Check out the Aronov LS-960I around $1000 used, a bargain.
Dual mono entails using the dual volume controls which are better for performance while representing a slight nuisance for those who don't trust their own ability to hear when the sound image is centered.
I am presuming this is not an issue for yourself, a confirmed dual mono aficionado.
As noted by Detredwings, there is a bit less of the purist dual mono theoretical ideal in a reasonably priced and sized tube integrated.
Dual mono entails using the dual volume controls which are better for performance while representing a slight nuisance for those who don't trust their own ability to hear when the sound image is centered.
I am presuming this is not an issue for yourself, a confirmed dual mono aficionado.
As noted by Detredwings, there is a bit less of the purist dual mono theoretical ideal in a reasonably priced and sized tube integrated.