ຄູ່ມືຜູ້ໃຊ້ເຄື່ອງປະສົມສຽງ Behringer UB802 ສຽງລົບກວນຕ່ຳພິເສດ 8-Input 2-Bus

1. ບົດແນະນຳ

The Behringer UB802 is an ultra-low noise, 8-input, 2-bus audio mixer designed for various audio applications, from home studios to live sound reinforcement. It features high-quality microphone preamplifiers, a 3-band equalizer on all channels, and flexible routing options for professional sound mixing.

ຄຸນ​ນະ​ສົມ​ບັດ​ທີ່​ສໍາ​ຄັນ​ປະ​ກອບ​ມີ​:

• Ultra-low noise design, highest possible headroom, and ultra-transparent audio.
• Two state-of-the-art, studio-grade IMP "Invisible" Mic Preamps with 130 dB dynamic range for 24-bit, 192 kHz sampling rate inputs.
• Effective, extremely musical 3-band EQ on all channels.
• Six balanced high-headroom line inputs.
• One post-fader FX send per channel for external FX devices.

2. ຄໍາແນະນໍາຄວາມປອດໄພທີ່ສໍາຄັນ

Please read these instructions carefully before operating your Behringer UB802 mixer. Retain these instructions for future reference.

• ແຫຼ່ງພະລັງງານ: ພຽງແຕ່ໃຊ້ອະແດບເຕີໄຟທີ່ໃຫ້ມາກັບເຄື່ອງ. ຮັບປະກັນ voltage ກົງກັບການສະຫນອງພະລັງງານໃນທ້ອງຖິ່ນຂອງທ່ານ.
• ການລະບາຍອາກາດ: ຫ້າມປິດຊ່ອງລະບາຍອາກາດໃດໆ. ຕິດຕັ້ງຕາມຄໍາແນະນໍາຂອງຜູ້ຜະລິດ.
• ນ​້​ໍ​າ​ແລະ​ຄວາມ​ຊຸ່ມ​: ຫ້າມໃຊ້ອຸປະກອນນີ້ໃກ້ກັບນໍ້າ ຫຼື ປ່ອຍໃຫ້ມັນຕົກ ຫຼື ກະແຈກກະຈາຍ.
• ຄວາມຮ້ອນ: ຫ້າມ​ຕິດ​ຕັ້ງ​ໃກ້​ກັບ​ແຫຼ່ງ​ຄວາມ​ຮ້ອນ​ເຊັ່ນ​ລັງ​ສີ​, ເຄື່ອງ​ບັນ​ທຶກ​ຄວາມ​ຮ້ອນ​, ເຕົາ​ຫຼື​ອຸ​ປະ​ກອນ​ອື່ນໆ (ລວມ​ທັງ​. amplifiers) ທີ່ຜະລິດຄວາມຮ້ອນ.
• ສາຍໄຟ: ປົກປ້ອງສາຍໄຟຈາກການຖືກສຽບ ຫຼື ສຽບ, ໂດຍສະເພາະຢູ່ປລັກສຽບ, ກ່ອງຮັບສະດວກ, ແລະຈຸດທີ່ພວກມັນອອກຈາກອຸປະກອນ.
• ການບໍລິການ: ອ້າງອີງການບໍລິການທັງໝົດໃຫ້ກັບພະນັກງານບໍລິການທີ່ມີຄຸນວຸດທິ. ການບໍລິການແມ່ນຕ້ອງການເມື່ອອຸປະກອນໄດ້ຮັບຄວາມເສຍຫາຍໃນທາງໃດກໍ່ຕາມເຊັ່ນ: ສາຍໄຟຫຼືປລັກສຽບຖືກເສຍຫາຍ, ແຫຼວຮົ່ວໄຫຼຫຼືສິ່ງຂອງຕົກເຂົ້າໄປໃນອຸປະກອນ, ອຸປະກອນຖືກຝົນຫຼືຄວາມຊຸ່ມຊື່ນ, ບໍ່ເຮັດວຽກຕາມປົກກະຕິ. , ຫຼື​ໄດ້​ຖືກ​ຫຼຸດ​ລົງ​.

3. ການຄວບຄຸມແລະຕົວເຊື່ອມຕໍ່

3.1 ແຜງເທິງສຸດview

This section details the controls and connectors located on the top panel of your UB802 mixer.

ຮູບ 1: ເທິງລົງລຸ່ມ view of the Behringer UB802 mixer's control panel. This image displays the microphone and line inputs, gain controls, 3-band EQ sections, FX send, pan/balance controls, channel level knobs, main mix section, phantom power switch, and level meters.

1. MIC IN (Channels 1-2): XLR inputs for connecting microphones. These inputs provide +48V phantom power when activated.
2. LINE IN (Channels 1-2, 3/4, 5/6): 1/4" TRS inputs for connecting line-level sources such as keyboards, drum machines, or other audio devices. Channels 3/4 and 5/6 are stereo pairs.
3. GAIN (Channels 1-2): Adjusts the input sensitivity for the microphone and line inputs. Use this to set the optimal signal level before it reaches the mixer's internal processing.
4. EQ (ສູງ, ກາງ, ຕໍ່າ): Three-band equalizer controls for shaping the tone of each channel. HIGH affects frequencies around 12 kHz, MID around 2.5 kHz, and LOW around 80 Hz.
5. FX ສົ່ງ: This knob controls the amount of signal sent from the respective channel to the external effects processor connected to the FX Send output. It is a post-fader send.
6. PAN (ຊ່ອງ 1-2): Positions the mono signal within the stereo sound field (left to right).
7. BAL (Channels 3/4, 5/6): Adjusts the balance between the left and right signals of the stereo input channels.
8. ລະດັບ: Adjusts the output volume of each individual channel to the main mix.
9. ພະລັງງານ PHANTOM (+48V): A switch to activate +48V phantom power for condenser microphones connected to the XLR inputs.
10. ຄລິບ LED: Illuminates when the input signal is too high, indicating potential clipping or distortion. Reduce the GAIN control if this LED lights up frequently.
11. ລະດັບແມັດ: LED indicators displaying the overall output level of the main mix. Aim for levels around 0 dB during normal operation.
12. ສ່ວນປະສົມຫຼັກ: Controls the overall output volume of the stereo main mix.
13. 2-TRACK IN/OUT: RCA connectors for connecting external recording devices or playback sources (e.g., CD players, tape decks).
14. CONTROL ROOM/PHONES: Output for connecting headphones or control room monitors. The level knob adjusts the volume for both.

3.2 ການເຊື່ອມຕໍ່ແຜງດ້ານຫລັງ

This section details the connections located on the rear panel of your UB802 mixer.

ຮູບ 2: ດ້ານຫລັງ view of the Behringer UB802 mixer. This image highlights the AC POWER IN port, MAIN OUT (L/R) jacks, FX SEND, and AUX RETURN jacks.

1. ພະລັງງານ AC ໃນ: Connect the supplied Behringer power adapter here. Use only the specified power supply.
2. ທາງອອກຫຼັກ (ຊ້າຍ/ຂວາ): 1/4" TRS outputs for connecting the main stereo mix to an amplifier, powered speakers, or a recording interface.
3. FX ສົ່ງ: 1/4" TS output for sending the combined FX send signal to the input of an external effects processor.
4. AUX RETURN: 1/4" TS input for receiving the processed signal back from an external effects processor.

4. ຕັ້ງຄ່າ

Follow these steps to set up your Behringer UB802 mixer for operation.

1. ການເຊື່ອມຕໍ່ພະລັງງານ: Ensure the mixer is switched off. Connect the supplied power adapter to the AC POWER IN on the rear panel and then plug it into a suitable power outlet.
2. ການເຊື່ອມຕໍ່ໄມໂຄຣໂຟນ/ເຄື່ອງດົນຕີ:
   • For microphones, connect XLR cables to the MIC ໃນ jacks (Channels 1-2). If using condenser microphones, activate the PHANTOM POWER (+48V) ສະຫຼັບ.
   • For line-level instruments (e.g., keyboards, guitars with preamps), connect 1/4" TS or TRS cables to the ເສັ້ນເຂົ້າ jacks. Use Channels 3/4 or 5/6 for stereo sources.
3. ການເຊື່ອມຕໍ່ຂາອອກ: ເຊື່ອມ​ຕໍ່ MAIN OUT (L/R) jacks ກັບຂອງທ່ານ amplifier, powered speakers, or audio interface using 1/4" TRS cables.
4. ການຕິດຕາມ: ເຊື່ອມຕໍ່ຫູຟັງຂອງທ່ານກັບ ໂທລະສັບ jack or control room monitors to the ຫ້ອງຄວບຄຸມອອກ jacks.
5. External Effects (Optional): If using an external effects processor, connect the ສົ່ງ FX jack to the input of your effects unit. Then, connect the output of your effects unit to the ສົ່ງຄືນ AUX jack on the mixer.
6. Recording/Playback Devices (Optional): ເຊື່ອມ​ຕໍ່ 2-TRACK OUT to the input of your recording device and the output of your playback device to the 2-TRACK IN.

5. ການເຮັດວຽກຂອງ Mixer

This section provides guidance on operating your Behringer UB802 mixer.

1. ລໍາດັບເປີດ: Turn on your mixer first, then your amplifier or powered speakers. When powering off, reverse the sequence (amplifier off first, then mixer) to prevent loud thumps.
2. Setting Gain Levels: For each active channel, speak or play into the microphone/instrument at its loudest expected level. Slowly turn up the ໄດ້ຮັບ ຄວບຄຸມຈົນກ່ວາ ຄລິບ LED briefly flashes. Then, back off the GAIN slightly so the CLIP LED no longer illuminates. This ensures optimal signal-to-noise ratio without distortion.
3. ການປັບລະດັບຊ່ອງ: ຕັ້ງຊ່ອງທັງໝົດ ລະດັບ knobs to their minimum position. Slowly bring up the LEVEL knob for each channel to achieve a balanced mix.
4. Using the EQ: ໃຊ້ ສູງ, ກາງ, ແລະ ຕໍ່າ controls to shape the tone of each input. Turning a knob clockwise boosts the frequency, while turning it counter-clockwise cuts it. Start with all EQ knobs at the center (0 dB) position.
5. Panning/Balancing: ໃຊ້ ແພນ knob for mono channels (1-2) to position them in the stereo field. Use the BAL knob for stereo channels (3/4, 5/6) to adjust the left/right balance.
6. Applying Effects (FX Send): ເຮັດໃຫ້ເຖິງ FX ສົ່ງ knob on the desired channel to send its signal to the external effects processor. Adjust the effect unit's wet/dry mix and the ສົ່ງຄືນ AUX level on the mixer to blend the effect into the main mix.
7. Main Mix Level: ປັບ MIX ຫຼັກ knob to control the overall output volume. Monitor the ລະດັບແມັດ to ensure the main mix is not clipping.
8. ການຕິດຕາມ: ໃຊ້ CONTROL ROOM/PHONES knob to adjust the listening volume for your headphones or control room monitors.

6. ບໍາລຸງຮັກສາ

ການບຳລຸງຮັກສາທີ່ເໝາະສົມຮັບປະກັນອາຍຸການໃຊ້ງານທີ່ຍາວນານ ແລະ ປະສິດທິພາບທີ່ດີທີ່ສຸດຂອງເຄື່ອງປະສົມຂອງທ່ານ.

• ທໍາຄວາມສະອາດ: Disconnect the power before cleaning. Use a soft, dry, lint-free cloth to wipe the surface of the mixer. Avoid using abrasive cleaners, solvents, or waxes, as these can damage the finish and controls.
• ການເກັບຮັກສາ: When not in use for extended periods, store the mixer in a cool, dry place, away from direct sunlight and extreme temperatures. Consider using a dust cover.
• ການຕັດການເຊື່ອມຕໍ່ໄຟຟ້າ: Always disconnect the power adapter from the wall outlet if the unit will not be used for a long time.

7. ການແກ້ໄຂບັນຫາ

If you encounter issues with your Behringer UB802, refer to the following common problems and solutions.

• ບໍ່ມີພະລັງງານ:
  • ໃຫ້ແນ່ໃຈວ່າອະແດບເຕີໄຟຟ້າໄດ້ເຊື່ອມຕໍ່ກັບທັງເຄື່ອງປະສົມ ແລະ ປລັກໄຟທີ່ໃຊ້ງານໄດ້ຢ່າງແໜ້ນໜາແລ້ວ.
  • ກວດສອບເບິ່ງວ່າປລັກສຽບໄຟເປີດໃຊ້ງານຢູ່.
  • Check if the correct power adapter is being used (only the one supplied by Behringer).
• ບໍ່ມີສຽງອອກ:
  • Check all cable connections from input sources to the mixer, and from the mixer's outputs to your amplifier / ລໍາໂພງ.
  • Ensure channel ລະດັບ knobs and the MIX ຫຼັກ knob are turned up.
  • ກວດ​ສອບ​ວ່າ​ ໄດ້ຮັບ controls are set appropriately and the ຄລິບ LED is not constantly lit.
  • If using condenser microphones, ensure PHANTOM POWER (+48V) ຖືກເປີດໃຊ້.
  • Check the volume levels on your amplifier ຫຼືລໍາໂພງພະລັງງານ.
• ສຽງບິດເບືອນ:
  • ຫຼຸດ​ຜ່ອນ ໄດ້ຮັບ control for the offending channel if the ຄລິບ LED is frequently flashing.
  • Lower the channel ລະດັບ or MIX ຫຼັກ ລະດັບ.
  • ກວດສອບແຫຼ່ງທີ່ມາຂອງສັນຍານວ່າມີການບິດເບືອນຫຼືບໍ່ກ່ອນທີ່ມັນຈະໄປເຖິງເຄື່ອງປະສົມສຽງ.
• Hum ຫຼື Noise:
  • Ensure all audio cables are properly shielded and in good condition.
  • Try to isolate the mixer's power supply from other noisy electrical devices.
  • Check for ground loops by ensuring all equipment is connected to the same power circuit or using a ground loop isolator if necessary.

8. ຂໍ້ມູນຈໍາເພາະ

Technical specifications for the Behringer UB802 mixer.

9. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ

ສໍາລັບຂໍ້ມູນການຮັບປະກັນລາຍລະອຽດ ແລະການຊ່ວຍເຫຼືອດ້ານວິຊາການ, ກະລຸນາອ້າງອີງເຖິງ Behringer ຢ່າງເປັນທາງການ webເວັບໄຊ ຫຼືຕິດຕໍ່ບໍລິການລູກຄ້າຂອງເຂົາເຈົ້າໂດຍກົງ. ຮັກສາໃບຮັບເງິນການຊື້ຂອງທ່ານໄວ້ເປັນຫຼັກຖານການຊື້ສໍາລັບການຮຽກຮ້ອງການຮັບປະກັນໃດໆ.

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