$2000 Tektons, which one for my use?

I think I read some where that you asked Eric if he change the 4 ohm Moab's to 8ohm?

Yes and I had mine made the standard 4 ohm because it sounds better. Mine are run now with a 20wpc Raven Blackhawk, play 106dB at the sweet spot in my large room, and with clarity precision and detail that must be heard to be believed. I would never even think of going 8 ohm.

I'm going to ask him a similar question. Can you change a 8ohm speaker to a 4ohm?

That's a different question. Because the first one was about Moab, but this time its about "a speaker". The total impedance of a speaker is in part the impedance of each driver, but also in the way the drivers are connected, in series or in parallel. So the answer could be yes, could be no. Or it could be yes but only with different drivers. It all depends on the particular speaker.  

Yes and I had mine made the standard 4 ohm because it sounds better. Mine are run now with a 20wpc Raven Blackhawk, play 106dB at the sweet spot in my large room, and with clarity precision and detail that must be heard to be believed. I would never even think of going 8 ohm.

• Is that dB(A) or dB(C)?
  
• Is it peak or slow SPL?
  

It seems like a lot of SPL for 20 wpc

That is loud, with a DBA that's thumpin', and with all those mid range drivers it's pumpin'. Ear plugs and muffs for me.. :-)

I get the ear bone tickle at about 92-95 db.. I have built in "turn it down" ears.

And all with a 20w/channel amplifier.
If it was horns I could believe it, but it just doesn’t add up.

I think the addition of powered subs has something to do with that high output.