Zu Omen Defs and Ice Amps?

If you are worried about 'excess damping factor', toss a power resistor in series with the speaker. That'll lower the damping factor! And 'simulate' a current source amp, using SS. Carver did it and so did Pass (experimentally)

The Zu enclosure / driver combo is probably designed to be critically damped, with a Q of about .71 This may not react well to hi damping factor amps.
The lower DF of tubes makes it sound.....right......

PS: The inductor in my panels has a DCR of 0.4ohms. An inductor of .08 ohms would be pretty small.

All class D amps do not suck.I agree with Audiofeil about the "All class D amps
suck comment"Makes about as much sense as people who say ,all fords ,or
chevys suck! And I live in Fla.

0.4 ohm is pretty high limiting DF to 20.

Here is an example of good inductor for the woofer:
http://www.parts-express.com/14-gauge-c-core-toroidal-inductors.cfm

"The lower DF of tubes makes it sound.....right......"

Probably an accurate statement.

High damping Class D amps may still sound good or better in some cases but I suspect these are in the minority. I would likley try it since I own good Class D amps but likely end up not going that way with the Zu's myself.

I picked up the TAD 125s as a complement to my Class D amps for my other system where I currently use more tube friendly speakers and may well end up trying others as well there down the road. The TAD has a lot of tube attributes however the bass is very well damped and controlled in comparison to many tube amp systems I have heard. The sound is more like what to me are the better sounding tube amp systems I have heard where it is not easy to determine a tube amp is being used by listening. A very high end VAC/Magico system I have heard comes to mind. I suspect only bigger and more expensive tube amps can drive those really well.

The total resistivity of the woofer panel / inductor is over 4 ohms....The ICE amp I use will yield a pretty high DF.

I'd be careful changing inductor Resistance since it will cause a change in driver balance and effect crossover point.

My DIY design is within 5% of the original inductor, aircore and 14ga. wire....Therefore NO current limiting and NO saturation.
The stock coil? 16ga. iron core......