MXR M87 ベースコンプレッサーペダル 取扱説明書

1. はじめに

The MXR M87 Bass Compressor is designed to bring studio-quality compression to your bass rig. This pedal offers a comprehensive set of controls to fine-tune your sound, from subtle dynamic control to pronounced compression effects. Featuring CHT™ Constant Headroom Technology, it ensures clear performance and ample headroom. The transparent compression allows your full dynamic range to pass through until the signal reaches the compression threshold, which is visually indicated by ten bright gain-reduction status LEDs. Encased in a durable, lightweight aluminum housing, the M87 is built for the road.

主な特徴:

• CHT™ Constant Headroom Technology for clear, clean performance.
• True bypass circuitry for uncolored tone when disengaged.
• Ten highly visible gain-reduction status LEDs for precise visual feedback.
• Transparent compression that preserves dynamic range until threshold.
• Durable, lightweight aluminum housing.

2. コントロールと機能view

The MXR M87 Bass Compressor features a complete array of controls to shape your bass tone effectively.

図1：上 view of the MXR M87 Bass Compressor, showing the control knobs and footswitch.

コントロールノブ：

• 攻撃： Adjusts how quickly the compressor reacts to the input signal. Higher settings result in a slower attack, allowing more of the initial transient to pass through.
• リリース： Controls how quickly the compressor returns to its uncompressed state after the signal drops below the threshold. Higher settings result in a slower release.
• 比： Determines the amount of compression applied once the signal exceeds the threshold. Higher ratios mean more aggressive compression.
• 入力： Sets the input level of your bass signal into the compressor. This control also affects when the compression threshold is met.
• OUTPUT： ペダルの全体的な出力音量を調整します。

LEDインジケーター:

• ゲインリダクションLED： Ten bright LEDs provide visual feedback on the amount of gain reduction being applied in real-time. This helps in precisely setting the compression.
• ステータスLED： Indicates whether the pedal is engaged (on) or in true bypass mode (off).

Jacks and Footswitch:

図2：側面 view of the MXR M87 Bass Compressor, highlighting the input and output jacks.

• 入力ジャック： Connect your bass guitar or the output of another pedal to this 1/4-inch input.
• 出力ジャック： Connect this 1/4-inch output to your ampリバーブまたはシグナル チェーン内の次のペダルの入力として使用します。
• POWER Jack: Connect a 9V DC power adapter (not included) to this jack.
• BYPASSフットスイッチ: Toggles the effect on and off. The pedal features true bypass, ensuring your tone remains unaffected when the pedal is disengaged.

3. セットアップ

Follow these steps to set up your MXR M87 Bass Compressor:

1. ベースギターを 入力 jack of the M87 using a standard 1/4-inch instrument cable.
2. 接続する 出力 jack of the M87 to your amp別の 1/4 インチ楽器ケーブルを使用して、信号チェーン内のリファイアまたは次のペダルに接続します。
3. Connect a 9V DC power adapter (not included) to the 力 jack on the side of the pedal. Ensure the power supply meets the pedal's requirements (9V DC, center-negative).
4. 電源を入れる amplifier and adjust its volume to a suitable level.

4. 操作手順

The MXR M87 Bass Compressor is designed for intuitive operation. Experiment with the controls to find the perfect compression for your playing style and musical context.

基本操作:

1. Engage the pedal by pressing the バイパスフットスイッチ. The STATUS LED will illuminate.
2. Start with all control knobs (ATTACK, RELEASE, RATIO, INPUT, OUTPUT) at their 12 o'clock positions.
3. Play your bass and adjust the 入力 knob until the GAIN REDUCTION LEDs show consistent activity, indicating that the compressor is engaging.
4. 調整する 比率 knob to control the intensity of the compression. Lower ratios provide subtle smoothing, while higher ratios create a more pronounced, squashed effect.
5. 微調整 攻撃 そして リリース knobs to shape the transient response and sustain characteristics. Faster attack settings will compress the initial pluck more, while slower attacks allow more punch. Faster release settings will return to uncompressed sound quickly, while slower releases provide longer sustain.
6. 使用 出力 knob to match the volume of the compressed signal to your bypassed signal, or to provide a boost if desired.

Tips for Tone Shaping:

• For subtle peak limiting and dynamic control, use a lower RATIO setting (e.g., 2:1 or 4:1) with moderate INPUT.
• To achieve a more sustained and punchy tone, increase the RATIO and adjust ATTACK to be slightly slower, allowing the initial transient to cut through before compression engages.
• The GAIN REDUCTION LEDs are crucial for understanding how the compressor is reacting to your playing. Aim for consistent, but not excessive, gain reduction for natural-sounding compression.

5. 仕様

6. メンテナンス

To ensure the longevity and optimal performance of your MXR M87 Bass Compressor, follow these maintenance guidelines:

• クリーニング： ペダルの外装を拭く際は、柔らかく乾いた布をご使用ください。研磨剤入りの洗剤や溶剤は、仕上げを傷める可能性があるため、使用しないでください。
• ストレージ： Store the pedal in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, remove any batteries to prevent leakage.
• 接続: Periodically check all input/output jacks and power connections for any signs of wear or corrosion. Ensure cables are securely plugged in during use.
• 電源： Always use a regulated 9V DC, center-negative power supply to prevent damage to the pedal.

7。 トラブルシューティング

If you encounter issues with your MXR M87 Bass Compressor, refer to the following common troubleshooting steps:

• 音が出ない:
  • すべてのケーブル接続を確認してください（機器、 ampライフファイアー、パワー。
  • 電源が正しく接続され、機能していることを確認します。
  • 機器と ampペダルをバイパスすることで、リファイアは正常に動作します。
  • Check the OUTPUT knob setting; ensure it is not turned down completely.
• 不要なノイズ/ハム音:
  • 高品質で分離された電源を使用していることを確認してください。
  • ケーブルに欠陥がないか確認してください。
  • Try the pedal in a different location to rule out electrical interference.
  • Adjust the INPUT and OUTPUT knobs to avoid overdriving your amplifierまたは他のペダル。
• Compression Not Engaging:
  • 増加 入力 knob setting. The GAIN REDUCTION LEDs should light up when compression is active.
  • 確実に 比率 knob is set above its minimum value.

8. 箱の中身

Your MXR M87 Bass Compressor package includes:

• MXR Bass Compressor Pedal

9. 保証とサポート

保証情報およびテクニカルサポートについては、MXRの公式ウェブサイトをご覧ください。 web当サイトをご覧いただくか、正規販売店にお問い合わせください。保証請求の際に必要となりますので、購入証明書を保管してください。