"Helps to eliminate live sound and recording hum headaches."
By a customer from hotmail.com, zzounds.com
15 February 2010
Excerpt: When comparing the HD400 to the Ebtech Hum eliminators, this one is the clear winner. The Ebtech cuts the audio signal volume and takes out the highs so badly that I would rather deal with the hum! This unit does a VERY good job at trying to ensure the the audio signal coming in is the same quality and tone as the processed audio signal going out.
Excerpt: Totally eliminated the hum...and my application is sort of non-standard. I haven't a CRT monitor and I do a lot of recording. Well these put out a very large EM field and will caused your pick-ups to pick up a lot of hum...this thing did the trick.