The AD2055 combines 100% discrete, pure class A signal amplifiers with state-of- the-art passive and active filter topologies. The AD2055's 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!
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100% discrete, pure class A 
 
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Passive and active filter design 
 
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Transparent, minimal signal path 
 
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Very low noise-94dB 
 
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Balanced DC inputs and outputs 
 
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Hard wire relay bypass 
 
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High headroom+30dB output 
 
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Twin seven octave mid-sweep 
 
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X10 frequency multipliers 
 
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Wide bandwidth 1Hz to 500kHz 
 
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Sealed silver relays 
 
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Discrete class A power regulators