EARphone PURE AUDIOamp II: back of the attenuator showing the SMD (surface mounted devices) high precision low inductance resistors

This is a 10 Kohm Log unit with sliding steps and no "click" or any noise at all between the steps. It works extremely well.

Measured attenuation:

-oo dB

-60,0 dB

-52,1 dB

-47,0 dB

-40,8 dB

-35,9 dB

-31,7 dB

-28,2 dB

-25,4 dB

-22,4 dB

-19,3 dB

-16,5 dB

-13,3 dB

-10,0 dB

-7,2 dB

-5,1 dB

-3,3 dB

-2,0 dB

-1,1 dB

-0,4 dB

+0,0 dB

 

Done