Is This Feasible?
What is wrong with the tower speakers that you have that you feel compelled to do this ?
Why not look into getting different speakers ?
Don't both speakers use the same mid and tweeter? So, other than allowing you to position the "woofers" in the 2.3's from the Mid/Tweeter in the 2.1's, what purpose would this serve? Wouldn't be easier to just use a sub, or a pair of subs, with the 2.1's and set the crossover a little higher? I wouldn't recommend setting it too high or you'll risk being able to localize the bass.
Thank you to everyone for your input.
Riley804: The midrange dome tweeter in one of the towers is blown. I believe the culprit was a showing of the latest "Hulk" movie at theater levels. The dome midrange does not take kindly to Hollywood sound effects. I love the characteristics of the dome midrange but it is a $300 repair. My wife is not too keen on making the repair considering the fact that it would be the second time in less than a year. So, I'm looking for alternatives using the equipment I have.
Usblues: Good advice. I'll assume that your encouragement suggests that you believe the B&K can handle the load.
Prpixel: Both speakers do use the same tweeter. However, the 2.1 does not have the dome midrange. That is the 2.2. If I had some 2.2s I would just swap out the modular that houses the midrange and tweeter and would call it good. The 2.1 has the 1 inch dome and a six inch woofer. Incidentally, I noticed that you used quotation marks when referring to the woofers on my 2.3s. Are they more appropriately identified as drivers?
Is there anyone who would caution me that the B&K could not handle this type of configuration?