Avalon AD-2055
Little is documented about the Avalon AD-2055. The record shows it was a professional equalizer from the American pro-audio company Avalon, and that it got a full review in Studio Sound (August 1996, p.27). Reviewer Dave Foister opened with the observation that when pro-audio companies start using hi-fi vocabulary, it is usually time to tune out - and then found the AD-2055 the exception.
That review supplies most of the hard facts on the unit. Avalon claimed a frequency response of 1 Hz to 600 kHz within −3 dB, a figure the magazine printed with a "sic." It also claimed an unweighted noise figure measured over the 20 kHz bandwidth, a ×10 function that kept the controls manageable, and up to 16 dB of boost and cut.
Beyond that August 1996 review, no reliable production dates, original pricing or manual have turned up. The AD-2055 was on the market when the review appeared, but it left a thin footprint in the period press.
- Type: professional equalizer (Avalon, USA)
- Frequency response (claimed): 1 Hz–600 kHz, within −3 dB
- Boost/cut range: up to ±16 dB
- Controls: ×10 multiplier function
- Noise: unweighted figure, 20 kHz bandwidth
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