Right now, PS Audio is selling their flagship preamplifier, the BHK Signature, at a closeout rate - half price. It's normally $7000.
I assume this means they are about to introduce the revamped version sometime soon. I've had it for a few years now, and I find it almost perfect for me. It has a tube input, and solid state output. Five RCA inputs, and five balanced. Common sense balance control and a really good headphone amp.
Anyway, if you are looking for a placeholder, this one would be better than average...
David