Massive Audio GT12-12" Subwoofer Instruction Manual

導入

The Massive Audio GT12 is a precision-engineered subwoofer designed to deliver deep, clean, and powerful low frequencies. This manual provides essential information for the proper installation, operation, and maintenance of your GT12 subwoofer to ensure optimal performance and longevity.

The GT12 features a textured non-pressed pulp cone reinforced with resin for optimal rigidity and responsiveness. The cone is sewn with dual tight red stitching into a custom high-roll foam surround. A heavy-gauge steel basket provides stability, while dual stacked high-flux Y30 60oz strontium ferrite magnets generate motor strength. The 2" high-temperature dual 4-ohm voice coil ensures superior power handling and consistent performance. The suspension system includes a high-quality spider and high-grade woven tinsel leads connected to a custom terminal case with flexible pure copper wiring.

製品の特徴

• Deep, Powerful Bass Performance: Delivers chest-thumping lows with 500W RMS power handling. Features a 12" textured non-pressed pulp cone with resin reinforcement and a custom high-roll foam surround for accurate, distortion-free bass.
• Premium Motor Structure: Built with dual stacked high-flux Y30 60oz strontium ferrite magnets and a 2" high-temperature dual 4-ohm voice coil (made in the USA) for exceptional efficiency, heat resistance, and long-lasting performance.
• Heavy-Duty Build Quality: A heavy-gauge steel basket with industrial textured paint provides durability and vibration resistance, ensuring stable performance.
• High-Quality Suspension System: A responsive, high-grade spider and woven tinsel leads connect to a custom terminal case with flexible pure copper wiring, guaranteeing reliable power transfer and flexibility.
• 美的デザイン: Features bold red stitching through the cone and a custom Massive Audio logo on the foam surround.

セットアップとインストール

Proper installation is crucial for the performance and safety of your subwoofer. If you are unsure about any steps, consult a professional audio installer.

安全上の注意

• 電気作業を始める前に必ず車両のバッテリーを外してください。
• 短絡を防止するために、すべての配線が適切に絶縁されていることを確認してください。
• 車両の運転中にサブウーファーが動かないようにしっかりと取り付けます。
• 目の保護具を含む適切な安全装備を着用してください。

配線構成（デュアル4オームボイスコイル）

The GT12 features dual 4-ohm voice coils, offering flexibility in wiring to achieve different impedance loads for your amplifier。

• 直列配線（8オーム）: Connect the positive terminal of one voice coil to the negative terminal of the other voice coil. The remaining positive and negative terminals become the amplifier input. This configuration results in an 8-ohm load.
• 並列配線（2オーム）: Connect both positive terminals together and both negative terminals together. The combined positive and negative terminals become the amplifier input. This configuration results in a 2-ohm load.

参照してください amplifier's specifications to determine the optimal impedance load for maximum power output and stability.

エンクロージャの推奨事項

The performance of your subwoofer is highly dependent on the enclosure it is installed in. Consult the subwoofer's Thiele-Small parameters (available on the manufacturer's website) for specific sealed or ported enclosure volume recommendations. An improperly sized enclosure can lead to poor sound quality or damage to the subwoofer.

図1：側面 view of the GT12 subwoofer, highlighting the sturdy construction and wiring connections.

図2: 角度付き view of the GT12 subwoofer, illustrating the cone and high-roll foam surround.

操作手順

初回電源投入と慣らし運転

After installation, perform an initial power-up at a low volume to verify all connections are correct and the subwoofer is functioning as expected. It is recommended to allow a break-in period of approximately 10-20 hours of normal listening before operating the subwoofer at high volumes. This allows the suspension components to loosen and achieve optimal performance.

設定 Ampリファイアゲイン

設定する ampライファイアのゲインコントロールを注意深く確認してください。ゲインコントロールはボリュームノブではなく、出力ボリュームと連動します。tage of your source unit to the input sensitivity of the ampゲイン設定が不適切だと、歪みが生じ、サブウーファーが損傷する可能性があります。

• まずは ampライフライザーゲインを最小設定にします。
• Play a familiar track with strong bass content at a moderate volume on your source unit (typically 75-80% of maximum).
• ゆっくりと増やします amplifier gain until you hear any audible distortion.
• Once distortion is heard, reduce the gain slightly until the sound is clean.

クロスオーバー設定

あなたの amplifier's or head unit's low-pass filter (LPF) to ensure the subwoofer only reproduces low frequencies. A typical LPF setting for a subwoofer is between 60Hz and 100Hz, depending on your other speakers and personal preference. Avoid sending full-range audio signals to the subwoofer.

図3：上 view of the GT12 subwoofer, displaying the cone and embossed Massive Audio logo on the surround.

メンテナンス

The Massive Audio GT12 subwoofer is designed for durability, but proper care will extend its lifespan and maintain performance.

• クリーニング： コーンとサラウンドのお手入れは、柔らかく乾いた布で行ってください。刺激の強い化学薬品や過度の湿気の使用は避けてください。
• 検査： サブウーファーを定期的に点検し、コーンやサラウンド部分の破れ、接続部の緩み、異臭などの損傷の兆候がないか確認してください。
• 環境： Ensure the subwoofer is installed in an environment free from excessive moisture, direct sunlight, and extreme temperatures.

図4: 角度付き view of the GT12 subwoofer with an optional protective grille, demonstrating potential accessory integration.

トラブルシューティング

If you experience issues with your GT12 subwoofer, refer to the following common troubleshooting steps:

• 音が出ない:
  • すべての電源とアースの接続を確認してください amplifier。
  • Verify the remote turn-on wire is connected and receiving voltage.
  • RCA ケーブルがしっかりと接続され、損傷がないことを確認します。
  • チェックしてください ampライファイアの保護モードインジケーター。
  • スピーカーケーブルがサブウーファーに正しく接続されていることを確認し、 amplifier。
• 歪んだ音:
  • 減らす ampライファイアのゲイン設定。
  • 適切なクロスオーバー設定 (LPF) を確認します。
  • Ensure the subwoofer is not over-excursioning (moving too far).
  • Inspect speaker wires for fraying or short circuits.
• 過熱：
  • 確認する amplifier's impedance load matches the subwoofer's wiring.
  • 十分な換気を確保し、 amplifier。
  • Reduce listening volume or gain settings.

If these steps do not resolve the issue, contact Massive Audio customer support or a qualified technician.

図5：下 view of the GT12 subwoofer, revealing the robust magnet assembly and cooling features.

仕様

保証とサポート

Massive Audio products are designed and manufactured to the highest quality standards. For specific warranty information, please refer to the warranty card included with your product or visit the official Massive Audio website. For technical support, troubleshooting assistance, or inquiries about replacement parts, please contact Massive Audio customer service through their official channels.

連絡先： ぜひご覧ください Massive Audio Store on Amazon またはそのオフィシャル web最新のサポート オプションについては、サイトをご覧ください。