Akai 747 w/DBX question


Hopefully there are still some reel to reel folks out there. So I currently have the 747 w/out DBX, and I have an opportunity to pick up the DBX version from a local person who owns a rather hi end audio store here in town. My question is: Is the Dynamic range extension worth the extra coin over the non DBX version? I don't record music from CD's to tape, and the added DBX if it works well should do wonders for recording from vinyl. I have owned reel to reels all my life but never this piece. Just curious if its worth the effort, and if you think it will it be an improvement.  
barnettk
Ok so this device is called "Han-D-Mag" and the instructions are on the actual device.. go figure. This thing looks like it was made in the 1970s at least.  The instruction say " plug in, Bring energized probe close to work, then withdraw slowly to a distance of 12’ then unplug form power source" so your instructions are more right then the way I was doing it. 
barnettk
... this device is called "Han-D-Mag"
That is the gold standard in head de-mags and is still being manufactured by R. B. Hannis.
 @cleeds 

Well well well what do ya know. That’s good! Ok I feel better now. I will perform the operation and see if it makes a difference. I am not really having s problem per se but if you guys recommend it needs to be done, and I have the right equipment to do it why not. 
Hey thanks for the info. I really love my reel to reel and I have had one since the 70s and I want to keep it in top working condition. I have it serviced once every two years so I Know the heads have not been de-maged at least since then, if even. 
Ok guys. I’m about to de-mag my tape transport and heads. Hope I don’t blow anything up.