Audix ADX51 Cardioid Condenser Instrument Microphone

The ADX51 is a professional pre-polarized condenser microphone used for stage, studio and broadcast applications. The ADX51 is known for its clear, accurate response and flexibility to handle close or distance miking for a wide variety of acoustic instruments.

Characterized with a uniformly controlled cardioid polar pattern, the ADX51 is designed to capture the acoustics of the instrument being miked while at the same time isolating it from the rest of the instruments on stage. With a wide frequency range of 40 Hz - 18 kHz, the ADX51 is equipped with an optional -10 dB pad and bass roll-off filter for added contour and control at the sound source.

The ADX51 is very easy to position, durable and manufactured with high standards and tight tolerances. Roadworthy construction includes a precision machined brass body, black e-coat finish, laser etched model and serial number, steel mesh grill, gold XLR connector and a tension-fit heavy duty nylon mic clip.

Features:

• Excellent multi-purpose instrument microphone
• Can be used for close or distance miking
• Machined brass housing
  
• -10 pad bass roll-off filter
  
• Roadworthy construction

Applications:

• Acoustic instruments
• Cymbals, drum overhead
• High-hat, percussion table
• Group vocal, speech
• Ambient room miking
• Audience mics for ear monitors

Supplied Accessories:

• Mic clip (Dclip) adjustable through 180 degrees with standard 5/8 inch. -27 thread. Note: Metal stand adapter also supplied to accommodate European standard threads.
• Vinyl carrying case.
• WS-81C External Foam Windscreen.

Operation and Maintenance:
Condenser microphones as a general rule are much more sensitive and reactive than dynamic microphones and should be handled with care. Avoid extreme temperatures wherever possible. Moisture and high humidity can adversely effect the performance of the microphone and cause permanent damage. For outdoor use, consider using the foam windscreen (WS-ADX51) to reduce wind noise or popping. When not in use, please store your

Recording:
The ADX51 can be used effectively to record just about any acoustic instrument. Because of the simple design and excellent transient response, simply point the microphone towards the sound source making sure the mic is far enough away to avoid distortion.

Live Sound:
When miking instruments, the ADX51 should generally not be closer than 6 inches to the sound source. In the case of group vocals, drum overheads, bells, and percussion toys, the microphone can be from 1-4 feet from the source. In general, when using multiple ADX51s for live sound, they should be spaced at a distance of at least 4-6 feet apart. Using fewer mics can result in a more ‘spatial’ effect and provides greater chance for greater control over feedback.

Pad and Roll-Off:
These recessed switches are located towards the bottom of the mic. You will need a either a miniature screw driver or a pen to move them down (engaged) or up (not engaged).

Pad:
The switch on the lower left side of the mic is a 10 dB pad. This means you can reduce the input level of the mic by 10 dB. This is very helpful for miking extremely loud instruments (guitars, drums, horns) that may tend to drive the mic into distortion. Note that 0 dB is in the up position and -10 dB is in the down position.

Bass Roll-Off:
This feature gently rolls off the bass frequencies starting at 150 Hz which is very helpful in reducing boominess for voice or instrument. Note that the feature is active when the switch is in the down position.

Output:
It is recommended to use a high quality microphone cable with 3 pin XLR connectors. The ADX51 output is balanced across Pin 2 (positive) with respect to Pin 3, with the shield connection is Pin 1.