I’ve owned a pair of Pendragons for approximately a year now, and find they work well with a wide variety of amplifiers. Anything from low wattage tube amps to high wattage SS amps can give you great results. Right now, I’ve got mine hooked up to a fully refurbished vintage Marantz 2220B which supposedly puts out 20 wpc, but when measured, actually puts out closer to 25 wpc. I’ve also tried em with SET amps, Class A/B tube amps, and high wattage SS amps, and they seem to work well with pretty much anything you throw at em. Some sounded better than others, IMO, but that seems to come down more to personal preference and how loudly you listen to music.
Good luck with your DI’s!
Good luck with your DI’s!