Never thought i would say this as I own two great integrateds the evo 300 tube and Levinson 383 newly restored by Levinson. Don’t use the prima until the winter for obvious reasons (heat) Was at my local dealer he had a mint Marantz PM- K1 Ruby he said it would surprise me not a big class d output guy, had a peachtree once tones of power great midrange but no air/ top end. Was expecting the same thing with the Ruby boy was I wrong. No heat perfect for the bedroom with Tannoy minis and a Rel 9 x sub. The amp took me for a loop incredible sound with tons of power drove my Hales Revelation 3’s easy which dips down into 2.8 ohms. Incredible amp let’s just say it never went back for 2k in mint condition it was a steal. These are also made in Japan so the build quality was out of this world takman resistors high-quality propylene capacitors beautiful glass epoxy circuit boards I’m blown away. And the moving coil stage is phenomenal! Listening to Porcupine Tree’s new album right now it doesn’t beat my main rig but it comes close for half the price
Also this uses a toroidal power supply not smps probably the best value piece of audio I’ve ever owned 🤘🤘🤘