1. ບົດແນະນຳ
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.
ຄຸນນະສົມບັດທີ່ສໍາຄັນ:
- 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. ການຄວບຄຸມແລະຄຸນນະສົມບັດຫຼາຍກວ່າview
The MXR M87 Bass Compressor features a complete array of controls to shape your bass tone effectively.

ຮູບທີ 1: ທາງເທິງ view of the MXR M87 Bass Compressor, showing the control knobs and footswitch.
ປຸ່ມຄວບຄຸມ:
- ການໂຈມຕີ: 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.
- ປ່ອຍ: Controls how quickly the compressor returns to its uncompressed state after the signal drops below the threshold. Higher settings result in a slower release.
- ອັດຕາສ່ວນ: Determines the amount of compression applied once the signal exceeds the threshold. Higher ratios mean more aggressive compression.
- ການປ້ອນຂໍ້ມູນ: Sets the input level of your bass signal into the compressor. This control also affects when the compression threshold is met.
- ຂາອອກ: ປັບລະດັບສຽງສົ່ງອອກໂດຍລວມຂອງ pedal.
ຕົວຊີ້ວັດ LED:
- ໄດ້ຮັບ LEDs ຫຼຸດຜ່ອນ: Ten bright LEDs provide visual feedback on the amount of gain reduction being applied in real-time. This helps in precisely setting the compression.
- LED ສະຖານະ: Indicates whether the pedal is engaged (on) or in true bypass mode (off).
Jacks and Footswitch:

ຮູບ 2: ຂ້າງ view of the MXR M87 Bass Compressor, highlighting the input and output jacks.
- ປ້ອນ Jack: Connect your bass guitar or the output of another pedal to this 1/4-inch input.
- ອອກ Jack: Connect this 1/4-inch output to your amplifier or the input of the next pedal in your signal chain.
- ແຈັກໄຟ: Connect a 9V DC power adapter (not included) to this jack.
- ສະວິດຕີນ BYPASS: Toggles the effect on and off. The pedal features true bypass, ensuring your tone remains unaffected when the pedal is disengaged.
3. ຕັ້ງຄ່າ
Follow these steps to set up your MXR M87 Bass Compressor:
- ເຊື່ອມຕໍ່ guitar bass ຂອງທ່ານກັບ ປ້ອນຂໍ້ມູນ jack of the M87 using a standard 1/4-inch instrument cable.
- ເຊື່ອມຕໍ່ ອອກ jack of the M87 to your ampເຄື່ອງເພີ່ມສັນຍານ ຫຼື ກະເບື້ອງຕໍ່ໄປໃນລະບົບຕ່ອງໂສ້ສັນຍານຂອງທ່ານໂດຍໃຊ້ສາຍເຄື່ອງມືຂະໜາດ 1/4 ນິ້ວອີກອັນໜຶ່ງ.
- Connect a 9V DC power adapter (not included) to the ພະລັງງານ jack on the side of the pedal. Ensure the power supply meets the pedal's requirements (9V DC, center-negative).
- ເປີດຂອງທ່ານ amplifier and adjust its volume to a suitable level.
ວິດີໂອທີ 1: ຈົບແລ້ວview of the MXR M87 Bass Compressor, demonstrating its features and connections.
4. ຄໍາແນະນໍາການດໍາເນີນງານ
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.
ການດໍາເນີນງານພື້ນຖານ:
- Engage the pedal by pressing the BYPASS ສະຫຼັບຕີນ. The STATUS LED will illuminate.
- Start with all control knobs (ATTACK, RELEASE, RATIO, INPUT, OUTPUT) at their 12 o'clock positions.
- Play your bass and adjust the ປ້ອນຂໍ້ມູນ knob until the GAIN REDUCTION LEDs show consistent activity, indicating that the compressor is engaging.
- ປັບ ອັດຕາສ່ວນ knob to control the intensity of the compression. Lower ratios provide subtle smoothing, while higher ratios create a more pronounced, squashed effect.
- ປັບປຸງໄດ້ ການໂຈມຕີ ແລະ ປ່ອຍ 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.
- ໃຊ້ ອອກ 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. ຂໍ້ມູນຈໍາເພາະ
| ຂໍ້ມູນຈໍາເພາະ | ມູນຄ່າ |
|---|---|
| ນ້ໍາຫນັກລາຍການ | 11.68 ອອນ |
| ຂະໜາດສິນຄ້າ | 2.6"L x 6"W x 4.4"H |
| ໝາຍເລກຕົວແບບ | M87 |
| ວັດສະດຸຮ່າງກາຍ | ອາລູມີນຽມ |
| ສີ | ສີຂາວ |
| ປະເພດຕົວເຊື່ອມຕໍ່ | ຊ່ອງສຽບສຽງ 1/4 ນິ້ວ (6.35 ມມ). |
| ການໂຕ້ຕອບຮາດແວ | ສຽງ 1/4 ນິ້ວ |
| ຮູບແບບສັນຍານ | ອະນາລັອກ |
| ແຫຼ່ງພະລັງງານ | ໄຟຟ້າສາຍ |
| ສະບັບtage | 9 ໂວນ |
| ໝໍ້ໄຟ | 1 9V battery required (not included) |
6. ບໍາລຸງຮັກສາ
To ensure the longevity and optimal performance of your MXR M87 Bass Compressor, follow these maintenance guidelines:
- ທໍາຄວາມສະອາດ: Use a soft, dry cloth to clean the pedal's exterior. Avoid abrasive cleaners or solvents, as they may damage the finish.
- ການເກັບຮັກສາ: 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.
- ການເຊື່ອມຕໍ່: Periodically check all input/output jacks and power connections for any signs of wear or corrosion. Ensure cables are securely plugged in during use.
- ການສະຫນອງພະລັງງານ: Always use a regulated 9V DC, center-negative power supply to prevent damage to the pedal.
7. ການແກ້ໄຂບັນຫາ
If you encounter issues with your MXR M87 Bass Compressor, refer to the following common troubleshooting steps:
- ບໍ່ມີສຽງ:
- ກວດສອບການເຊື່ອມຕໍ່ສາຍໄຟທັງຫມົດ (ເຄື່ອງມື, amplifier, ພະລັງງານ).
- ໃຫ້ແນ່ໃຈວ່າແຫຼ່ງຈ່າຍໄຟໄດ້ເຊື່ອມຕໍ່ຢ່າງຖືກຕ້ອງ ແລະ ເຮັດວຽກຢ່າງຖືກຕ້ອງ.
- Verify that your instrument and amplifier ກໍາລັງເຮັດວຽກຢ່າງຖືກຕ້ອງໂດຍການຂ້າມ pedal ໄດ້.
- Check the OUTPUT knob setting; ensure it is not turned down completely.
- ສິ່ງລົບກວນທີ່ບໍ່ຕ້ອງການ / Hum:
- Ensure you are using a high-quality, isolated power supply.
- ກວດສອບສໍາລັບສາຍໄຟຜິດພາດ.
- Try the pedal in a different location to rule out electrical interference.
- Adjust the INPUT and OUTPUT knobs to avoid overdriving your amplifier ຫຼື pedals ອື່ນໆ.
- Compression Not Engaging:
- ເພີ່ມທະວີການ ປ້ອນຂໍ້ມູນ knob setting. The GAIN REDUCTION LEDs should light up when compression is active.
- ຮັບປະກັນ ອັດຕາສ່ວນ knob is set above its minimum value.
8. ສິ່ງທີ່ຢູ່ໃນກ່ອງ
Your MXR M87 Bass Compressor package includes:
- MXR Bass Compressor Pedal
9. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
For warranty information and technical support, please refer to the official MXR webເວັບໄຊ ຫຼືຕິດຕໍ່ຕົວແທນຈໍາໜ່າຍທີ່ໄດ້ຮັບອະນຸຍາດຂອງທ່ານ. ຮັກສາຫຼັກຖານການຊື້ຂອງທ່ານສໍາລັບການຮຽກຮ້ອງການຮັບປະກັນໃດໆ.





