I wouldn't rule out the Accuphase, but I would give it a listen before buying. Some people do feel that Accuphase is polite, but to me it is just very low distortion.
As far as matching with your speakers, Accuphase claims to double down to 1 ohm.. The December 2023 Stereophile has a review and measurements of the A-300, which is not exactly what you want, but may be helpful. The A-300 also was named Amplification Component of the Year in the December 2024 Stereophile. Don't count it out without hearing it.