Audio-Technica PRO44

Unidirectional Boundary Microphone with 25' Cable
Audio-Technica PRO44 image 1
Audio-Technica PRO44 image 1
$99.00
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Audio-Technica PRO44
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A half-cardioid boundary mic from AT!

The PRO 44 is a wide-range condenser microphone with a hemi-cardioid (half-space cardioid) polar pattern. It was designed for surface-mounted applications in high-quality sound reinforcement and other demanding sound pickup situations. Its low-profile design makes the PRO 44 ideal for use in applications where minimum visibility is required. A 25' (7.6 m) cable with TA3F and XLRM-type connectors is provided for use between the microphone and electronics input. The PRO 44 is great for any number of applications.

Audio-Technica PRO44 at a Glance:
  • Fixed-charged back plate construction
  • Easy to position
  • Rugged design

Fixed-charged back plate construction
Audio-Technica design engineers have utilized the newest low-mass technology in the quest for superior performance. The charge is now on the fixed back plate, rather than the moving element. With the A-T fixed-charge "back plate" construction, a gold-vaporized diaphragm just2 microns thick (about 0.000079") can be used. This reduces moving mass substantially, improving frequency response and transient response while reducing distortion.

Easy to position
Positioning a properly designed miniature unidirectional microphone centrally on a large, flat, unobstructed surface yields several distinct advantages. Directionality is increased by 3 dB, promoting enhanced gain before feedback and further suppression of ambient noise. Sensitivity is increased for improved signal-to-noise ratio. Phase distortion due to reflected sound energy from the boundary itself is eliminated.

Rugged design
The microphone element is enclosed in a rugged housing with a black finish. The rubber non-slip bottom pad minimizes mechanical coupling of surface vibrations to the microphone. The high sensitivity of the PRO 44 ensures useful output and an excellent match to most mixer, tape recorder and amplifier inputs. It will provide undistorted output even in sound fields as loud as 114 dB SPL.

Audio-Technica PRO44 Features:
  • Low profile for minimum visibility
  • Wide-range condenser element with low-mass diaphragm for superior performance
  • Self-contained electronics eliminate need for external power modules
  • Rugged design and construction
  • 25' (7.6 m) detachable cable (TA3F to XLRM-type)
  • Element: Fixed-charge back plate, permanently polarized condenser
  • Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
  • Frequency Response: 70-16,000 Hz
  • Open Circuit Sensitivity: -25 dB (56.2 mV) re 1V at 1 Pa
  • Impedance 100 ohms
  • Maximum Input Sound Level: 114 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range (typical): 86 dB, 1 kHz at Max SPL
  • Phantom Power Requirements: 9-52V, 2 mA typical
  • Weight: 2.4 oz
Audio-Technica PRO 44 - A low-profile boundary mic for countless applications!

Additional Media

Studio Microphone Buying Guide

Tech Specs

Microphone Type Boundary
Polar Pattern Half-Cardioid
Frequency Response 70Hz-16kHz
Max SPL 114dB
Output Impedance 100 ohms
Signal to Noise Ratio 66dB
Color Black
Cable Length 25 ft.
Connector 3-pin Mini XLR
Weight 0.2 lbs.
Included Accessories 25' TA3F to XLRM Cable
Manufacturer Part Number PRO44

Customer Reviews

4/5
Based on 5 reviews
Write your review
4.5/5

AT PRO44

I bought these for use at a local political forum. The candidates had all been used to either the pass-around SM58 or a couple on stands they had to move to. When they saw these on the table, they were at first nervous and confused that the audience would not hear them. One asked what I would do if he picked it up and spoke directly into it - I told the first response would be to turn it off . . . At the end of the forum, the candidates and audience and those who produced the event all agreed that this was the best sound yet. There will be a stage show coming up soon where ZI have used 5 mics on stands across the front - this time it will be the AT PRO44s. I anticipate a fine sound with a much cleaner sight line. I am happy!
Music background: Pro Musician, Mobile Recording Engineer
4.5/5

Almost Perfect !!

Only reason this awesome mic did not get the 5 stars is because Audio-Technica fails to ship some mounting screws or plate with the mic. Other than that an excellent boundary mic. we use it to pick up the different speakers tones and volume of voices in our church. Great item for a great price
Music background: Sound room head
4/5

Pleasant surprise

surprised by this mic. I used 4 of them across a 40 foot stage that I thought I could never use this type of mic on ( very bad speaker placement.) They worked very well. The gain before feedback was great and sensitivity was better than expected. The small footprint made it easy to overlook them from the house,but also easy to step on or kicked out of place ( a little gaff took care of that).
Music background: tech director community theater and pro TV studio eng.
4/5

Works well at the altar

This mic has fit the bill perfectly for unobtrusive sound reinforcement at the high altar of our church. It replaced a high quality AT handheld condenser that was OK but visually obtrusive among the other elements in the altar setting. While we were shooting for "better looking and good enough," we actually wound up getting zero-profile and a better sound. The sound is fundamentally open and smooth, and because of the boundary mic placement (waist high, on-axis, maybe 3' distance) there is no risk of sibilance or proximity effect. It is a real plus for the people at the altar to be able to just forget about microphone technique. Final note, before getting this model, we tried (twice!) a slightly cheaper boundary mic from another manufacturer, with bad results. In fact the results were so bad that I suspect they were having a manufacuring problem, so perhaps not a fair comparison. In any event this AT mic has much better fit and finish for not a lot more money.
Music background: Engaged amateur, 30 years running
2.5/5

Good but not Great

It was better then attempting to individually wire eighteen individuals but it didn't work as well as I thought it would. To be fair, it may have been how I set them up. Didn't have the range I thought it would.
Music background: Live Recording Tech.
See also: Condenser Mics, Audio-Technica, Audio-Technica Condenser Microphones, Audio-Technica Condenser Microphones