Vintage speakers = NON magnetically shielded...
Good evening all;
I am relocating my living room electronics. I moved away the large entertainment unit that I used for many years as it really looked passť and was never adapted for optimum sound but rather adapted to accomodate my young family.
I have changed the entertainment unit for 2 small tower cabinets that somewhat matches the wood grain of my vintage speakers and furthermore puts them at hear level.
The area where I MUST set the electronics has somewhat limited space (80 inches) and must fit my 27 inches CRT Trinitron TV (center) and the 2 small tower cabinets (1 on each side of the TV) which are met to be used as stand for each of the vintage speakers along as storage for the driving electronics. The Tower cabinets are 19 inches wide while the speaker cabinets are 17 inches wide and contain 15 inches NON magnetically shielded drivers, 5.5 inches NON magnetically shileded mid driver along with 2 1 inches tweeters.
My problem, due to the space restraint and the power of the magnetic field generated by the speaker drivers, I suspect this will cause some issues (distortion) with the picture tube of my Sony CRT (In fact, I did a quick test and could see some color distortion).
My question, is anyone aware of some form of DIY modification in order to somehow shield the magnetic field from those speakers? Any suggestions or alternatives?
I have other speakers (modern, smaller and shielded) which I could use but while those vintage are not high end they are full of memories along with being in mint condition. I always loved the warm sound coming out of them. This small living room (10' x 12' Wide).
Any suggestions that may help with my magnetic field issue would be greatly aprreciated.
reply;mag shielding made easy.
Go to your nearest Sign making outlet or print shop (business cards )......or even a cheap dollar store or china importer, and buy the mag strisp commonly used on refrig reminders.
Originally Posted by TECHNOKID
Use the strips (2) glued together black side facing ea. other. staple them inside the cabinet nearest the speaker mags.
do only the side that will be adjacnt to the TV mon.
for added resist....place a cheap steel (1/64th thickness) plate onto the inner wall surface where the mags allign and mount it so that there is 3 in. below and above the mag. diam....the plates are scrap ...you can even buy plates at home depot....you can even use studd connector pieces holes and all.
This requires removing usually the large speaker for access to inner surface of spkr. you should be able to approach close to 4 inches before you begin to see distortion.