Looking at the stereophile measurements of the 3.6 the impedance dips to 4 ohms at approximately 50Hz then continues down to 3 ohms for the remainder of the test and occasionally bottoming at 2.3 ohms.
While this might be a problem for many tube designs the Carver VTA's have a 2 ohm tap if needed. My Eidolons are a load that dips below 4 ohms and the 8 ohm tap sounds great.
I'd suggest calling Underwood HiFi, they may have experience with the 3.6.
While this might be a problem for many tube designs the Carver VTA's have a 2 ohm tap if needed. My Eidolons are a load that dips below 4 ohms and the 8 ohm tap sounds great.
I'd suggest calling Underwood HiFi, they may have experience with the 3.6.