Krell KRC-HR - there's a used one here for around 2600 and a great preamp, the best they made until the newer models. It has balanced ins and outs, and would match well with the Levinson I presume.
I believe with your amp it's best to go balanced. The ARC LS-25, or BAT VK3 or 5 or 40 would also work well.
I believe with your amp it's best to go balanced. The ARC LS-25, or BAT VK3 or 5 or 40 would also work well.