Onix ERT

AV123 has begun shipping a magnetostat supertweeter designed to aument the high frequency reproduction of any speaker. It has a frequency response of 8khz-45khz (+/-3db) and is housed in an attractive piano black enclosure that is devoid of any logos or branding so it will blend with any speaker. The ERT has an adjustable 6db/octave crossover with two selectable points (11khz and 15khz) and stepped attenuator that allows 4 different gain selections (87.5db, 89db, 90.5db, and 92db @ 1W/1m).
ERT Product Page
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