1.製品オーバーview
The JBL Professional LSR310S is a powered 10-inch studio monitor subwoofer designed to extend the low-frequency performance of any studio monitor system. It delivers deep, dynamic bass response and is an ideal companion for JBL 3 Series studio monitors. Its robust design ensures faithful audio reproduction for critical listening environments.

図1: 前面 view of the JBL Professional LSR310S Subwoofer. This image displays the sleek black finish and the front-firing port design.
2. 箱の中身
- JBL Professional LSR310S Studio Monitor Subwoofer
- 電源ケーブル
- セットアップガイド

Figure 2: Included accessories: Quick Setup Guide and Power Cable.
3. セットアップ手順
Proper setup is crucial for optimal performance of your LSR310S subwoofer. Follow these steps for connection and initial configuration.
3.1 配置
Position the subwoofer on the floor, ideally between your main studio monitors. Experiment with placement to find the optimal bass response for your listening environment. The patented JBL front-firing Slip Stream™ port design allows for flexible placement without compromising low-frequency extension.

図3:側面 view of the JBL Professional LSR310S Subwoofer, showing its compact design suitable for various placements.
3.2オーディオ接続
The LSR310S features professional balanced XLR and 1/4" TRS inputs and XLR outputs, allowing seamless integration into any studio monitor system or for use as an LFE channel in a surround sound setup.
- オーディオソース(例:オーディオインターフェース、ミキサー)を 入力 on the subwoofer using balanced XLR or 1/4" TRS cables.
- 接続する 出力 of the subwoofer to your main studio monitors. The subwoofer will pass the processed signal to your monitors.
- すべての接続が安全であることを確認します。

Figure 4: Rear panel of the LSR310S, detailing the input/output connections and control knobs.
3.3電源接続
- 付属の電源ケーブルをサブウーファーの背面パネルの AC 入力に接続します。
- Plug the other end of the power cable into a grounded AC outlet.
- 電源に接続する前に、電源スイッチがオフになっていることを確認してください。
4. 操作手順
Familiarize yourself with the controls on the rear panel to optimize your listening experience.
4.1 初期電源投入
- After all connections are made, switch the power button to the ON position. The power indicator will illuminate.
- Slowly increase the volume of your audio source and the subwoofer to a comfortable listening level.
4.2コントロールオーバーview
- 音量コントロール: サブウーファーの全体的な出力レベルを調整します。
- クロスオーバー周波数: Select the crossover point (e.g., 80 Hz, 100 Hz, 120 Hz) to seamlessly integrate the subwoofer with your main monitors.
- 極性スイッチ: Adjusts the phase of the subwoofer (0° or 180°) to ensure optimal acoustic alignment with your main monitors.
- -10dBV/+4dBu Sensitivity Switch: Ensures compatibility with a broad range of signal sources, preventing input overload from high-output professional equipment.
- XLF Setting: Activates an extended low-frequency tuning that emulates the bass response found in dance clubs, providing an inspiring sound for dance music production.
5. 特徴
- Patented Slip Stream™ Port: This unique port design works in concert with the 10-inch low-frequency driver for deep, dynamic bass response at all playback levels. Its double-flared shape optimizes low-frequency extension.
- XLF Extended Low Frequency Setting: A JBL innovation, this setting emulates the ample bass tuning used in today's dance clubs, inspiring producers working on dance tracks.
- Custom-Designed 10-inch Driver: Engineered for deep low-frequency response down to 20 Hz and 113 dB peak output, ensuring long-term reliability even at full rated power.
- Professional Balanced Inputs and Outputs: Features balanced XLR and 1/4" inputs and XLR outputs for versatile connectivity with any studio monitor system or surround sound setup.
- Selectable Input Sensitivity: The -10dBV/+4dBu sensitivity switch ensures compatibility with various signal sources, preventing input overload from high-output professional equipment.
6. 仕様
| 仕様 | 価値 |
|---|---|
| モデル名 | LSR310S |
| スピーカータイプ | サブウーファー |
| ウーファー直径 | 10インチ(25.4センチメートル) |
| スピーカー最大出力 | 200ワット |
| 周波数応答 | 27Hz |
| 信号対ノイズ比 | 113デシベル |
| 接続技術 | Wired (2 x XLR, 2 x TRS Balanced) |
| オーディオ出力モード | ステレオ、サラウンド |
| 製品寸法 | 奥行き15.7インチ x 幅15インチ x 高さ17.7インチ |
| アイテム重量 | 34.3 ポンド (15.6 キログラム) |
| 材料 | ポリ塩化ビニル(PVC) |
| 色 | 黒 |
| 入力ボリュームtage | 110ボルト |

Figure 5: Dimensions of the JBL Professional LSR310S Subwoofer.
7。 トラブルシューティング
If you encounter issues with your LSR310S subwoofer, refer to the following common troubleshooting steps:
- 音が出ない: Ensure the subwoofer is powered on, the volume is turned up, and all audio cables are securely connected. Check the audio source for output.
- 歪んだ音: Verify that the input sensitivity switch is correctly set for your equipment. Reduce the volume of the subwoofer and/or the audio source. Check for damaged cables.
- ハム音またはバズ音: Ensure all equipment is properly grounded. Try using the Ground Lift switch if available on your audio interface or mixer. Check for loose connections.
- 弱い低音: Adjust the volume and crossover frequency settings. Experiment with subwoofer placement in your room. Ensure the polarity switch is correctly set for optimal phase alignment with your main monitors.
8. メンテナンス
To ensure the longevity and optimal performance of your JBL Professional LSR310S subwoofer, follow these maintenance guidelines:
- クリーニング: Use a soft, dry cloth to clean the exterior of the subwoofer. Avoid using abrasive cleaners, solvents, or waxes, as these can damage the finish.
- 換気: Ensure adequate airflow around the subwoofer. Do not block the rear panel or any vents.
- 環境: サブウーファーは、極端な温度、湿度、直射日光を避け、安定した環境で操作してください。
- ケーブル管理 Keep audio and power cables organized and free from kinks or excessive tension to prevent damage.
9. 公式製品ビデオ
公式製品ビデオをご覧くださいview of JBL Studio Monitors, including the 3 Series, which the LSR310S is a part of.
ビデオ1: 終了view of JBL LSR305 5" 2-Way Powered Studio Monitor. This video provides insights into the JBL 3 Series studio monitors, which the LSR310S subwoofer is designed to complement.
10.保証とサポート
10.1 保証情報
The JBL Professional LSR310S Subwoofer comes with a Limited Warranty. Please refer to the detailed warranty card included in your product packaging or visit the JBL Professional website for specific terms and conditions regarding coverage duration and service.
10.2 カスタマーサポート
For technical assistance, troubleshooting, or service inquiries, please contact JBL Professional customer support. Contact details can be found in your product documentation or on the official JBL Professional webサイト。