Tannoy Turnberry vs Fyne 502SP?

I purchased a pair of F- 702s before the last price increase, and I am very pleased with them, driving them with a Rogue Audio Stereo 100 Dark.  Superb imaging, sound stage, and tonal qualities.  Depending on the recording, the performers appear to be in the room with us.  The innards of the 502SPs are reportedly the same, the cabinet being made of high quality MDF rather than numerous layers of veneer.  I am not sure how this might alter the sound, but it should not differ greatly from the 702s.  

It's just odd to me that just the different cabinet for the 702s is commanding an almost 2x price tag over the 502sp. There has to be a reason. It just seems bizarre to me that a $6k price difference could be chalked up to *just* the cabinets, but who knows. 

Probably my biggest hesitation with these is that the sensitivity on them is fairly low. I usually prefer to run tube amps and they tend to be fairly low WPC, so I'd be concerned about these getting enough power from tubes to shine properly. 

But, maybe like Tannoys, they just *work* even when the numbers suggest they shouldn't. 

Late comment for this posting.  I’m running the 702 with 30 wpc class a solid state, and there is plenty of power, and bass control.  Tried the higher powered model of my amp rated at 100 wpc and less expensive.   Went with the lower powered amp.   Very easy to drive. 

Like Jim Smith, my main stereo speakers are Fyne F703s. Best sound I've had in my home. I've owned a number of more expensive speakers in the past. Weiss DAC, Zesto electronics, SME table.

I own the Fyne F704s and they are remarkable. I have heard great things about the 502SP from owners. Do try and listen for yourself.

@grannyring Circling back to this post to see if there were any updates, I also noticed you are parting with your 704s! I do wish I was in the position to buy at the moment (though, I'm not exactly in pickup vicinity)!

@tennisdoc56 that is good to hear. I've been considering pairing with a NAT HPS amp but had some concerns about whether it would be enough power to drive the fynes (or tannoys, frankly).