You should see the Sig version of the OTO - and my turntable is almost the one here as well - first couple minutes - the Big C-Core transformers are great. I have long felt the OTOs are some of the more under the radar amps available - over 20 years selling - EL84 does some really gorgeous things. The video has the internal shots but better than a picture because you have some scale of size
It's sorta the same system I have had back in Canada (OTO "not sig version", J/Spe higher than J/D but with paper woofers, TT2/IQ3 and arm three but the older turbo charged Rega 250). The DAC 3.1X.II is likely my next DAC also in this video -