Consider this post a third vote in favor of the Vista Audio i34. So far, it is the only 'cheap' tube integrated I've come across that doesn't sound that way. It sports great build quality, great linearity, and was designed to power speakers of average efficiency (87-90db) and impedance (4-8 nominal loads). Heck, it even drove my former electrostatics just fine, which sported a variable load that dipped down to 1.6 ohms in the upper frequency range. Yep, the Vista Audio piece is good stuff.