I'm sure you noticed but just in case, the Meniscus kit is with the V1 ScanSpeak Woofer 7" not the SB Acoustics 6".\nI started knowing about the BMR with the old woofer. It was praised highly then. How much could it have changed? 6.5" is really my absolute minimum anymore.Do not worry about those woofers. Both are quite good as they are implemented in the BMR Monitor 3-way. They aren't identical in sound, but both meet Dennis's stringent sound quality requirements.\n\nThe reason for the switch came about when Dennis Murphy started manufacturing the BMR Monitors in Asia. The cabinets were made near Shanghai, shipped to Taiwan where the crossovers were built and installed, along with the drivers. The ScanSpeak woofers come from Europe and the SB Acoustics woofers come from Indonesia. It made more economic sense to use the less costly SB Acoustics woofer, and shipping to Taiwan cost less and took less time as well. Shipping the ScanSpeak woofers from Europe to Taiwan became very costly, slower, and once the pandemic began, shipping became erratic. Once assembled it all had to be shipped again to the USA. \n\nThe Meniscus Audio kit always used the original woofer, the ScanSpeak 7".\nI'm not worried about the cabinet work. Pretty much anything around a speaker cabinet is basic carpentry. The finish work is where the challenges lie. You should see what I design and build as a day job. :DThe issues with the BMR Monitor cabinet have to do with the compartment for the mid-range. The driver's frame must have added compressible gasket material to form an air-tight seal with the cabinet baffle. There should be no air leaks. And, the compartment behind the mid-range driver must be stuffed with the blue Eco-Core fiber (made from recycled denim) supplied in the kit. The kit instructions spell out details of how much to stuff in.\n\nBoth the air-tight seal and the amount of stuffing are required for the mid-range driver to disperse sound so widely. Its critical for the uncanny sound image created by the BMR Monitor. Some of the early kit cabinets did not have a smooth enough mounting surfaces for the mid-range driver, and some of the early kit builders failed to get the gaskets and stuffing right.