Tested and removed from Polk RTA 12

Polk Audio I-Sonic BM1125-A Digital Entertainment System.

Polk Audio I-Sonic BM1125-A Digital Entertainment System.

Polk Audio I-Sonic BM1125-A Digital Entertainment System.

Polk Audio RTA 12b Speakers - owned since they were new, great sound, excellent condition

Polk Audio RTA 12b Speakers - owned since they were new, great sound, excellent condition

Polk Audio RTA 12b Speakers - owned since they were new, great sound, excellent condition

Polk Audio RTA 12b Speakers - owned since they were new, great sound, excellent condition

This is a pristine pair of Polk Audio MW6500 pair for early Monitor 10 and RTA 12 speakers. These were taken from a pair of RTA 12s (not the B or C model- these are the earlier model with the slightly smaller enclosure, equal drive between the two midbass drivers, and Peerless tweeter that stood by itself on the enclosure with no mounting plate). This pair of 6500s is near-perfect, two of the nicest I have seen. They play fine, measure good, and have no physical damage anywhere (cones and surrounds are perfect). I have included the basic measurements for these two drivers. As you can see, they measure 6.7 and 6.8 ohms in resistance. All other measurements fall in a range of typical tolerance values. I have applied a careful and smooth bead of metal epoxy on both sides of the magnet to avoid any magnet shift in shipping. As many know, when these older Polk drivers take a bump being shipped, the old magnet glue lets go and the magnet shifts position, trapping the voice coil in place and rendering the driver useless....unless one has the equipment and skill to disassemble the unit and reset the magnet and back plate assembly. Best to avoid it in the first place rather than hope for the best in shipping. Free shipping to domestic 48.