You haven't shared your budget, but I would get a used krell ksa series Amp (or KMA series monos)...avoid the newer KAV models. Those old krells will elevate your system and demonstrate how good the Lrs+ can sound. Even if the amp needs to be recapped, it'll be worth your investment. Those old krells are damn good, high current and built like a tank and should be relatively easy on your wallet
I was thinking about finding some Apogees and my top amp choice was going to be the Krells. Alas, I need to focus on my end game for my current system before I start another project. Good luck (and move beyond the Wiim). The LRS+ has a modest price, but it needs a big boy amp.

