Shure A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power

This was designed as a mic level device only. However, I tried it in a pinch to reduce wind (fan) noise picked up by a tiny condenser mic during a video shoot. The A15HP blocks phantom power, so I had to inserted into the line level feed that came out of the mixer. (Ouch.) The mics were all picking up normal speech frequencies - no deep bass other than the wind - so the tiny inductors in this HP filter were not overloaded noticeably, and the feed was cleaned up dramatically. As a bonus, it tightened the bottom of some SM-58 style cardioid dynamic mics that were being worked too close. For reference, the level into this Shure filter averaged around 1V RMS (way too high), but the load impedance was good - 50K (an FMR RNC1773 used to step on the camera feed.) This device performs beyond the call of duty when loaded very lightly, and that saved the situation. Would I normally recommend an A15HP for this application? Nope. Did it work amazingly well? Yup. Get one for your ENG / recording studio toolbox.

Works great, eliminates most interference

マイクレベルの入力しか受け付けない会場の音響装置にラインレベルの出力機器を接続する際に使用しています。 本体が長いので、XLRケーブルの中間に挟んで使いました。

This adapter is well constructed and works as expected. I was able to convert audio LINE signal our of my soundboard to MIC signal that goes into my camera for the purpose of live streaming.

though I did try the RF filter at a number of cable connections ( 3 cables) it worked best at the microphone to XLR cable connection so I don't have the local radio coming through our weekly church live=stream using hanging mics.