1。 オーバーview
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. 安全情報
Before operating the QSC RMX2450 amplifier, please read and understand all safety instructions. Retain this manual for future reference.
- 感電の危険: 開けないでください ampライフファイアシャーシ。すべての修理は資格のある担当者にお任せください。
- 電源: Connect the unit only to a power supply of the type specified in this manual and on the unit.
- 換気： Ensure proper ventilation. Do not block ventilation openings. Maintain adequate clearance around the amp空気の流れを良くする装置。
- 水分： 本製品を雨や湿気にさらさないでください。また、液体の入った物を本製品の上に置かないでください。
- 接地: Always connect the power cord to a mains socket outlet with a protective earthing connection.
- クリーニング： 清掃する前に電源コードを抜いてください。乾いた布のみを使用してください。
3. セットアップ
3.1。 開梱と検査
慎重に取り外します amp梱包から取り出してください。輸送中に生じた損傷がないか確認してください。損傷が見つかった場合は、直ちに販売店にご連絡ください。
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. フロントパネルのコントロールとインジケータ
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.
- 電源スイッチ： を切り替えます amplifier's main power on or off.
- 電源LED: 緑色に点灯します。 amplifierの電源がオンになっています。
- ゲインコントロール（チャンネル1と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.
- モードスイッチ: DIP switches for configuring various ampライファイア機能:
- Clip Limiter: Engages or disengages the clip limiting function for each channel.
- 低周波フィルター: Selectable filters (e.g., 30 Hz, 50 Hz) to protect speakers and optimize low-end response.
- Stereo/Parallel/Bridge Mono: を設定します amplifier's operating mode.
- 遮断器： Provides overload protection for the amplifier。
- AC 電源インレット: Standard IEC connector for the detachable power cord.
4. 操作
4.1. 電源のオンとオフ
- 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. 入力と出力の接続
オーディオソース（ミキサー、プリアンプ、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. ブリッジモノモード
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. メンテナンス
5.1. 清掃
定期的に外装を清掃してください 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. 換気
定期的にチェックしてください 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。 トラブルシューティング
If you experience issues with your QSC RMX2450 amplifier, consult the following table for common problems and solutions.
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| 電源なし / 電源LEDがオフ | Power cord disconnected, circuit breaker tripped, faulty power outlet. | Check power cord connection. Reset rear panel circuit breaker. Test power outlet with another device. |
| 音声出力なし | 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. |
| 音が歪む / クリップ LED が点灯し続ける | 入力信号が高すぎます。 amplifier gain too high, speaker impedance too low. | Reduce input signal level from source. Decrease amplifier gain. Ensure speaker impedance matches ampライフファイアーの機能。 |
| 過熱 | Blocked ventilation, inadequate airflow. | Ensure all ventilation openings are clear. Provide adequate space around the amp空気の流れを良くする装置。 |
If the problem persists after attempting these solutions, please contact QSC Customer Support.
7. 仕様
The following are key technical specifications for the QSC RMX2450 Stereo Power Amplifier：
- 出力:
- チャンネルあたり500ワット@8オーム（ステレオ）
- チャンネルあたり750ワット@4オーム（ステレオ）
- チャンネルあたり1200ワット@2オーム（ステレオ）
- 1500 watts @ 8 ohms (bridge mono)
- チャンネル数: 2
- 巻tage: 120ボルト
- 商品の重量: 44.5ポンド
- 製品寸法（長さ x 幅 x 高さ）： 24 x 22 x 7インチ
- 取り付けタイプ: 表面実装（ラックマウント可能）
- 動作温度: 50 Degrees Fahrenheit (recommended ambient)
- 仕様を満たす： 連邦通信委員会
- メーカー: QSC
- モデル番号: QSC RMX2450
- ASIN: B0002BSRM0
- 国際コード: 684284003720
8.保証とサポート
8.1. 保証情報
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 webサイト。
8.2. カスタマーサポート
For technical assistance, service, or further information regarding your QSC RMX2450 Stereo Power Amplifier, please contact QSC Customer Support:
- Webサイト： www.qsc.com
- 電話： Refer to the QSC web地域の連絡先番号のサイト。
- メールアドレス: Refer to the QSC webサポート メール アドレスのサイト。