1. ഓവർview
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 സുരക്ഷാ വിവരങ്ങൾ
Before operating the QSC RMX2450 amplifier, please read and understand all safety instructions. Retain this manual for future reference.
- വൈദ്യുത ഷോക്ക് അപകടം: തുറക്കരുത് amplifier chassis. Refer all servicing to qualified personnel.
- ഊർജ്ജ സ്രോതസ്സ്: Connect the unit only to a power supply of the type specified in this manual and on the unit.
- വെൻ്റിലേഷൻ: Ensure proper ventilation. Do not block ventilation openings. Maintain adequate clearance around the ampവായുസഞ്ചാരത്തിനുള്ള ലിഫയർ.
- ഈർപ്പം: യൂണിറ്റ് മഴയിലോ ഈർപ്പത്തിലോ ഒതുങ്ങരുത്. ദ്രാവകങ്ങൾ നിറച്ച വസ്തുക്കൾ യൂണിറ്റിൽ വയ്ക്കരുത്.
- ഗ്രൗണ്ടിംഗ്: Always connect the power cord to a mains socket outlet with a protective earthing connection.
- വൃത്തിയാക്കൽ: Disconnect the power cord before cleaning. Use a dry cloth only.
3. സജ്ജീകരണം
3.1. അൺപാക്ക് ചെയ്യലും പരിശോധനയും
ശ്രദ്ധാപൂർവ്വം നീക്കം ചെയ്യുക amplifier from its packaging. Inspect the unit for any signs of damage that may have occurred during transit. If damage is found, contact your dealer immediately.
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. Front Panel Controls and Indicators
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.
- വൈദ്യുതി സ്വിച്ച്: ടോഗിൾ ചെയ്യുന്നു ampലൈഫയറിന്റെ പ്രധാന പവർ ഓൺ അല്ലെങ്കിൽ ഓഫ്.
- പവർ എൽഇഡി: Illuminates green when the ampലൈഫയർ ഓണാണ്.
- 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.
- മോഡ് സ്വിച്ചുകൾ: DIP switches for configuring various amplifier functions:
- 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: കോൺഫിഗർ ചെയ്യുന്നു ampലൈഫയറിന്റെ പ്രവർത്തന രീതി.
- സർക്യൂട്ട് ബ്രേക്കർ: Provides overload protection for the ampജീവൻ.
- എസി പവർ ഇൻലെറ്റ്: Standard IEC connector for the detachable power cord.
4. ഓപ്പറേഷൻ
4.1. പവർ ചെയ്യലും ഓഫും
- 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. ഇൻപുട്ട്, ഔട്ട്പുട്ട് കണക്ഷനുകൾ
നിങ്ങളുടെ ഓഡിയോ ഉറവിടം ബന്ധിപ്പിക്കുക (മിക്സർ, പ്രീamplifier) 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. Bridge Mono Mode
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. പരിപാലനം
5.1. വൃത്തിയാക്കൽ
ഇടയ്ക്കിടെ പുറംഭാഗം വൃത്തിയാക്കുക 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. വെൻ്റിലേഷൻ
പതിവായി പരിശോധിക്കുക 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. പ്രശ്നപരിഹാരം
If you experience issues with your QSC RMX2450 amplifier, consult the following table for common problems and solutions.
| പ്രശ്നം | സാധ്യമായ കാരണം | പരിഹാരം |
|---|---|---|
| പവർ ഇല്ല / പവർ LED ഓഫ് | Power cord disconnected, circuit breaker tripped, faulty power outlet. | Check power cord connection. Reset rear panel circuit breaker. Test power outlet with another device. |
| ശബ്ദ ഔട്ട്പുട്ട് ഇല്ല | 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. |
| വികലമായ ശബ്ദം / ക്ലിപ്പ് LED നിരന്തരം ഓണാണ് | Input signal too high, amplifier gain too high, speaker impedance too low. | Reduce input signal level from source. Decrease amplifier gain. Ensure speaker impedance matches ampലൈഫയറുടെ കഴിവുകൾ. |
| അമിത ചൂടാക്കൽ | Blocked ventilation, inadequate airflow. | Ensure all ventilation openings are clear. Provide adequate space around the ampവായുസഞ്ചാരത്തിനുള്ള ലിഫയർ. |
If the problem persists after attempting these solutions, please contact QSC Customer Support.
7 സ്പെസിഫിക്കേഷനുകൾ
The following are key technical specifications for the QSC RMX2450 Stereo Power Ampജീവപര്യന്തം:
- ഔട്ട്പുട്ട് പവർ:
- 8 ഓംസിൽ (സ്റ്റീരിയോ) ഒരു ചാനലിന് 500 വാട്ട്സ്
- 4 ഓംസിൽ (സ്റ്റീരിയോ) ഒരു ചാനലിന് 750 വാട്ട്സ്
- 2 ഓംസിൽ (സ്റ്റീരിയോ) ഒരു ചാനലിന് 1200 വാട്ട്സ്
- 1500 watts @ 8 ohms (bridge mono)
- ചാനലുകളുടെ എണ്ണം: 2
- വാല്യംtage: 120 വോൾട്ട്
- ഇനത്തിൻ്റെ ഭാരം: 44.5 പൗണ്ട്
- ഉൽപ്പന്ന അളവുകൾ (L x W x H): 24 x 22 x 7 ഇഞ്ച്
- മൗണ്ടിംഗ് തരം: Surface Mount (Rack Mountable)
- പ്രവർത്തന താപനില: 50 Degrees Fahrenheit (recommended ambient)
- സ്പെസിഫിക്കേഷൻ മെറ്റ്: FCC
- നിർമ്മാതാവ്: ക്യു.എസ്.സി
- മോഡൽ നമ്പർ: QSC RMX2450
- ASIN: B0002BSRM0
- UPC: 684284003720
8. വാറണ്ടിയും പിന്തുണയും
8.1. വാറൻ്റി വിവരങ്ങൾ
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 webസൈറ്റ്.
8.2. ഉപഭോക്തൃ പിന്തുണ
For technical assistance, service, or further information regarding your QSC RMX2450 Stereo Power Amplifier, please contact QSC Customer Support:
- Webസൈറ്റ്: www.qsc.com
- ഫോൺ: Refer to the QSC webപ്രാദേശിക കോൺടാക്റ്റ് നമ്പറുകൾക്കായുള്ള സൈറ്റ്.
- ഇമെയിൽ: Refer to the QSC webപിന്തുണ ഇമെയിൽ വിലാസങ്ങൾക്കായുള്ള സൈറ്റ്.
