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RE: Your best tweaks for fullrange

DG is NOT shielding the speaker. The flux fields will stretch out forwards and backwards. To shield the speaker you need to completely enclose the magnet and to be honest regular iron will work just as well,

Magnetically conductive material tends to capture the "lines" of magnetic force and within that material moves faster than through air speeding up magnetic efficiency.

MJ has a point : since we are working with magnetic fields there is an associated E field generated by the magnetic induction. Mumetal manufacturers recommend layering the mu metal with copper foil and it speeds up the magnetic field even more.

Even when wrapping the magnet, it is important to eliminate sharp corners. Even a small radius on the corners seems to "sweeten" the sound.

two decades ago I was attempting to build shielding for some of my favorite speakers for use as center channels. It was a great learning experience.

One of the best tweaks was to imagine two lines tangent to the magnet of , say the tweeter and midrange. Now place a few layers of mumetal and copper perpendicular to the centerline of the magnets but within the tangents (sorry scanner is down, but I will send a picture later), and halfway between the drivers. ACtually placement is similar to how I recommended the putty be placed on the front baffle, except the mu metal strips should be placed parallel to the magnets and in the line of sight of them.

There is a tremendous increase in detail within the crossover points. The magnetic fields of each driver is actually affecting each other and a lot of what we consider crossover distortion disappears, even though we may have not even noticed it before


Of course YMMV and FWIW



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