Tube amp

@luvrockin   Very familiar with your 801s, all 3 of the series. I do not question the use of a tube amp, but ime, as Charles indicated, always driven with beefy ss. Are you happy with your system, musically ( not talking visually ) ? I have always recommended with the series 3 vertical biamping.

When someone says to me, "they are happy with their system", but are always looking to upgrade, this tells me, they are not happy with their system, whatever that might be. This is fine. The audio roller coaster never stops. Vertical biamping is when you have 2 of the same stereo amplifier, with each one driving just 1 speaker ( an amp channel for the woofs, the other for the mid/tweeter ). High quality y connects are available, but, you would need additional ics and speaker cable. IME, this gave me the best results. Horizontal biamping, as you are speaking of, is also common, but using a 2nd of the same amp is still preferred ( for many reasons ) imo/ime. Impedance, sensitivity and gain would be critical, for the 2nd amp, whether used for bottom or top. I understand the upgrade bug.