FiiO K13 R2R : A Bigger, Smarter, and More Capable R2R Desktop All-Rounder Pros: * Powerful output — easily drives full-size hard to drive headphones and planars. * Clean, natural R2R sound with more air, clarity, and depth than the K11. * Solid aluminum build with a nice “skylight” window and smooth controls. * Customizable RGB light that also indicates the file sample type. * Lots of inputs and outputs, including balanced, XLR, and Bluetooth 5.4. * Built-in 10-band EQ PEQ for sound tweaking. * Dead-silent background, great dynamics, and wide soundstage. * Independent volume memory and side USB-C Cons: *PEQ only accessible via the mobile app (web app not supported yet). The FiiO K13 R2R landed on my desk last month, and I’ll be honest it took me a while to stop listening long enough to actually start writing about it. I’ve been pairing it with all kinds of sources, IEMs, and headphones just to see how far it can go. I’d been looking forward to this one ever since Fii...