MXR M87 Bass Compressor Pedal Instruction Manual

1. المقدمة

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.

المميزات الرئيسية:

• 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. عناصر التحكم والميزاتview

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

الشكل 1: الجزء العلوي view of the MXR M87 Bass Compressor, showing the control knobs and footswitch.

مقابض التحكم:

• هجوم: 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.
• إطلاق سراح: Controls how quickly the compressor returns to its uncompressed state after the signal drops below the threshold. Higher settings result in a slower release.
• نسبة: Determines the amount of compression applied once the signal exceeds the threshold. Higher ratios mean more aggressive compression.
• إدخال: Sets the input level of your bass signal into the compressor. This control also affects when the compression threshold is met.
• انتاج: يضبط مستوى الصوت الإجمالي للدواسة.

مؤشرات LED:

• مصابيح LED لتخفيض الكسب: Ten bright LEDs provide visual feedback on the amount of gain reduction being applied in real-time. This helps in precisely setting the compression.
• مؤشر LED للحالة: Indicates whether the pedal is engaged (on) or in true bypass mode (off).

Jacks and Footswitch:

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

• جاك المدخلات: Connect your bass guitar or the output of another pedal to this 1/4-inch input.
• مقبس الإخراج: Connect this 1/4-inch output to your amplifier or the input of the next pedal in your signal chain.
• POWER Jack: Connect a 9V DC power adapter (not included) to this jack.
• تجاوز مفتاح القدم: Toggles the effect on and off. The pedal features true bypass, ensuring your tone remains unaffected when the pedal is disengaged.

3. الإعداد

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

1. قم بتوصيل جيتار البيس الخاص بك بـ مدخل jack of the M87 using a standard 1/4-inch instrument cable.
2. قم بتوصيل الناتج jack of the M87 to your ampقم بتوصيل مكبر الصوت أو الدواسة التالية في سلسلة الإشارة الخاصة بك باستخدام كابل آلة موسيقية آخر مقاس 1/4 بوصة.
3. Connect a 9V DC power adapter (not included) to the قوة jack on the side of the pedal. Ensure the power supply meets the pedal's requirements (9V DC, center-negative).
4. قم بتشغيل جهازك amplifier and adjust its volume to a suitable level.

4. تعليمات التشغيل

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.

التشغيل الأساسي:

1. Engage the pedal by pressing the BYPASS فوت سويتش. 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 مدخل knob until the GAIN REDUCTION LEDs show consistent activity, indicating that the compressor is engaging.
4. ضبط نسبة knob to control the intensity of the compression. Lower ratios provide subtle smoothing, while higher ratios create a more pronounced, squashed effect.
5. صقل ملف هجوم و يطلق 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. استخدم الناتج 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. المواصفات

6. الصيانة

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

• تنظيف: Use a soft, dry cloth to clean the pedal's exterior. Avoid abrasive cleaners or solvents, as they may damage the finish.
• تخزين: 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.
• الاتصالات: Periodically check all input/output jacks and power connections for any signs of wear or corrosion. Ensure cables are securely plugged in during use.
• مزود الطاقة: Always use a regulated 9V DC, center-negative power supply to prevent damage to the pedal.

7. استكشاف الأخطاء وإصلاحها

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

• لا يوجد صوت:
  • تحقق من جميع توصيلات الكابلات (الأجهزة، ampمكبر الصوت، الطاقة).
  • تأكد من توصيل مصدر الطاقة بشكل صحيح وعمله بشكل سليم.
  • تأكد من أن جهازك و amplifier are working correctly by bypassing the pedal.
  • Check the OUTPUT knob setting; ensure it is not turned down completely.
• ضوضاء/طنين غير مرغوب فيه:
  • Ensure you are using a high-quality, isolated power supply.
  • تحقق من وجود كابلات تالفة.
  • Try the pedal in a different location to rule out electrical interference.
  • Adjust the INPUT and OUTPUT knobs to avoid overdriving your ampليفر أو دواسات أخرى.
• Compression Not Engaging:
  • زيادة مدخل knob setting. The GAIN REDUCTION LEDs should light up when compression is active.
  • تأكد من نسبة knob is set above its minimum value.

8. ماذا يوجد في الصندوق

Your MXR M87 Bass Compressor package includes:

• MXR Bass Compressor Pedal

9. الضمان والدعم

للحصول على معلومات الضمان والدعم الفني، يرجى الرجوع إلى موقع MXR الرسمي webالموقع أو تواصل مع الوكيل المعتمد. احتفظ بإيصال الشراء لأي مطالبات بالضمان.