I dont agree with the TVC solution suggested for the following reasons :
The Dynacos do not have a very sensitive input stage and sound much better driven from an active preamp with good voltage drive. I own a pair.
Secondly, TVC volume pots have phase shifts at different volume settings.
TVC's to my ears can be very transparent, but they sound thin and lack timing due to the lack of drive and phase shifts at different volume settings.
The best preamps I have heard with the Dynacos are tube preamps with lots of drive.
The Dynacos do not have a very sensitive input stage and sound much better driven from an active preamp with good voltage drive. I own a pair.
Secondly, TVC volume pots have phase shifts at different volume settings.
TVC's to my ears can be very transparent, but they sound thin and lack timing due to the lack of drive and phase shifts at different volume settings.
The best preamps I have heard with the Dynacos are tube preamps with lots of drive.