Feliks Audio Arioso 300B Integrated Amplifier

I was worried about the rectifier tube swapping, but the NOS 5C3S included here sounds incredibly smooth. Pairing it with my Klipsch speakers, the soundstage feels wide and detailed without any harshness.

The CV 181-TII driver tubes really opened up the midrange on my old jazz recordings, bringing a clarity I hadn't heard before. The 300B magic is real—even at low volumes, the detail and air around instruments is captivating.

The CV 181-TII driver tubes deliver such a lively, textured midrange that my usual listening session turned into a three-hour marathon without me noticing. Paired with the NOS 5C3S rectifier, the imaging stays remarkably clean and fast, never veering into the syrupy haze some 300B amps get.