1. ບົດແນະນຳ
The Universal Audio LA-610 MKII is a classic tube recording channel strip, combining a vintage 610 tube microphone preamplifier, a full-featured EQ, and a T4 optical compressor. This unit is designed to provide a warm, rich, and musical sound for a variety of recording applications, from vocals and instruments to entire mixes. This manual provides essential information for the proper setup, operation, and maintenance of your LA-610 MKII.
2. ຂໍ້ມູນຄວາມປອດໄພ
Please read and understand all safety instructions before operating the LA-610 MKII. Retain this manual for future reference.
- ອັນຕະລາຍຈາກໄຟຟ້າຊ໊ອດ: To reduce the risk of electric shock, do not open the unit. Refer all servicing to qualified service personnel.
- ຄຳເຕືອນຄວາມຊຸ່ມ: Do not expose this apparatus to rain or moisture to reduce the risk of fire or electric shock.
- ການລະບາຍອາກາດ: Ensure adequate ventilation around the unit. Do not block any ventilation openings. The unit generates heat during operation; proper airflow prevents overheating and ensures optimal performance and longevity.
- ແຫຼ່ງພະລັງງານ: Connect the unit only to a power supply of the type specified in this manual and on the unit itself.
3. ຜະລິດຕະພັນເກີນview
3.1 ແຜງຄວບຄຸມດ້ານໜ້າ
The front panel of the LA-610 MKII provides access to all primary controls for the preamp, EQ, and compressor sections.
ຮູບພາບ: ທາງຫນ້າ view of the LA-610 MKII, displaying the preamp, EQ, and compressor controls, along with the VU meter and power switch.
- ໄດ້ຮັບ: Adjusts the input gain for the preamplifier. Selectable values include -10, -5, 0, +5, and +10 dB.
- ລະດັບ: Controls the output level of the 610 tube preampພາກສ່ວນຊີວິດ.
- ຄວາມເຂັ້ມແຂງການນໍາເຂົ້າ: Selects the input impedance for the microphone (500Ω, 2KΩ) and Hi-Z (47KΩ, 2.2MΩ) inputs. Matching impedance can affect tone.
- ພະລັງງານ +48V PHANTOM: ປະກອບພະລັງງານ +48V phantom ສໍາລັບໄມໂຄໂຟນ condenser.
- -15dB PAD: Attenuates the input signal by 15dB, useful for high-level sources.
- ໄລຍະ: ປ່ຽນໄລຍະຂອງສັນຍານເຂົ້າ.
- EQ HIGH: A shelving equalizer for high frequencies, with selectable frequencies (7KHz, 4.5KHz, 10KHz) and a boost/cut range of +/- 9dB.
- EQ ຕໍ່າ: A shelving equalizer for low frequencies, with selectable frequencies (70Hz, 100Hz, 200Hz) and a boost/cut range of +/- 9dB.
- ຫຼຸດສູງສຸດ: Controls the amount of gain reduction applied by the optical compressor.
- GAIN (Compressor): Provides makeup gain to compensate for gain reduction from the compressor.
- ແມັດ: ເລືອກສິ່ງທີ່ເຄື່ອງວັດ VU ສະແດງ: GR (Gain Reduction), ຄອມ (Compressor Output Level), or ຈຳ ກັດ (Limiter Output Level).
- ແບບ: ສະຫຼັບລະຫວ່າງ ບີບອັດ ແລະ ຈຳ ກັດ modes for the optical compressor.
- ພະລັງງານ: Main power switch for the unit, with an integrated indicator light.
- VU meter: Displays the selected level or gain reduction, providing visual feedback on signal dynamics.
3.2 ການເຊື່ອມຕໍ່ແຜງດ້ານຫລັງ
The rear panel houses all input and output connections, as well as the power inlet.
ຮູບພາບ: ດ້ານຫລັງ view of the LA-610 MKII, showing the IEC power inlet, balanced XLR Line Output, Line Input, and Mic Input connectors.
- ກຳລັງຢູ່ໃນ: Standard IEC power inlet for connecting the AC power cord. The unit accepts 90-240VAC, 0.30A, 50/60Hz.
- ສາຍອອກ: Balanced XLR output for connecting to an audio interface, mixer, or other line-level equipment.
- ການປ້ອນຂໍ້ມູນເສັ້ນ: Balanced XLR input for processing line-level signals through the unit.
- ການປ້ອນຂໍ້ມູນ MIC: Balanced XLR input specifically for connecting microphones.
4. ຕັ້ງຄ່າ
Follow these steps to set up your LA-610 MKII for operation:
- ການຫຸ້ມຫໍ່: Carefully remove the LA-610 MKII from its packaging. Inspect the unit for any signs of damage.
- ການຈັດວາງ: The LA-610 MKII is designed for rack mounting. Install it in a standard 19-inch equipment rack, ensuring sufficient space for ventilation, especially above the unit, as it generates heat.
- ການເຊື່ອມຕໍ່ພະລັງງານ: Connect the supplied IEC power cord to the POWER IN inlet on the rear panel and then to a grounded AC power outlet. Ensure the unit's power switch is in the OFF position before connecting.
- ການເຊື່ອມຕໍ່ສຽງ:
- ໄມໂຄຣໂຟນ: ເຊື່ອມຕໍ່ໄມໂຄຣໂຟນຂອງທ່ານກັບ ເຂົ້າຮ່ວມ MIC XLR connector on the rear panel.
- ການປ້ອນຂໍ້ມູນລະດັບແຖວ: For processing line-level signals, connect your source to the ເຂົ້າເສັ້ນ XLR connector on the rear panel.
- Hi-Z Instrument: For direct instrument input (e.g., guitar, bass), use the HI-Z input jack on the front panel.
- ຜົນຜະລິດ: ເຊື່ອມຕໍ່ ສາຍອອກ XLR connector on the rear panel to your audio interface, mixer, or recording device's input.
5. ຄໍາແນະນໍາການດໍາເນີນງານ
This section details the operation of the LA-610 MKII's various sections.
5.1 ການເປີດ/ປິດ
ກົດ ພະລັງງານ switch on the front panel to turn the unit ON. The indicator light will illuminate. Allow a few moments for the tubes to warm up before use. To power off, press the ພະລັງງານ ສະຫຼັບອີກຄັ້ງ.
ກ່ອນປີ 5.2amplifier Section (610 Tube Preamp)
- ການຄັດເລືອກການປ້ອນຂໍ້ມູນ: Ensure your input source is connected correctly (Mic, Line, or Hi-Z).
- ຮັບການຄວບຄຸມ: ໃຊ້ ໄດ້ຮັບ knob to set the initial input gain. Common settings for vocals might be around -5dB, but adjust based on your microphone and source level.
- ການຄວບຄຸມລະດັບ: ໄດ້ ລະດັບ knob fine-tunes the output level of the preamp ພາກ.
- impedance: ທົດລອງກັບ IMPEDANCE ປ້ອນຂໍ້ມູນ settings (500Ω, 2KΩ for mic; 47KΩ, 2.2MΩ for Hi-Z) to find the best tonal match for your microphone or instrument.
- ພະລັງງານ Phantom: ຖ້າຫາກວ່າການນໍາໃຊ້ໄມໂຄໂຟນ condenser, ການເຊື່ອມຕໍ່ ພະລັງງານ +48V PHANTOM switch. Ensure the microphone is connected before engaging phantom power.
- Pad & Phase: ໃຊ້ -15dB PAD for very loud sources to prevent clipping. The ໜ້າ switch can be used to correct phase issues between multiple microphones or to achieve creative effects.
5.3 ພາກສ່ວນ Equalizer
The LA-610 MKII features a simple yet effective two-band shelving EQ.
- EQ HIGH: Select a frequency (7KHz, 4.5KHz, 10KHz) and use the knob to boost or cut high frequencies. A slight boost at 7KHz can add presence to vocals.
- EQ ຕໍ່າ: Select a frequency (70Hz, 100Hz, 200Hz) and use the knob to boost or cut low frequencies. For many sources, leaving the LOW EQ at zero is a good starting point.
5.4 Compressor Section (T4 Optical Compressor)
The T4 optical compressor is known for its smooth and musical gain reduction.
- ການຫຼຸດລົງສູງສຸດ: This knob controls the threshold and ratio of the compressor. Turn it clockwise to increase compression.
- Gain (Compressor): Use this knob to add makeup gain after compression, bringing the signal back to an appropriate level.
- ໂໝດ: ເລືອກ ບີບອັດ for standard compression or ຈຳ ກັດ for a more aggressive limiting effect.
- ແມັດ: ກໍານົດ ແມັດ ສະຫຼັບໄປ GR to monitor gain reduction, or COMP/LIMIT to monitor the output level of the compressor/limiter.
6. ບໍາລຸງຮັກສາ
Proper maintenance ensures the longevity and optimal performance of your LA-610 MKII.
- ທໍາຄວາມສະອາດ: ໃຊ້ຜ້າປຽກແຫ້ງເພື່ອເຮັດຄວາມສະອາດດ້ານນອກຂອງເຄື່ອງ. ຫຼີກລ້ຽງການເຮັດຄວາມສະອາດຂັດຫຼືສານລະລາຍ.
- ການລະບາຍອາກາດ: Regularly check that the ventilation openings are clear of dust and obstructions.
- ການທົດແທນທໍ່: As a tube-based unit, the vacuum tubes will eventually need replacement. If you notice a degradation in sound quality, increased noise, or inconsistent performance, consult a qualified technician for tube testing and replacement. Use only recommended replacement tubes.
- ການເກັບຮັກສາ: If storing the unit for an extended period, ensure it is in a dry, temperature-controlled environment, protected from dust.
7. ການແກ້ໄຂບັນຫາ
If you encounter issues with your LA-610 MKII, try these basic troubleshooting steps:
- ບໍ່ມີພະລັງງານ: Ensure the power cord is securely connected to both the unit and a working AC outlet. Check the power switch position.
- ບໍ່ມີສຽງ:
- Verify all audio cables are correctly connected and functional.
- Check input and output levels on the LA-610 MKII and connected devices.
- Ensure the correct input source is selected (Mic, Line, Hi-Z).
- If using a condenser mic, confirm +48V phantom power is engaged.
- ສຽງບິດເບືອນ:
- ຫຼຸດຜ່ອນ ໄດ້ຮັບ ແລະ ລະດັບ ການຕັ້ງຄ່າກ່ອນamp.
- ມີສ່ວນຮ່ວມ -15dB PAD if the input signal is too hot.
- ກວດເບິ່ງສາຍເຄເບີ້ນທີ່ເສຍຫາຍ.
- Hum ຫຼື Noise:
- ໃຫ້ແນ່ໃຈວ່າອຸປະກອນທັງຫມົດຖືກຮາກຖານຢ່າງຖືກຕ້ອງ.
- Try different power outlets or a power conditioner.
- Check for proximity to other electronic devices that may cause interference.
- Faulty tubes can sometimes cause increased noise; consider professional inspection.
If problems persist after attempting these steps, contact Universal Audio customer support or a qualified service technician.
8. ຂໍ້ມູນຈໍາເພາະ
| ໝາຍເລກຕົວແບບ | LA610M2 |
| ນ້ໍາຫນັກລາຍການ | 12.97 ປອນ (5.88 ກິໂລ) |
| ຂະໜາດແພັກເກັດ | 22.01 x 17.52 x 7.01 ນິ້ວ (55.9 x 44.5 x 17.8 cm) |
| ຄວາມຕ້ອງການພະລັງງານ | 90-240VAC, 0.30A, 50/60Hz |
| ວັນທີທໍາອິດທີ່ມີ | ວັນທີ 9 ຕຸລາ 2008 |
9. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
Universal Audio products are manufactured to high standards and are backed by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Universal Audio website. For technical support, service, or further inquiries, please visit the Universal Audio support page or contact their customer service department directly.
Universal Audio Official Webເວັບໄຊ: www.uaudio.com
