EDIT (as of 2022-11-18) Caldera measurements and analysis thread (including MiniDSP EARS measurements): https://www.superbestaudiofriends.o...f-caldera-measurements-and-impressions.12863/ @purr1n 's impressions and measurements https://www.superbestaudiofriends.o...view-and-impressions.12693/page-2#post-395603 https://www.superbestaudiofriends.o...view-and-impressions.12693/page-3#post-395764 https://www.superbestaudiofriends.o...view-and-impressions.12693/page-4#post-396635 (FR) https://www.superbestaudiofriends.o...view-and-impressions.12693/page-4#post-396639 (Waterfall CSD) https://www.superbestaudiofriends.o...view-and-impressions.12693/page-4#post-396698 (Harmonic distortions) @ChaChaRealSmooth 's review: https://www.superbestaudiofriends.o...view-and-impressions.12693/page-4#post-396675 Product pages https://shop.zmfheadphones.com/collections/stock-headphones/products/caldera https://shop.zmfheadphones.com/collections/stock-headphones/products/caldera-kingwood-ltd (LTD Kingwood) Caldera will be officially announced on Nov 22. Zach's quotes in HF below. --- I will update the OP once Zach discloses more information. But I collected all the information I could see in various forums as of today (2022-09-12). ZMF's official post in the Instagram: https://www.instagram.com/p/CiYDFokOBuD/?utm_source=ig_web_button_share_sheet Shortly speaking, ZMF Caldera is a pair of planar magnetic headphones, expected to release in Canjam Socal this week. Estimated delivery is November. A few highlights from what GoldenSound posted in reddit (link). Atrium damping system + Caldera asymmetrical magnet structure (both patients pending) 80mm diameter ortho drivers Carbon fiber baffles 95db/mw Comply with Harman target between 1.5 and 4khz (not bass shelf) Stock wood is white Oaks MSRP $3500 with special release price of $3200 Zach also shared B&K measurements in HF (link). Below are DF-compensated FR (vs Atrium) and distortion results.