Here's my suggestion and for a LOT less money than the ARC Ref 75....
see if you can source an ARC D70 Mk1, or better still, a Mk2. With my SF's, the D70 Mk2 makes beautiful music. If you think you may need more power ( which I would doubt), then look at a D115 or better a pair of M100's. These older W Z Johnson designs are still IMHO very competitive with some of the best tube gear around. Plus, with the older designs, one isn't stuck with having to run a balanced only preamp up-line.
see if you can source an ARC D70 Mk1, or better still, a Mk2. With my SF's, the D70 Mk2 makes beautiful music. If you think you may need more power ( which I would doubt), then look at a D115 or better a pair of M100's. These older W Z Johnson designs are still IMHO very competitive with some of the best tube gear around. Plus, with the older designs, one isn't stuck with having to run a balanced only preamp up-line.