Utangulizi
The Neumann U 87 Ai is a large-diaphragm condenser microphone, recognized as an industry standard for professional audio recording. This microphone features three selectable polar patterns, a switchable high-pass filter, and a 10dB pre-attenuation pad, making it versatile for various recording applications. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your U 87 Ai microphone.
Taarifa Muhimu za Usalama
- Always handle the microphone with care to prevent damage to the sensitive capsule.
- Ensure the microphone is securely mounted on a stand using the provided shockmount to avoid accidental drops.
- The U 87 Ai requires 48V phantom power. Connect it only to equipment that provides standard phantom power.
- Epuka kuweka maikrofoni kwenye halijoto kali, unyevunyevu mwingi, au unyevunyevu wa moja kwa moja.
- Do not attempt to open or service the microphone yourself. Refer all servicing to qualified personnel.
- Weka maikrofoni mbali na sehemu zenye nguvu za sumaku.
Yaliyomo kwenye Kifurushi
Thibitisha kuwa vipengee vyote vipo kwenye kifurushi chako:
- Neumann U 87 Ai Studio Microphone
- EA87 Shockmount
- Kioo cha upepo
- Cable ya XLR
- Wooden Jeweler's Box
Image: The Neumann U 87 Ai microphone resting securely within its custom-fitted wooden storage box, indicating careful packaging.
Sanidi
1. Kufungua
Carefully remove the microphone and its accessories from the wooden box. Inspect all components for any signs of damage.
2. Kuweka Maikrofoni
Attach the EA87 shockmount to a suitable microphone stand. Gently insert the U 87 Ai microphone into the shockmount, ensuring it is held firmly but without excessive force. The shockmount helps to isolate the microphone from vibrations transmitted through the stand.
3. Kuunganisha Maikrofoni
Connect the provided XLR cable to the 3-pin XLR connector at the base of the microphone. Connect the other end of the XLR cable to a microphone preamplifier, audio interface, or mixing console that supplies 48V phantom power. Ensure phantom power is turned off on your device before connecting or disconnecting the microphone to prevent potential damage.
Kuendesha Maikrofoni
1. Polar Patterns
The U 87 Ai offers three selectable polar patterns: omnidirectional, cardioid, and figure-8. These patterns determine the microphone's sensitivity to sound from different directions.
- Uhamasishaji: Picks up sound equally from all directions. Ideal for capturing room ambiance or multiple sources.
- Ugonjwa wa Moyo: Most sensitive to sound from the front, with significant rejection from the rear. Suitable for vocals and isolating individual instruments.
- Kielelezo-8: Equally sensitive to sound from the front and rear, with rejection from the sides. Useful for recording two vocalists facing each other or for M/S stereo techniques.
The polar pattern switch is located on the front of the microphone body, below the grille.
Picha: Maelezo ya kina view of the polar pattern switch on the microphone body, showing the symbols for omnidirectional, cardioid, and figure-8 patterns.
2. Pre-attenuation Pad (-10dB)
The U 87 Ai features a switchable -10dB pre-attenuation pad. This pad reduces the microphone's output level by 10 decibels, preventing distortion when recording very loud sound sources, such as close-miked drums or guitar amplifiers. Engage this switch when the input signal is too hot for your preampmaisha zaidi.
Image: A close-up of the -10dB pad switch, clearly labeled, on the side of the microphone body.
3. Low-Frequency Roll-off
A switchable low-frequency roll-off (high-pass filter) is integrated into the U 87 Ai. This filter attenuates frequencies below approximately 100 Hz, which can be useful for reducing unwanted rumble, handling noise, or proximity effect when close-miking. The switch for the low-frequency roll-off is typically located near the polar pattern and pad switches.
4. Uwekaji Bora
Microphone placement significantly impacts the recorded sound. Experiment with distance and angle relative to the sound source to achieve the desired tonal balance and minimize unwanted room reflections. For vocals, a pop filter is recommended to reduce plosives.
Matengenezo na Utunzaji
- Kusafisha: Use a soft, dry cloth to wipe the microphone body. Do not use liquid cleaners or solvents, as they can damage the finish or internal components.
- Hifadhi: When not in use, store the microphone in its original wooden box or a protective case to shield it from dust, moisture, and physical impact.
- Kushughulikia: Avoid dropping or subjecting the microphone to harsh impacts. The capsule is a delicate component.
- Mazingira: Operate and store the microphone in a clean, dry environment with stable temperature and humidity.
Kutatua matatizo
- Hakuna Sauti:
- Ensure 48V phantom power is enabled on your preampkiolesura cha lifier au sauti.
- Angalia miunganisho yote ya kebo ya XLR kwa ajili ya viti vinavyofaa.
- Jaribu kwa kutumia kebo tofauti ya XLR.
- Verify that the input gain on your preamplifier is set appropriately.
- Sauti Iliyopotoka:
- If recording loud sources, engage the -10dB pre-attenuation pad on the microphone.
- Reduce the input gain on your preampmaisha zaidi.
- Hakikisha maikrofoni haijazidiwa na vyanzo vya sauti kubwa kupita kiasi.
- Besi/Rumble Kupita Kiasi:
- Engage the low-frequency roll-off switch on the microphone.
- Increase the distance between the microphone and the sound source to reduce proximity effect.
- Intermittent Sound/Noise:
- Check for faulty cables or connectors.
- Hakikisha vifaa vyote vya sauti vimewekewa msingi unaofaa.
- Verify that the microphone is not picking up electrical interference from other devices.
Vipimo vya Kiufundi
| Vipimo | Thamani |
|---|---|
| Uzito wa Kipengee | Pauni 1.1 (Gramu 500) |
| Impedans | 200 ohm |
| Kipengele cha Fomu ya Maikrofoni | Maikrofoni Pekee |
| Chanzo cha Nguvu | Nguvu ya Phantom (48V) |
| Signal-kwa-kelele uwiano | 82 dB |
| Idadi ya Vituo | 1 |
| Majibu ya Mara kwa mara | 20 Hz - 20 kHz |
| Mtengenezaji | Neumann |
| UPC | 615104070226 |
| Nambari ya mfano wa bidhaa | U 87 Ai |
| Jina la Rangi | Nickel |
| Percussion Diameter | Milimita 56 |
| Matumizi Yanayopendekezwa Kwa Bidhaa | Singing, Instrument Recording |
| Teknolojia ya Uunganisho | XLR |
| Aina ya kiunganishi | XLR |
| Vifaa Sambamba | Audio Interface, Mixing Console, Digital Recorder |
| Vipengee vilivyojumuishwa | EA87 Shockmount, Windscreen, Cable, Wooden Jeweler's Box |
| Muundo wa Polar | Multipattern (Omnidirectional, Cardioid, Figure-8) |
| Vifaa vya Sensitivity | 127 decibels |
Udhamini na Msaada
The Neumann U 87 Ai microphone is covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official Neumann website. For technical support, service, or replacement parts, please contact an authorized Neumann service center or your dealer.
Unaweza kupata habari zaidi na rasilimali za usaidizi kwenye Neumann Store on Amazon.
Taarifa za Utupaji
Do not dispose of this product with household waste. Electronic equipment contains materials that can be harmful to the environment if not disposed of properly. Please consult your local authorities for information on proper disposal and recycling options for electronic devices.
