Dan, did you install the JM speakers yourself? If so, how difficult and how long?
Like Dave said, it's not that difficult.
When installing the new J&M 7.25" speakers, you have to reuse the original speaker to fairing mount. Just peel off the original outer grill, it comes off very easily with just a thin screw driver working loose the glue around the edge of the grill.
I'd say that speaker install was about an hour for me, but I'm getting pretty good at removing the outer shell of my fairing.
The only issues with doing one thing then another at a later time is the constant removal of the outer fairing. I'm not sure just how many times this thing can be removed and reinstalled without damage to the screw sockets etc. Also the inner fairing edge stripping is getting looser and looser every time I do this. Just last week I pulled it off to do the iPod Interface install. At the "same" time I wanted to do a hidden antenna and had to get crackin to find one. I should have just ordered long ago a Tune Trapper, but I put that off and finally I bought a powered Hogtenna by Biketronics. This thing worked great for me with only a FM station drop from 22 to 18. But after doing all of that I found out that I also need another connector kit as my HK radio didn't have CB or XM. It was NOT clear in the information that it was needed. The instructions were a bit more detailed, but you only get them "after" you purchase the iPod Interface kit.
So as far as the speaker upgrade goes, it's really easy and the $219 to my door price from Dr. V-Twin was great. Other than my Fullsac and TTS mods and looking at non mechanical upgrades, this is the best and one of the most inexpensive I've done.
I've not heard from anyone with the Boom Speaker upgrades, but I would imagine that they are an improvement over stock and about $60 less money. But I just have a problem replacing a poor HD part with another HD part. J&M has a great reputation. I enjoy my speakers to no end every time I ride, they're great and I love to hear great music clearly...
Good luck with your upgrade.