I'm selling a Mjolnir Audio Octave II Special Edition (Balanced XLR) Electrostatic Amplifier. This is a 2021 Build as indicated by the PCB board. Note that this special edition has a higher retail price than the current 2023 build due in part to the balanced inputs. The current build only comes with single ended RCA inputs. The voltage can be changed internally via a switch (no soldering or pins) from 117v to 220v. I used this amp to perfectly drive Nectarsound HiveX and HiFiMan Shangri-La Jr. earspeakers (the Shangri-La Jr. are up for sale in another post). Note that this amp has ~20% more output power on tap than a Stax 353x / 400s or similar line. From Mjolnir, this amp has a "similar power envelope but more neutral sounding and has more power to the headphones."

Rated a a 7 due to one small scratch on the front face. See the photo for details.

My selling price of $649 includes US shipping and PayPal.