EMT HMD 025 Cartridge Headphone Amplifier At the Optimum’s core are

At the Optimum’s core are three silver plated Ohno Continuous Cast (OCC) copper conductors

Hand-built point-to-point crossovers wired throughout with MasterBuilt Reference cabling

Speaker Cable Single Wire

especially rhythmic

For those who prefer to stream high-resolution audio directly from their computer

EMT HMD 025 Cartridge Headphone Amplifier At the Optimum’s core areThe HMD 025 is a hi fi mono cartridge a true mono generator, not a stereo cartridge summed to mono at the phono stage built around the professional EMT technology that served broadcast studios for decades, in a body sized for a hi fi tonearm. The stylus is a spherical diamond with a 25 micron tip radius the correct profile for the mono records the mid century broadcast archive is built on, and the profile that will track those grooves without penalty.