The Daniel Hertz M1
The Daniel Hertz M1 ($100,000/pair), designed by Mark Levinson (the man), uses a high-frequency horn, a 12” mid-woofer, and an 18” woofer. The stainless steel frame surrounding the horn is said to optimize waveform termination and imaging quality, while those frames surrounding the woofers are used to increase the rigidity of the drivers. The speaker is divided internally into two sections: One section for the horn and 12” driver, damped using sheep’s wool for its high mass and absorptive properties, and one section with two tuned ports for the 18” driver.
As seen here, the M1 is designed to be powered by four Telikos M5 Mono Reference amplifiers ($8000 each): Each channel uses one M5 switched to frequencies above 80Hz and one M5 switched to frequencies below 80Hz. Also in the system was a Telikos M6 preamp ($10,000). The source was a $400 laptop running WAV files from iTunes.
Interesting story: Daniel Hertz (the company) takes its name from the two sides of Mark Levinson’s family. Daniel Levinson was Mark’s father, while Heinrich Hertz (1857-1894), a German physicist and the first to demonstrate the existence of electromagnetic waves, was Mark’s great uncle on his mother’s side.