The 8' door is supported by six industrial hinges and the 6'8" door has four. Each door has the same structure as the walls:MDF, Acoustiblok vinyl, MDF, 3X12 frame, 2X12 and 4X12 interleaved blocking, 4" 4 chamber carbon filters, 4" insulation, flexseal sprayed at all joints and finished with cherry plywood. They swing with a smooth, velvety touch of the finger. I can send you photos of the doors if you like.
As to my audio system, I've heard a system which trounces mine at a cost of $1.4 million. Otherwise, I estimate my system trounces 95% of audiophile systems despite their higher pedigree of components. Music is the thing I cherish, not the audio system. If my amps break down and can't be repaired (they're custom made), I'd buy a VAC 200IQ to replace it. If my preamp broke down similarly, I'd probably buy an EAR 912. Turntables, arms and cartridges are easily replaced today. I just bought a DAC to replace my EAR Acute. So, I wouldn't even think about audio equipment on my deathbed, only the music.
As to my audio system, I've heard a system which trounces mine at a cost of $1.4 million. Otherwise, I estimate my system trounces 95% of audiophile systems despite their higher pedigree of components. Music is the thing I cherish, not the audio system. If my amps break down and can't be repaired (they're custom made), I'd buy a VAC 200IQ to replace it. If my preamp broke down similarly, I'd probably buy an EAR 912. Turntables, arms and cartridges are easily replaced today. I just bought a DAC to replace my EAR Acute. So, I wouldn't even think about audio equipment on my deathbed, only the music.