Silverline Audio La Folia II


I have a pair of Silverline Audio La Folia II speakers.   One of the woofers blew, or the wire from the terminal to the cone broke off.  The woofer is an Eton 800-8/37 and they are no longer made.

I don't know a whole lot about speaker building, but from what I have read on a dual woofer setup such as this it is important to use identical drivers.
There is a replacement  Eton 8-212/C8/37 Hexacone Symphony II 8" Woofer available from Madisound.  I am guessing this is the new replacement for the woofers I have.  I don't know what the differences are and if I can change one or if I should change all four.
These speakers seems to be ideal for classical music and tube amps.  I tend to listen more the classic rock, these woofers don't like the heavy bass of classic rock.  Maybe I can move my 15" sub to the main room and crossover at 80-100 Hz.  They are a very detailed woofer, but not deep bass.

Other thought was to change all four woofers to  ScanSpeak Revelator 22W/8857T-00
From what I have read these will put out more bass.  Specs here  https://www.audioasylum.com/messages/speakers/283483/silverline-audio-la-folia-ii-the-real-facts say that the crossovers are 1800 and 3500 so it is a mid-bass.  If I go to the scanspeak will I lose detail vs the Eton on voice.
What else do I need to consider?
Dan
128x128audiophiledan
Also want to add, they are bi-amp capable and I do plan later to go that route. I miss my old KT88 tube amp. Right now they are driven with a Parasound A51, it's a decent amp for home theater, but not as musical as tubes.
Have you called Alan at Silverline? He might have a replacement driver and can best answer your questions. 
Sean,
Yes I spoke to Alan today, he has drivers and I have one coming.  We had the discussion that I could go to the new replacement from Eton, but may have to make changes to the crossovers, I chose to stay with original stuff.
Alan and I had a nice chat, really an outstanding guy and he has a wealth of knowledge on audio stuff.
Personally I feel his speakers are underrated. 
The cabinets on these La Folia II speakers are a full 2" thick, separate enclosure for the midrange.  Alan doesn't cut corners, a purist.

Like the you think the Scanspeak would have been a better choice more power handling. Not sure but think he used 6db crossover. When pushed the speakers will blow. At low volume it's ok but high with rock music will blow. And become strained.would have said Scanspeak think they can handle. Plus 6db crossover.