CES 2007

If you're PrimaLuna, it's the DiaLogue, an integrated tube amp available in two models: the $2199 DiaLogue One and the $2499 DiaLogue Two. Both amps deliver 21Wpc in triode operation and 30Wpc in ultralinear mode. What's the difference? The Two comes with Genalux KT88s, Solen capacitors, fast recovery diodes in the power supply, and a high-gloss hand-rubbed finish.

Both amps feature PrimaLuna's adaptive auto bias so you can stick in any tube and the amp will optimize performance for it.

"So you're enabling tube rolling?" I asked Kevin Deal.

"You bet! Tube rolling is fun—especially when it's a no-brainer."