Tape Trail

Head Demagnetizer

140.80.199.91

3db

Have you noticed a difference with high frequency reproduction before and after use? Is there any documented proof of this working?

Follow Ups:

RE: Head Demagnetizer - Drumhead 10:32:22 09/15/17 (0)
The idea is that the magnetized heads don't slowly erase your tapes with the high frequency being erased first. You are better off using a demagnetizer as a preventative measure.
RE: Head Demagnetizer - CaliforniaBob 11:39:43 09/11/17 (0)
if you have a cassette deck, the AudioTechnica demagnetizer
is a must-have. It sends a signal at high DB then automatically
lowers it, then repeats it.

I hear a marked difference before and after. It is useful to
do this, as well as cleaning the heads, before you record.
RE: Head Demagnetizer - gordguide 03:01:04 06/02/17 (0)
Demagnetizing works, and is audible, but the heads would have to be magnetized in the first place to notice a difference. Many decks have seen little use and aren't significantly affected.

It's most noticeable with record heads vs playback heads, so if you are not going through the entire bias/record/playback cycle, you may not notice it as much with just playback only.
RE: Head Demagnetizer - michael22 10:58:52 02/18/17 (0)
I just demagnetized the heads on my Sony TC-850 to hear if there was any difference. It's very subtle, but I've always noticed a small increase in output and a very slight increase at the high end. (The tape plays both louder and brighter.) Nothing dramatic, but noticeable. I've been demagnetizing heads since around 1960 and have always noticed this effect, particularly after I've been playing vintage tapes for a few hours.
I have, but to support my findings... - kootenay 15:42:59 02/15/17 (0)
Here are some topics regarding on how to demag and whether you need to demag or not to demag your tape heads.
How to demag http://www.soundfirst.com/cleandemag.html
To demag or not to demag http://www.tapeheads.net/showthread.php?t=14447

If a thing's worth doing, it's worth doing well
(Proverb)

Edits: 02/15/17

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