I purchased 2 Acoustat TNT200’s to have rebuilt and converted to Monoblocks.
They were purchased to power my Acoustat Spectra 33’s, which I also have rebuilt and upgraded. Before the conversion I used 1 amp in stereo mode to power the Spectra 33’s and a Acoustat passive sub that came with the panels. Sub sounded bloated soft and slow. The panels alone sounded good but did not deliver what I was expecting from all the hype surrounding these panels. I was ready to sell the lot. Fast forward, panels are rebuilt, amps are rebuilt, pushing somewhere around 900watt @4ohms per side. These things sound spectacular, airy, controlled and Soundstage that puts you right there. Base on your comment, no not a bigger transformer or larger caps, rebuilt transformers and new caps. Each amp is now a monoblock which essentially more than doubles the power rating. This makes a big difference at low listening levels. Dynamics from a Electrostats is rare. IMO, improving the power supply and larger caps associated with what’s required for those upgrades, would give you a better sounding amp. Converting them to monoblocks would be enjoyment ×2....