. التنظيف
نظف الجزء الخارجي من amplifier with a soft, dry cloth. Do not use liquid cleaners or solvents. Ensure ventilation grilles are free from dust and debris to maintain proper airflow.
5.2. التهوية
تأكد بانتظام من أن amplifier's ventilation openings are not obstructed. Proper airflow is crucial for preventing overheating and ensuring long-term reliability. If the amplifier is rack-mounted, ensure adequate space is provided around the unit.
6. استكشاف الأخطاء وإصلاحها
If you experience issues with your QSC RMX2450 amplifier, consult the following table for common problems and solutions.
| مشكلة | السبب المحتمل | حل |
|---|---|---|
| لا يوجد طاقة / مصباح الطاقة مطفأ | Power cord disconnected, circuit breaker tripped, faulty power outlet. | Check power cord connection. Reset rear panel circuit breaker. Test power outlet with another device. |
| لا يوجد مخرج صوت | Input signal missing, gain controls at minimum, speaker cables disconnected, incorrect mode setting. | Verify input signal source. Increase gain controls. Check speaker cable connections. Ensure correct Stereo/Parallel/Bridge Mono mode. |
| Distorted sound / Clip LED constantly on | إشارة الإدخال عالية جدًا، amplifier gain too high, speaker impedance too low. | Reduce input signal level from source. Decrease amplifier gain. Ensure speaker impedance matches ampقدرات لايفير. |
| ارتفاع درجة الحرارة | Blocked ventilation, inadequate airflow. | Ensure all ventilation openings are clear. Provide adequate space around the amplifier for airflow. |
If the problem persists after attempting these solutions, please contact QSC Customer Support.
7. المواصفات
The following are key technical specifications for the QSC RMX2450 Stereo Power Ampمكبر:
- طاقة الإخراج:
- 500 واط لكل قناة عند 8 أوم (ستيريو)
- 750 واط لكل قناة عند 4 أوم (ستيريو)
- 1200 واط لكل قناة عند 2 أوم (ستيريو)
- 1500 watts @ 8 ohms (bridge mono)
- عدد القنوات: 2
- المجلدtage: 120 فولت
- وزن السلعة: 44.5 رطل
- أبعاد المنتج (الطول × العرض × الارتفاع): 24 × 22 × 7 بوصة
- نوع التركيب: التركيب السطحي (قابل للتركيب على الرف)
- درجة حرارة التشغيل: 50 Degrees Fahrenheit (recommended ambient)
- التقى المواصفات: لجنة الاتصالات الفيدرالية
- الشركة المصنعة: ش.م.ق
- رقم الموديل: QSC RMX2450
- ASIN: B0002BSRM0
- رمز المنتج العالمي: 684284003720
8. الضمان والدعم
8.1. معلومات الضمان
QSC products are designed and manufactured to the highest quality standards. This product is covered by a limited warranty against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official QSC webموقع.
8.2. دعم العملاء
For technical assistance, service, or further information regarding your QSC RMX2450 Stereo Power Amplifier, please contact QSC Customer Support:
- Webموقع: www.qsc.com
- هاتف: Refer to the QSC webموقع لأرقام الاتصال الإقليمية.
- بريد إلكتروني: Refer to the QSC webموقع مخصص لعناوين البريد الإلكتروني للدعم.
