Quote Originally Posted by Happy Camper
aA,

I'd suggest a hybrid amp with a digital source and an ss amp with analog. A full tube amp would be expensive because of the power supply needed to run the well. I'd suggest an output of at least 500 mw. The K70x are 64ohm but not very sensitive. AKG says 200mw max power rating but experience is complex material needs more reserve current. The K70x will scale well with better front ends and are ruthless on poor recordings.


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Specs around the web for the K701 are

Frequency Response: 10Hz to 39.8k Hz

Efficiency: 105 dB SPL /V

Maximum input power: 200 mW

Impedance: 62 Ohms