1. はじめに
The DS18 PRO-DR2 is a high-performance 2-inch titanium screw-on compression driver designed for professional audio applications. This manual provides essential information for the proper installation, operation, and maintenance of your PRO-DR2 driver to ensure optimal performance and longevity.

Image 1.1: The DS18 PRO-DR2 compression driver, highlighting its 2-inch titanium voice coil, 8 Ohm impedance, 400W RMS / 800W MAX power, 980Hz-20KHz frequency response, and 110dB sensitivity.
主な特徴:
- 2-inch Titanium Voice Coil: Ensures high-frequency reproduction with clarity and precision.
- ハイパワーハンドリング: Rated at 400W RMS and 800W MAX power for robust performance.
- 8オームインピーダンス: Compatible with a wide range of audio systems.
- 38 oz Ferrite Magnet: Provides strong magnetic flux for efficient sound production.
- Screw-On Design: Facilitates secure and straightforward mounting.
2. セットアップとインストール
2.1 安全上の注意
- Always disconnect power from your audio system before installation.
- 目の保護具を含む適切な安全装備を着用してください。
- 過熱を防ぐために、運転者の周囲に適切な換気を確保してください。
- 手順が不明な場合は、専門の設置業者にご相談ください。
2.2 ドライバーの取り付け
The PRO-DR2 features a screw-on throat for secure attachment to compatible horn flares or waveguides. Ensure the mounting surface is stable and free from obstructions.
- Align the driver's screw-on throat with the corresponding threads on your horn or waveguide.
- Carefully twist the driver clockwise until it is hand-tight. Do not overtighten, as this can damage the driver or horn.
- Ensure the driver is seated flush and securely.

画像2.1: 側面 view of the DS18 PRO-DR2, illustrating the screw-on throat for mounting.
2.3配線接続
ドライバーを amplifier or crossover network. Pay close attention to polarity to ensure correct phase alignment with other speakers in your system.
- Identify the positive (+) and negative (-) terminals on the PRO-DR2 driver.
- プラス出力を amplifier or crossover to the positive terminal of the driver.
- Connect the negative output from your amplifier or crossover to the negative terminal of the driver.
- すべての接続が安全であり、短絡がないことを確認してください。

画像2.2: 下部 view of the DS18 PRO-DR2, showing the input terminals for wiring connections.
2.4 クロスオーバー設定
A passive or active crossover is essential to protect the compression driver from low frequencies that can cause damage. Refer to your system's amplifier or crossover manual for specific settings.
- Set the high-pass filter (HPF) for the driver channel to at least 1.5 kHz (1500 Hz) with a slope of 12dB/octave or higher.
- Adjust the crossover point based on your specific system and listening preferences, ensuring the driver is not subjected to frequencies below its recommended range.
3. 操作手順
3.1 初期電源投入
After installation, perform a low-volume test to confirm proper functionality.
- Turn on your audio system with the volume set to minimum.
- Gradually increase the volume to a low listening level.
- Listen for clear, undistorted sound from the PRO-DR2 driver.
3.2 Gain and Level Adjustment
適切なゲインtaging is crucial to prevent distortion and maximize sound quality.
- 設定する amplifier gain for the driver channel according to the amplifier's instructions, typically by playing a test tone and adjusting until the clipping indicator just begins to flash, then backing off slightly.
- Avoid setting the gain too high, as this can lead to clipping and damage to the driver.
3.3 Avoiding Distortion
Distortion is a primary cause of driver failure. Always operate your system within its clean power limits.
- If you hear any harsh, crackling, or fuzzy sounds, immediately reduce the volume.
- あなたの ampライファイアはクリッピングされません。
- Verify that your crossover settings are correct and protecting the driver from low frequencies.
4. メンテナンス
The DS18 PRO-DR2 driver requires minimal maintenance to ensure long-term performance.
4.1 クリーニング
- Periodically wipe the exterior of the driver with a soft, dry cloth to remove dust and debris.
- 仕上げや内部コンポーネントを損傷する恐れがあるため、刺激の強い化学薬品、溶剤、研磨剤入りの洗剤は使用しないでください。
- Avoid getting moisture into the driver's voice coil or terminals.
4.2 検査
- すべての配線接続が安全で腐食がないことを定期的に確認してください。
- Inspect the mounting points for any signs of loosening or damage.
- Listen for any unusual noises during operation that might indicate a problem.
4.3 ストレージ
If storing the driver for an extended period, keep it in a cool, dry place, away from direct sunlight and extreme temperatures. Use original packaging if available to protect it from physical damage.
5。 トラブルシューティング
If you experience issues with your PRO-DR2 driver, refer to the following troubleshooting guide:
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| ドライバーから音が出ない |
|
|
| 歪んだ音や耳障りな音 |
|
|
| 低出力 |
|
|
6. 仕様
Detailed technical specifications for the DS18 PRO-DR2 compression driver:
| 特徴 | 仕様 |
|---|---|
| モデル番号 | PRO-DR2 |
| 公称インピーダンス | 8オーム |
| RMS電力処理 | 400ワット |
| MAXパワーハンドリング | 800ワット |
| 感度(1W / 1m) | 110デシベル |
| 周波数応答 | 980 Hz - 20 kHz |
| ボイスコイルサイズ | 2インチ |
| ダイヤフラム素材 | チタン |
| マグネット重量 | 38 oz (Ferrite) |
| ボルトタイプ | ねじ止め |
| 全体の深さ | 3.07インチ(78 mm) |
| 接続技術 | 有線 |
| エンクロージャ材質 | チタン |
| アイテム重量 | 38オンス |
7. 保証情報
The DS18 PRO-DR2 compression driver comes with a limited manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for any warranty claims.
For specific details regarding warranty duration and terms, please refer to the warranty card included with your product or visit the official DS18 webサイト。
8. サポート
If you require further assistance or have questions not covered in this manual, please contact DS18 customer support.
- Webサイト: www.ds18.com
- メールアドレス: DS18を参照してください web連絡先メールアドレスのサイト。
- 電話: DS18を参照してください web連絡先電話番号のサイト。
When contacting support, please have your product model (PRO-DR2) and purchase information readily available.