The Mod in Pictures: Drawing In the Hurricane Nuts
I used the screws (with 3mm washers) to draw the Hurricane nuts into their holes. Some folks apparently use a clamp to push them through. My way worked great, but may be more time consuming than the alternative. I used 8-32 x 1 socket cap screws for the MWs and PRs, and 8-32 x 1 screws with 82 degree heads for the tweeters. I also used 3mm washers for the MWs and PRs. I don't suppose the washers are essential, but I like 'em.
BTW, I got the screws and washers at a local company called Tacoma Screw. They were about 1/10 the price of Lowe's or Home Depot. Shop around.
The Mod in Pictures: One Tweeter Installed After Hurricane Nuts
The Mod in Pictures: Follow The Signs
This is a bad photo, but it shows one my MWs. I wanted to point out the red spot of point that identifies the positive connection. The black/blue wires connect to the red dot connector, and the white where there is no red dot. Your speakers may differ.
The Mod in Pictures: One MW Installed Post-Hurricane Nuts
The Mod in Pictures: A Closeup of the MW Screws and Washers Post-Hurricane Nuts
Poor photo, but you get the idea
The Mod in Pictures: Another MW - Same Red Dot of Paint for Positive
The Mod in Pictures: Both MWs Installed Post-Hurricane Nuts
The Mod in Pictures: New Crossover in the Left Speaker
The Mod in Pictures: PR Reinstalled after Hurricane Nuts
The Mod in Pictures: Detail of the Screw and Washer on the PR
The Mod in Pictures: All of the Drivers Reinstalled Afer Hurricane Nuts
The Mod in Pictures: Another Closeup of the Crossover
The Mod in Pictures: How the Hurricane Nuts Fit
As you can see, the Hurricane nuts protrude slightly, but they are not in the way at all.
The Mod in Pictures: Detail of Drawing in the Hurricane Nuts
Again: don't overtighten.
The Mod in Pictures: The Receptacles for the Spikes
I tried screwing these into the MDF with no adhesive with limited success. On the second go around, I used a drop of Gorilla Glue on each. They've been drying for about 90 minutes. I'll give it another half an hour.
The Mod in Pictures: Spikes Ready to Install
I purchased a couple of 13"x13" ceramic tiles to place the spiked speakers on. I can't wait to hear the difference in the sound.
The Mod in Pictures: The End Of The Line
Here is the completed project - speakers on spikes on ceramic tile. If anyone has questions about this mod, please feel free to ask. People here were so willing to help me, I want to pay it forward.
BTW, I have a spare original Polk SDA cable (blade-to-blade) that I purchased from Helen at Polk before the mod. First $35 + shipping takes it. (It's brand new; original cost with tax and shipping is about $50).