The original Helios Type 69 mic pre/EQ, designed by Dick Swettenham, was "The Sound of Olympic Studios", the legendary recording studio used by Led Zeppelin, The Rolling Stones, The Who, The Faces, Humble Pie and Bad Company to name a few.
The Helios Type 69-500 holds true to the original Dick Swettenham design, but with a number of modern updates such as 5db steps on the mic preamp gain switch as opposed to the original 10db steps, additional 16khz EQ frequency selection for today's high-bandwidth digital recordings, and a balanced output for easy interfacing with any digital converter.
