Shure CVO-B/C Overhead Condenser Microphones User Guide
- June 13, 2024
- Shure
Table of Contents
Shure CVO-B/C Overhead Condenser Microphones
The Centraverse CVO is a professional low pro-file electret condenser microphone designed for overhead sound reinforcement applications. An in- tegrated wire aiming hanger is included for optimal placement above choirs and other ensembles with minimal effort.
Features
- Cardioid pickup pattern
- Commshield® technology guards against unwanted RF interference from portable wireless devices (smartphones, etc.)
- Superior Shure design and rugged, dependable construction
- Attached 25 ft XLR cable
- Included snap-fit windscreen
Model Variations
- CVO-B/C: Cardioid, black
- CVO-W/C: Cardioid, white
Note: Model availability depends on region. See your local Shure dealer or distributor for details.
Installation
- Attach the wire hanger:
- Snap the wire into the groove on the microphone body.
- Guide the cable through the spiral at the end of the wire, beginning at the bottom and working toward the exit.
- Hang the microphone according to the guidelines for placement.
- Aim the microphone toward the sound source by holding the wire hanger in place and twisting the microphone body.
- If necessary, tie a strong transparent thread or fishing line to the loop at the end of the wire hanger and attach it to a ceiling anchor for additional stability.
- Connect the XLR cable to a mixer or P.A. system.
Note: This microphone requires +48V phantom power to operate.
Microphone Placement and Use
- 3:1 Rule: If using multiple Shure Centraverse overhead micro-phones, the distance between the microphones should be three times greater than the distance between the microphone and the sound source.
- Choir Installations: Place the microphone in front of the choir, above their heads and aimed at the back row.
- Windscreen: Use the supplied snap-fit windscreen to eliminate wind noise and plosives. To install the windsreen, snap it into the first groove on the microphone head. To remove the windscreen, locate the gap in the ring and use your fingernail to pull the windscreen off from the right-hand side.
Specifications
- Cartridge Type Electret Condenser
- Polar Pattern Cardioid
- Frequency Response 70–16000 Hz
- Output Impedance 180 Ω
- Sensitivity open circuit voltage, @ 1 kHz, typical –33 dBV/Pa[1] (22 mV)
- Maximum SPL[2] 1 kHz at 1% THD 120 dB SPL
- Signal-to-Noise Ratio[3] Ref. 94 dB SPL at 1 kHz 67 dB
- Dynamic Range 93 dB
- Self Noise equivalent SPL, A-weighted, typical 27 dB SPL
- Preamplifier Output Clipping Level @ 1 kHz, at 1% THD -7 dBV
- Common Mode Rejection 10 Hz to 100 kHz >45 dB
- Polarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
- Environmental Conditions****
Operating Temperature| –18 to 57°C (0 to 135°F)
---|---
Storage Temperature| –29 to 74°C
(–20 to 165°F)
Relative Humidity| 0 to 95%
- Power Requirements 11–52 V DC[4], 2.0 mA
- Weight 4.7 oz. (133 g)
- 1 Pa=94 dB SPL
- THD of microphone preamplifier when applied input signal level is equivalent to cartridge output at specified SPL
- S/N ratio is the difference between 94 dB SPL and equivalent SPL of self noise, A-weighted
- All specifications measured with a 48 Vdc phantom power supply. The microphone operates at lower voltages, but with slightly decreased headroom and sensitivity.
Accessories
Furnished Accessories
- Wire aiming hanger (Black) 44A16928
- Wire aiming hanger (White) 44B16928
- Windscreen (Black) 95A20541
- Windscreen (White) 95B20541
Optional Accessories
- Windscreen (Black, 4-pack) ACVO4WS-B
- Windscreen (White, 4-pack) ACVO4WS-W
DIMENSIONS
Certifications
- Meets essential requirements of all applicable European Directives.
- Eligible for CE marking.
- The CE Declaration of Conformity can be obtained from Shure Incorporated or any of its European representatives. For contact information please visit www.shure.com
The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance
Authorized European representative: Shure Europe GmbH
Headquarters Europe, Middle East & Africa Department: EMEA Approval
Jakob-Dieffenbacher-Str. 12 75031 Eppingen, Germany
- Phone: 49-7262-92 49 0
- Fax: 49-7262-92 49 11 4
- Email: EMEAsupport@shure.de
SHURE Incorporated http://www.shure.com
United States, Canada, Latin America, Caribbean: 5800 W. Touhy Avenue, Niles, IL 60714-4608, U.S.A.
- Phone: 847-600-2000
- U.S. Fax: 847-600-1212
- Int’l Fax: 847-600-6446
Europe, Middle East, Africa: Shure Europe GmbH,
- Phone: 49-7262-92490
- Fax: 49-7262-9249114
Asia, Pacific: Shure Asia Limited,
- Phone: 852-2893-4290
- Fax: 852-2893-4055
TROUBLESHOOTING
No Sound or Low Sound Output:
- Check the microphone connection: Ensure the microphone is firmly connected to your mixer or audio interface. Confirm that the connectors are properly inserted.
- Phantom power: If your CVO-B/C requires phantom power, make sure it’s activated on your mixer or audio interface.
- Cable inspection: Examine your microphone cable for damage. Test with a different cable to see if the issue persists.
- Microphone capsule: Inspect the microphone capsule for any visible damage or foreign particles. Gently clean it if necessary.
- Polar pattern: Verify that the microphone’s polar pattern setting matches your recording or performance needs (e.g., cardioid, omnidirectional).
Excessive Noise or Interference:
- Identify interference sources: Locate and eliminate potential interference sources like nearby electronic devices, fluorescent lights, or Wi-Fi routers.
- Cable quality: Use high-quality shielded microphone cables to minimize interference.
- Grounding: Ensure proper grounding of your audio equipment and venue to reduce noise.
Popping Sounds or Distortion:
- Use a pop filter: Prevent popping sounds and distortion by using a pop filter or windscreen in front of the microphone.
- Adjust input gain: Lower the input gain on your mixer or audio interface if the microphone distorts due to high input levels.
Uneven or Muffled Sound:
- Microphone placement: Adjust the microphone’s positioning to capture sound evenly. Experiment with angles and distances.
- Capsule cleanliness: Ensure the microphone capsule is clean and free from dust or debris that might affect sound quality.
Feedback Issues:
- Monitor placement: Properly position stage monitors and loudspeakers to avoid feedback loops. Consider using in-ear monitors if possible.
- Equalization: Apply suitable equalization to mitigate feedback frequencies without compromising sound quality.
Microphone Not Detecting Sound:
- Verify connections: Confirm that all connections, including cables and connectors, are secure.
- Phantom power: Ensure that the microphone receives phantom power if it’s required.
Inconsistent Sound Quality:
- Check environmental factors: Recognize that factors like room acoustics and ambient noise can influence sound quality. Adjust settings or use acoustic treatment as needed.
Signal Dropouts:
- Cable integrity: Check the microphone cable for physical damage or kinks that may lead to signal dropouts.
Mic Stand Stability:
- Ensure the microphone stand is stable and securely tightened to prevent microphone movement during recording or performance.
FREQUENTLY ASKED QUESTIONS
What is the Shure CVO-B/C Overhead Condenser Microphone used for?
The Shure CVO-B/C is designed for capturing audio in overhead positions, typically in choir or instrumental recording settings.
What is the difference between the CVO-B and CVO-C models?
The CVO-B has a black finish, while the CVO-C has a white finish. Otherwise, their specifications are identical.
What type of microphone is the Shure CVO-B/C?
It is a condenser microphone, specifically designed for overhead applications.
What is the pickup pattern of the CVO-B/C microphone?
The CVO-B/C features a cardioid pickup pattern, which is ideal for isolating sound sources in front of the microphone.
What is the frequency response of the Shure CVO-B/C microphone?
The frequency response ranges from 70 Hz to 16 kHz, making it suitable for capturing a wide range of audio frequencies.
Does the microphone require phantom power?
Yes, the CVO-B/C requires +48V phantom power for operation.
Can I use the Shure CVO-B/C microphone with a wireless system?
Yes, you can use the microphone with a compatible wireless transmitter, provided it has the necessary power and connectivity.
Is the CVO-B/C microphone suitable for outdoor use?
While it can be used outdoors, it is best suited for indoor applications due to its sensitive condenser element.
How do I mount the CVO-B/C microphone?
The microphone comes with an integrated flange for mounting on a surface, and it can also be attached to a standard microphone stand using the included adapter.
Can I adjust the angle of the microphone when mounted overhead?
Yes, the CVO-B/C allows you to adjust the angle of the microphone to capture sound from different angles.
What is the maximum sound pressure level (SPL) the microphone can handle?
The CVO-B/C can handle a maximum SPL of 130 dB, making it suitable for loud sound sources.
Can I connect the CVO-B/C directly to a computer for recording?
You will need an audio interface or mixer with phantom power to connect the microphone to a computer.
Is the microphone suitable for recording vocals?
While it is primarily designed for overhead applications, you can use it for recording vocals in specific situations.
What is the recommended distance between the microphone and the sound source?
A common starting point is to position the microphone 2-3 feet (60-90 cm) above the sound source.
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