I have the 803D mains and they do indeed like good high current power.
After going through a few combinations, I now have the Mac C2300 peamp (with different linestage tubes) and a Spectron Audio MK2 amp (class D) which provides 600 watts/channel. They also sounded good with the new Bel Canto REF1000II (also class D with 500 watts/channel).
You have to be aware of the impedance limitations of the amp your speakers can dip between 2-3 ohms although nominally rated at 8 ohms.
I tried the Classe CAM 400 mono-blocks and they were ok but the Spectron was more musical and really brought out the speaker's capabilites.
I was also looking at the Audio Research LS-26 but none were available used when I was looking for a preamp. Note that the LS-26 sounds better using the XLR inputs/ouputs.
My 2 cents.
After going through a few combinations, I now have the Mac C2300 peamp (with different linestage tubes) and a Spectron Audio MK2 amp (class D) which provides 600 watts/channel. They also sounded good with the new Bel Canto REF1000II (also class D with 500 watts/channel).
You have to be aware of the impedance limitations of the amp your speakers can dip between 2-3 ohms although nominally rated at 8 ohms.
I tried the Classe CAM 400 mono-blocks and they were ok but the Spectron was more musical and really brought out the speaker's capabilites.
I was also looking at the Audio Research LS-26 but none were available used when I was looking for a preamp. Note that the LS-26 sounds better using the XLR inputs/ouputs.
My 2 cents.