Cube Audio Nenuphar Single Driver Speaker (10 inch) TQWT Enclosure

This is a nice thread. A couple of thoughts based on system building...

Regarding whizzer cones, having used concentric, dynamic, hybrid dynamic, and full range hybrid speakers, I find whizzer cones to be no impediment to consideration of a speaker's sound as exquisite. I am currently using various speakers with whizzer cones and find they are as capable as any of achieving resolution on a par with very different drivers including ceramic, metal, etc. 

Regarding damping factor, I had an interesting review of the Gold Note PA-1175 MkII for Dagogo.com, which offers an on the fly Damping Factor switch. This is one of the most curious and beneficial amp functions I have found in a SS amp. at DF of 25 the amp sounds quite like a SET (only with more power) and at DF of 250 it acquires the characteristics expected more of SS. It reveals how much DF does influence the speaker's performance. My experience was that lower DF will cause a plumping and slight rounding of the bass with less absolute cleanness on edges of notes, while higher DF does the opposite. 

david_ten, thank you, I appreciate the appreciation! :) I did not mention the review with any intent to draw you away from your current amp, just for general info to the community. 

It IS shocking, how fundamental a shift in character of sound attributes a system can undergo. That holds true for the genre of speaker, the caliber of the speaker, and the development of the audio system. There are dozens of levels of sound quality at a minimum.

It is also surprising how quickly we can change our allegiance based on acceptance of another set of criteria, or being impressed by operational strengths of a speaker or system.  

My "problem" ( I surely do not see it as that, however) is that I love all the genres of high fidelity speakers!