RSPE Audio Solutions, Los Angeles Premier Pro Audio Dealer

AD2055: Dual Mono, Pure Class A
Parametric Music Equalizer

The AD2055 combines 100 percent discrete, pure class A signal amplifiers with state-of- the-art passive and active filter topologies. The AD2055s unique circuitry delivers very high resolution transient detail at the operational extremes of real world equalization demands. The AD2055 auto-bias DC servo loop control eliminates the need for all interstage capacitor coupling. The AD2055 breathes life into all musical performances!



100 percent discrete, pure class A


Passive and active filter design


Transparent, minimal signal path


Very low noise-94dB


Balanced DC inputs and outputs


Hard wire relay bypass


High headroom+30dB output


Twin seven octave mid-sweep


X10 frequency multipliers


Wide bandwidth 1Hz to 500kHz


Sealed silver relays


Discrete class A power regulators