Quantum Audio Xシリーズ QWX400012D4 サブウーファー ユーザーマニュアル

1. はじめにview

The Quantum Audio X Series QWX400012D4 is a high-performance 12-inch Dual Voice Coil (DVC) subwoofer designed to deliver powerful and accurate deep bass. Engineered with a focus on maximum excursion and durability, this subwoofer features a double-stitched high excursion foam surround, a die-cast aluminum vented basket, and a 2.5-inch high-temperature voice coil. Its robust construction and advanced design contribute to superior sound quality and long-term reliability.

Figure 1.1: Quantum Audio X Series QWX400012D4 Subwoofer (Angled View)

2. 安全情報

サブウーファーの取り付けおよび操作前に、すべての安全に関する注意事項をよくお読みください。これらのガイドラインに従わない場合、怪我をしたり、製品または車両に損傷を与える可能性があります。

• 電力処理: This subwoofer is rated for up to 4000 watts maximum power. Ensure your amplifier is appropriately matched and does not exceed this rating to prevent damage.
• 適切な配線: Always use appropriate gauge wiring for power, ground, and speaker connections. Incorrect wiring can lead to overheating and fire hazards.
• 換気： サブウーファーの周囲に十分な換気を確保し、 amplifier to prevent overheating, especially during extended use.
• 安全な取り付け: Mount the subwoofer securely in a suitable enclosure or location to prevent it from becoming a projectile during sudden stops or accidents.
• 聴覚保護: 高い音圧レベルに長時間さらされると、永久的な聴覚障害を引き起こす可能性があります。音量を調整する際はご注意ください。
• 専門家による設置: If you are unsure about any aspect of installation, consult a qualified car audio professional.

3. パッケージ内容

Carefully unpack your Quantum Audio QWX400012D4 subwoofer and check for any signs of damage. The package should contain the following items:

• Quantum Audio X Series QWX400012D4 12-inch Subwoofer (1 unit)

If any items are missing or damaged, please contact your dealer or Quantum Audio customer support immediately.

4. 特徴

The Quantum Audio QWX400012D4 subwoofer incorporates several key features designed for optimal performance and durability:

• Ground-Shaking Bass Design: Engineered to produce deep, impactful bass frequencies.
• Max Excursion and Durability: Features a double-stitched high excursion foam surround and a die-cast aluminum vented basket for maximum cone movement and structural integrity.
• Power Handling Up to 4000 Watts (Maximum): Capable of handling significant power for high-output audio systems.
• Rugged Stylish Look: Protective magnet cover and overall design provide a robust and aesthetically pleasing 外観。
• 12インチサイズ: Standard size for versatile installation in various vehicle types and enclosures.
• 2.5インチ高温ボイスコイル： Designed to withstand high power levels and prolonged use without thermal breakdown.
• Compressed Paper Cone: Known for its ability to produce clear and accurate bass tones.
• Proprietary Full Round PVC Gasket: Ensures a secure seal when mounted.
• Heavy-Gauge Spring Terminals: Provide reliable and secure electrical connections.

図4.1：上 View of Subwoofer Cone and Surround

Figure 4.2: Subwoofer Magnet and Model Label

5. セットアップ

Proper setup is crucial for optimal performance and longevity of your subwoofer. Follow these general guidelines:

5.1 エンクロージャの選択

The QWX400012D4 is designed to perform well in both sealed and ported enclosures. Consult a car audio specialist or use a reputable enclosure design software to determine the ideal enclosure volume and port tuning frequency for your specific application and desired sound characteristics.

5.2 取り付け

Mount the subwoofer securely within the chosen enclosure. Ensure that the mounting holes align perfectly and use appropriate screws to fasten the subwoofer to the enclosure baffle. Avoid overtightening, which can strip screws or damage the subwoofer frame.

5.3配線接続

The QWX400012D4 is a Dual Voice Coil (DVC) 4-ohm subwoofer. This allows for various wiring configurations to achieve different impedance loads at the amplifier. Common configurations include:

• 並列配線（2オーム）: 両方のボイスコイルのプラス端子とマイナス端子を接続します。次に、これらの接続端子を ampライファイア。この構成では2オームの負荷となります。
• 直列配線（8オーム）: 片方のボイスコイルのプラス端子をもう一方のボイスコイルのマイナス端子に接続します。残りのプラス端子とマイナス端子を ampライファイア。この構成では8オームの負荷となります。

Always ensure correct polarity (+ to + and - to -) to prevent phase issues. Use heavy-gauge speaker wire (e.g., 12-gauge or 10-gauge) for optimal power transfer.

Figure 5.1: Subwoofer Terminals for Wiring

5.4 Ampライフラインマッチング

選択してください amplifier that can provide sufficient power to the subwoofer without clipping. While the subwoofer can handle up to 4000 watts maximum, it is recommended to use an amplifier that provides RMS power within the subwoofer's continuous power handling capabilities (not explicitly stated in provided data, but typically lower than max). Ensure the amplifier's impedance output matches the subwoofer's wired impedance load.

6.運用

Once installed, follow these guidelines for operating your Quantum Audio subwoofer:

6.1 慣らし期間

Allow a break-in period of approximately 20-30 hours of normal listening before pushing the subwoofer to its limits. This allows the suspension components (surround and spider) to loosen up and reach their optimal compliance, improving performance and longevity.

6.2 Ampライファイアゲインとクロスオーバー設定

適切に設定してください amplifier's gain (input sensitivity) to match the output voltage of your head unit. Avoid setting the gain too high, as this can lead to clipping and damage the subwoofer. Utilize the low-pass filter (LPF) on your amplifier or head unit to send only bass frequencies to the subwoofer, typically set between 60Hz and 100Hz, depending on your system and preferences.

6.3 リスニングレベル

While the QWX400012D4 is designed for high output, avoid prolonged listening at extremely high volumes that cause audible distortion or excessive excursion. If you hear distortion, reduce the volume immediately.

7. 仕様

Detailed technical specifications for the Quantum Audio X Series QWX400012D4 Subwoofer:

8. メンテナンス

To ensure the longevity and continued performance of your subwoofer, follow these simple maintenance tips:

• クリーニング： サブウーファーのコーンとサラウンドは、柔らかく乾いた布で拭いてください。刺激の強い化学薬品や研磨剤入りの洗剤の使用は避けてください。
• 検査： Periodically inspect the speaker terminals and wiring for any signs of corrosion or loose connections.
• 環境保護: サブウーファーを極端な温度、直射日光、湿気から保護してください。
• パンクを避ける: Be careful not to puncture or tear the cone or surround, as this will significantly degrade performance.

9。 トラブルシューティング

If you experience issues with your Quantum Audio subwoofer, refer to the following common problems and solutions:

• 音が出ない:
  • Check all wiring connections (power, ground, remote, speaker) at both the ampスピーカーとサブウーファー。
  • 確認する amp電源がオンになっています（電源インジケータライトを確認してください）。
  • ヒューズを確認してください ampライファと電源線。
  • ヘッドユニットがオーディオ信号を送信していることを確認してください amplifier。
• 歪んだ音:
  • 減らす ampライファイアゲイン設定。
  • Check for proper low-pass filter (LPF) settings on the ampリファイアまたはヘッドユニット。
  • Ensure the subwoofer is not over-driven (reduce volume).
  • Check for loose mounting or enclosure rattles.
• 弱い低音出力:
  • Verify correct wiring impedance match between subwoofer and amplifier。
  • チェック ampライファイアのゲイン設定。
  • Ensure proper phase (polarity) of the subwoofer wiring.
  • Confirm the enclosure volume and tuning are appropriate for the subwoofer.
• サブウーファーの過熱:
  • サブウーファーの周囲に十分な換気を確保し、 amplifier。
  • チェック amplifier clipping (distortion).
  • 確認する amplifier's power output is not excessive for the subwoofer's rating.

If the problem persists after attempting these solutions, contact Quantum Audio customer support or a qualified car audio technician.

10. 保証とサポート

The Quantum Audio X Series QWX400012D4 Subwoofer comes with a 限定保証. For specific details regarding warranty coverage, duration, and terms, please refer to the warranty card included with your product or visit the official Quantum Audio webサイトでご確認ください。保証請求に備えて購入証明書を保管してください。

カスタマーサポート

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Quantum Audio customer support through their official webサイトまたは購入時に提供された連絡先情報を参照してください。