Shure A15RF In-Line XLR RF Attenuator

Shure A15RF In-Line 3-Pin XLR Radio Frequency Attenuator

Shure A15RF In-Line 3-Pin XLR Radio Frequency Attenuator

B&H # SHA15RF MFR # A15RF
Shure A15RF In-Line XLR RF Attenuator

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  • 1Description

The Shure A15RF is an in-line 3-Pin XLR filter which attenuates extraneous radio frequency interference from balanced audio circuits.

RFI Attenuation
Common/Differential Mode Attenuation: 50 Ohms In/Out
Maximum Operating DC Current Rating
20 mA maximum for each balanced signal line
DC Impedance
0.4 Ohm
Operating Temperature Range
-40° to 185° F (-40° to +85° C)
UPC: 042406088855
In the Box
Shure A15RF In-Line 3-Pin XLR Radio Frequency Attenuator
  • 2-Year Warranty
  • Table of Contents
    • 1Description
    Packaging Info
    Package Weight 0.25 lb
    Box Dimensions (LxWxH) 4.7 x 3.4 x 2.3"
    A15RF In-Line XLR RF Attenuator is rated 5.0 out of 5 by 6.
    Rated 5 out of 5 by from Great in a Difficult Situation Had 2 ambient mics mounted high in a church. They were only being used for recording - and they were picking up an AM radio station with crystal clarity (770 AM - News Talk Radio 77 to be exact). Only the church didn't want the radio station in the recording ... I installed 1 at each microphone and the radio station went away. They worked like a charm. I tried installing them downstairs at the sound system console - they did not work. I tried installing 2 in series at the console - that didn't work either. You have to install them at the microphone location (usually up high where the radio station is being picked up) - but they work really well. I recommend them highly.
    Date published: 2011-03-17
    Rated 5 out of 5 by from A solution This works. I had a pronounced RF signal coming through when using both my AKG and EV condensor mics. Tried everything else including magnetic clips on the wires. Inserted this between the connections and the noise is gone. Nice.
    Date published: 2008-09-29
    Rated 5 out of 5 by from Wonderful success I occasionally set up sound in a venue where RF is awful...destroys the whole mix. I decided to try one of these with a Behringer B-5 for an orchestra area that turns into a radio station without it! With it, the sound is back to orchestra! The product works. I placed it at the mic end.
    Date published: 2016-05-02
    Rated 5 out of 5 by from RF Eliminator for Choir Mics These do a great job of eliminating RF interference picked up by the unbalanced cables between the pre-amp module and the condenser mic typical of hanging choir mics and some podium mics. Use right at the preamp module, not at the mixer for best results.
    Date published: 2015-12-21
    Rated 5 out of 5 by from Just the Trick! Excellent suppression of RF noise. Plugged the filter into the gooseneck microphone and into the mic base and the cell phone noise ceased. Placed a few more downstream as well. What a difference!
    Date published: 2012-01-24
    Rated 5 out of 5 by from Worked when everything else failed We tried all the other fixes & nothing worked. These worked great on our Church Choir Mics.
    Date published: 2011-12-12
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