Monoblock power amp for 45 DHT Preamp & R2R NOS DAC !

[lithiumnk]

Hello FM

Looking for mono block power amps for my system.

My tube pre is Otomon 45 DHT with mono volume pot. Output Impendace is 8-16 ohm & voltage is 4-6vrms.

My speakers are Jeff Bagby’s Kairos DIY sealed bookshelf. I’ve a small square room & listening position will be ~1.5m
Budget ~5L

Thanks