In the UK, I have been at an event where the Modwright PH 9.0 ’SE’ was demonstrated in a line up along side a broad selection of Valve and SS Design Phonostages.
This is the Fullest / Warmest SQ, I have heard in the past 10 years + , where there is still a perception present that the Bottom End is not muddy or bloomed.
The Speakers used at the event were over $100 000 to purchase.
It is difficult to project if the same experience is to be perceived in other systems, it might be best if an investigative trial could be arranged.
I only mention this model, as I know it relatively easy to come by in the US.