Neumann - A glimpse into the core: Its smooth top-end with a subtle tube shimmer makes the #U67 an outstanding vocal microphone. Who is team #TubeMicrophone? More info on the U 67:
Neumann U67, The evolution of a Legend - Mic & Mod
Cathedral Guitars U 67 CG | RecordingHacks.com
U67 DIY Microphone Kit - Neumann U67 Clone - Mic & Mod