The input signal selector, high pass filter, polarity-phase reverse, +48v power and the 20dB input attenuator all utilize local sealed relay operation. A variable, passive high pass filter provides a minimum phase shift design while eliminating low frequency rumble, wind noise and mechanical vibration at sub sonic frequencies. Two 100% discrete, high-voltage, symmetrical Pure Class A signal amplifiers are utilized per channel of the AD2022. The first operates in a cascaded-cascode FET configuration while the second stage amplifier is fully bipolar.The twin amplifiers share the total available gain requirement. This shared architecture increases the high level headroom capability, improves transient response and doubles the internal bandwidth of the ultra-high performance pure Class A signal amplifiers. High-current DC coupled, Class A discrete amplifiers are utilized for the output drive interface with +36dB capability into all known loads. Two large, high-quality analog VU meters indicate accurate signal readings while bi-color LED's offers peak indication at 0dB and +20dB.
Symmetrical Pure Class A design, two channels. Microphone and hi-Z instrument inputs. Selectable microphone input impedance matching. DC coupled Pure Class A outputs.
Variable passive high pass (bass cut) filters. Input -20dB pad for high level signals. All signal routing with sealed silver relays. Large illuminated professional VU meters.
All items are previously owned unless otherwise stated. Please feel free to ask any questions you may have.
We guarantee the authenticity of all our products. All pictures shown are of the actual item you will receive. The item "Avalon Design AD2022 Dual Mono Pure Class A Preamplifier" is in sale since Monday, September 26, 2016. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips".
The seller is "tos-1400" and is located in Eustis, Florida. This item can be shipped to United States.