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Friday 31st is last day to reserve room under the discount block.

I would keep the Spirit Winds on your list. These really knocked te socks off a lot of us in 2014. Old tech, but SOTA performance.

I'll be measuring a pair in the near future, so stay tuned....

There is a new TB coming, the coax w4-2315: http://www.tb-speaker.com/products/w4-2315

Lots of speaker cable, 2c, or 4c wire is round. Just as info, Supra makes a coax cable called Quadrax (4c) with no center conductor. The theory around coax for speaker cable is that since electrons flow mostly around the circumference or surface of the strand of wire, then why have copper down...

They look great!

The Rev measures better than that in reality, and the Wavecor have not measured that good in 3rd party measurements with 5dB swings.

The 9900 has a waveguide. The face is dish shaped. The Wavecor tweeters may sound benign, but have very wobbly response profiles. Place the Rev in a cab, and it's fairly easy to get flat and accurate response like Jeff B did in his Spirit Winds design. I have rarely heard cymbals with as much...

I had a look at the other 'design' SB Acoustic TMM, and I'm not happy with the xover schematic. The way it's wired will place the 2 resistors and shunt coil on the tweeter circuit directly across the amplifier terminals in series. This is something that could cause a fire under higher outputs...

I will adamantly state that no Wavecor thus far will ever sound better than the classic SS Rev 9900. It is 30 yrs old, and still state of the art in performance. I have heard Dan's design there, and he is still having some personal complaints in integration. So, he is not fully happy yet. That...

Wow, Nixie tunes for the freq display! I have not seen that before.

https://www.ebay.com/sch/i.html?_dkr=1&iconV2Request=true&_blrs=recall_filtering&_ssn=superiorsell2014&store_cat=0&store_name=superiorsell2014&_oac=1&_nkw=sleeve%20sheath%20cotton

My opinion of the Thiel 3.7 was that they needed more PR surface area. The coax was nice. I also heard the 2.4SE, and felt the bass range was better behaved, as well as really liking the mechanically crossovered 4" "quasi-coax" unit with it. Shortly thereafter, they brought out the 2.7 hybrid...

If the NPE caps are really old, then I suppose the possibility is much greater.

At that ratio, likely no difference will be heard. I would wager 25% being film over the remainder would be enough to reduce the ESR for improvement or minimally change output level.

Just did these, patterned after some older XLO Signature speaker cables. I found the clear BFA-Z on Amazon, but apparently they are cheaper elsewhere. Solder type 4pole Neutrik SpeakOns wired as 2pole since I had them, using 2/16x10' copper as a single strand per, then once sheathed, twisted and...

AirCirc tweeter, Satori midwoofer, and Revelator 10". It SHOULD sound quite good!

If you like the D5.8, look at the Dynavox LW5004.

Unfortunately, this went over my head. I did not realize they were duals.

In opamp rolling endeavors over on diyaudio and development of a Sapphire head amp, Sonic Imagery Labs 995 modules were highly recommended. Just in case you want another avenue to explore....