Responses from kraftwerkturbo

Experience with adding super tweeter?
"If I run that test blinded very few people over 50 would be able to tell the difference." I doubt that very much. If frequencies above say 12 kHz are missing, my money is on making a clear difference and high blind test colleration for 50+ audiop... 
Experience with adding super tweeter?
@mijostyn Even if we cannot 'hear' (correct: hear less) above 12k (or 16k for that matter), it is nevertheless a key part in any music. Simple test (already mentioned earlier): borrow a low fi graphic equalizer, push all levers UP, and the last on... 
Experience with adding super tweeter?
"not hear high frequencies" is certainly nonsense. Just use a cheapo old fashioned equalizer and pull down the "16k" lever while pusing all others up. Then listen to a violin (or pretty much any other instrumetn/music).     
One DAC to Rule it All
"recently found that keeping the <100Hz from the main speakers gave me a nice increase in resolution." That part I found myself with various 'full range' speakers, including current Nautilus 805 (which are not known to be weak 'down there' but ... 
Experience with adding super tweeter?
I remember the plasma. Ingenious (no mass!). But widespread use I think was also hampered by the Ozone (O3) that plasma 'flame' generates. Small doses are healthy, but higher/longer can cause problems (cance) IIRC? Ozone (O₃) is a colorless to bl... 
Experience with adding super tweeter?
The PHASE thing: at 10kHz, the wavelength is 3.4 cm. So moving the supertweeter through that entire range is not too difficult, maybe in 10 steps of 3mm or so.  But as with any OTHER speaker, the PHASE will only be "correct" (in line with other s... 
Songs you use when auditioning gear
45 years ago when our small group 'got into audio', we soon started to use classical music. NOT because we liked the music (NOT), but because all the modern music was CRAP, recoreded/mixed/molested to death with their umptieth track and gazillion ... 
Experience with adding super tweeter?
For test purposed (proof of concept), would it be sufficient to get my hands on a 'super tweeter' (ribbon, similar) and make a simple 6 db/oct high path (with various crossover points to play with)?   
Experience with adding super tweeter?
Makes sense, more 'airy', less 'precise'.   
Experience with adding super tweeter?
thanks for the input. What happened to the soundstage (size, precision)?   
Bananas rule, spades drool. End of discussion.
There are such things as SOCKETS to TIGHTEN stuff.  On my FIRST DIY speaker, I simply used copper screws and nuts. As with EVERY bolt on your car, proper tightened with a socket and a wrench, they never come loose, and provide gigantic contact ar... 
Finally...subwoofer that's aesthetically pleasing!
I thought about it, but then walked away since the colors clashed with my rug.   
How does bi-wiring work?
That: "NOTE: bi-amping is a different story". VERY different.   
Yes, cables do make a difference -- regardless of price...
Cables make a difference. Anecdotal evidence/example: 40+ years ago when our small group of young enthusiasts/future engineers/tinkerers dabble heavily in audio (and the first CD came out, yeah!), we soon found ’thicker’ is better (instead of 0.7... 
Smaller plug-in AC Purifiers -- Shunyata, iFi, Puron...something else? What do you like?
Just curious: using a Monster Power HTUPS 2700 Home Theater Surge Protection and UPS.  Does it do anything to reduce noice, improve sound, or just a glorified UPS and surge protector?