I have never heard one but read that the Bel Canto amps are on the warmer side. Maybe a pair of Hypex NCore NC500 based Bel Canto REF600M would work for you.
"Of three recent amps of my experience, the REF600M was the warmest (...)"
https://www.stereophile.com/content/bel-canto-eone-ref600m-power-amplifier
"In timbral neutrality I’d place the REF600M on the darker, richer side of the razor’s edge, primarily due to its more nuanced lower midrange."
https://www.theabsolutesound.com/articles/bel-canto-ref600m-power-amplifier/
"Of three recent amps of my experience, the REF600M was the warmest (...)"
https://www.stereophile.com/content/bel-canto-eone-ref600m-power-amplifier
"In timbral neutrality I’d place the REF600M on the darker, richer side of the razor’s edge, primarily due to its more nuanced lower midrange."
https://www.theabsolutesound.com/articles/bel-canto-ref600m-power-amplifier/