Received your Magnepan 30.7’s Yet

First off let me disclose that I am a dealer and I have heard all models that Magneplanar produces except the 30.7.
 I do not sell Magneplanar  but as a dealer I have sold some of the worlds most exotic planar magnetic speaker designs  which include Wisdom Audio, Genesis and the flag ship BG Radia FS 880.
In all my years as an audiophile and a dealer  I have been most satisfied  with my musical enjoyment with a company by the name of GT Audio Works.
 The speakers are a very special hand crafted  Open  dipole planar magnetic speaker.
 What makes them so special is the fact that the main driver which is almost 6 feet tall Does not contain a transparency robbing crossover.
 Additionally, unlike other manufacturers they do not employ the use of inferior aluminum traces but chose to use pure 6N copper traces (  A much better conductor of electrical signal then aluminum)
 Most other manufacturers do not use any other material but mylar or kapton  to reduce or eliminate the resonances these materials produce when they
 Deliver the signal.
 GT Audio works is the only company that I am aware of that is using a quasi-membrane (not just mylar or kapton alone) where the copper traces are bonded to which eliminate these resonances that can be quite unappealing on planar magnetic speakers that only contain a single surface driver using only mylar or kapton
 These speakers in premium wood finish or  hi gloss paint retail for 17k  and have won numerous awards in many audio shows. Last year they were awarded best sound show at Capital Audiofest 2017 by AV Nirvana  and we’re given rave reviews by numerous reviewers including Kemper Holt of Avshow rooms and enjoy the music. Kemper actually owns a pair of the speakers.
 They can also be purchased with the optional open baffle servosubs -  which brings the response of the speakers down to 15 hz 
 We welcome all auditions.

The 30.7s will be demoed Friday at Audio Concepts. I hope to make it. 

I listened to the GT Audio Works speakers faxer is bragging about., They sound like two people playing a pair of comb and tissue paper kazoos. Badly. Frequency response is actually not terrible if you like the huge suckout all through the midrange. Then the giant boom of the thumping lump they call bass. Remember those modern Fire alarms that drive you out with the screech. Treble.. same as on the GTs. White Van speakers have them beat by a mile. But if you came here to read about Magnepan 30.7s, don’t pay me any mind.

Faxer, minor technical quibble -- while it is true that copper is a better conductor than aluminum, it is a worse conductor *per unit mass.* That, not cost, is why Magnepan and most other speaker manufacturers use it instead of copper, which would cost pennies in the amount used in a planar speaker.

Interesting that they used it to reduce resonances, though. I'd asked the guys at GT about why they'd use it at a show and as I recall the guy I spoke to didn't know.

That said, according to press reports, Magnepan has reduced the resonances in the new high performance midrange of the 30.7 via other means. (The true ribbon tweeter already had low resonance.) I'm looking forward to hearing it (and the GT, which wasn't playing when I saw it).