1. はじめに
This manual provides detailed instructions for the proper installation, operation, and maintenance of your DS18 PRO-GM8B 8-inch midrange loudspeaker. The PRO-GM8B is designed to deliver clear and powerful midrange audio, enhancing your car or truck stereo sound system. Please read this manual thoroughly before installation and use to ensure optimal performance and longevity of your product.
2. 箱の中身
- 1 x DS18 PRO-GM8B 8-Inch Midrange Loudspeaker
- 取扱説明書 x 1
3. 主な特徴
- ミッドレンジパフォーマンス: Engineered to reproduce the critical mid-frequency range with clarity, suitable for both instrumental and vocal reproduction.
- ハイパワーハンドリング: Delivers an impressive 580W Max Power with 190W RMS at 8 Ohms, providing robust audio output.
- 耐久性のあるボイスコイル: Features a 1.5-inch high-temperature Kapton voice coil, designed for extreme heat resistance and structural integrity, ensuring extended product life.
- 強化されたサウンド: Designed to upgrade and improve upon stock stereo systems, offering a true midrange audio experience.
- Bullet Dust Cover: Includes a specifically designed red aluminum bullet dust cover that protects the voice coil and contributes to optimal sound dispersion.
4. 技術仕様
| 特徴 | 仕様 |
|---|---|
| モデル名 | プロGM8B |
| スピーカータイプ | ミッドレンジスピーカー |
| スピーカーサイズ | 8インチ |
| RMSパワー | 190W |
| マックスパワー | 580W |
| インピーダンス | 8オーム |
| 周波数応答 | 125-12KHz |
| 感度 | 95デシベル |
| ボイスコイルサイズ | 1.5インチ |
| マグネットサイズ | 30オンス |
| 取り付け深さ | 3.38インチ(86mm) |
| カットアウト寸法 | 7.16インチ(182mm) |
| 材料 | Paper, Fabric, Steel |
| 製品寸法 | 奥行き8.23インチ x 幅8.23インチ x 高さ3.39インチ |
| アイテム重量 | 4.73ポンド |
5. セットアップとインストール
Proper installation is crucial for the performance and longevity of your loudspeaker. If you are unsure about any steps, it is recommended to seek professional assistance.
5.1 取り付け
- 場所を選択してください: Select a suitable mounting location in your vehicle, typically car doors or custom enclosures, ensuring sufficient space for the speaker's dimensions (Mounting Depth: 3.38 inches, Cut-out Dimension: 7.16 inches).
- オープニングの準備: Carefully cut an opening of 7.16 inches (182mm) diameter. Ensure the mounting surface is stable and free from obstructions.
- セキュアスピーカー: Place the speaker into the prepared opening. Use appropriate screws to secure the speaker firmly to the mounting surface. Avoid over-tightening.
5.2配線
The PRO-GM8B loudspeaker has an impedance of 8 Ohms. Ensure your amplifier is compatible with this impedance and can provide the recommended RMS power of 190W. Connect the speaker wires to the appropriate terminals on the speaker and your amplifier, observing correct polarity (positive to positive, negative to negative) to prevent phase issues.
For optimal sound quality and to prevent damage, it is recommended to use a crossover to filter frequencies below 125Hz, as this speaker is designed for midrange reproduction.

図1: 前面 view of the DS18 PRO-GM8B 8-inch Midrange Loudspeaker with its distinctive red aluminum bullet.

図2:側面 view of the DS18 PRO-GM8B, highlighting the terminals for wiring connections and the ferrite magnet structure.

図3:背面 view of the DS18 PRO-GM8B, showing the black stamp steel basket, ferrite magnet, and the product specification label.
6. Operating Your Loudspeaker
Once properly installed and wired, your DS18 PRO-GM8B loudspeaker is ready for operation. Begin with your audio system's volume at a low setting and gradually increase it to your desired listening level. Pay attention to any signs of distortion or strain from the speakers, which may indicate excessive power or improper settings.
For optimal sound, consider fine-tuning your audio system's equalizer and crossover settings to complement the speaker's frequency response (125-12KHz).
7. メンテナンス
To ensure the longevity and performance of your DS18 PRO-GM8B loudspeaker, follow these simple maintenance guidelines:
- クリーニング: 柔らかく乾いた布でスピーカーのコーンとフレームを優しく拭いてください。刺激の強い化学薬品や研磨剤の使用は避けてください。
- 検査: Periodically check wiring connections for tightness and ensure no wires are frayed or exposed.
- 過剰な力を避ける: Do not exceed the recommended RMS power of 190W to prevent damage to the voice coil.
8。 トラブルシューティング
If you experience issues with your loudspeaker, refer to the following common troubleshooting steps:
- 音が出ない: Check all wiring connections to ensure they are secure and correctly polarized. Verify the ampライターの電源がオンになっていて機能しています。
- 歪んだ音: 音量を下げてください。 amplifier gain settings and ensure they are not set too high. Verify crossover settings are appropriate for midrange speakers.
- 断続的な音: Inspect wiring for loose connections or damage. Ensure the speaker terminals are clean and free from corrosion.
If problems persist after attempting these steps, contact DS18 customer support or a qualified audio technician.
9. 製品ビデオ
9.1 DS18 PRO-GM8B Loudspeaker Overview
このビデオでは、view of the DS18 PRO-GM8B 8-inch midrange loudspeaker, showcasinデザインと主な機能について説明します。
9.2 DS18 PRO-GM8 Loudspeaker Overview
This video presents an overview of the DS18 PRO-GM8 loudspeaker, a model very similar to the PRO-GM8B, offering insights into the PRO-GM series' characteristics.
10. 保証とサポート
The DS18 PRO-GM8B loudspeaker comes with a Limited Warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official DS18 webサイト。
For technical support, troubleshooting assistance, or any inquiries regarding your product, please contact DS18 customer service. You can also visit the official DS18 store for more information and product resources: DS18ストア.





