ARC preamps typically prefer high input impedance power amps (like their own ;-))
My experience is that otherwise dynamics and openness of sound are compromised.
They are also capable of high output levels so low amplification factor amps are most suitable.
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Oracle Delphi, SME V, Lyra Titan i, REF CD7, REF 3, REF PH2SE, VT200mkII, ML CLX 25th
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