PI-1
Prelude integrated amp
This integrated amplifier is a new design, combining the highest performance with the cost and quality benefits made possible by our state-of-the-art production facilities. The PI-1 delivers 50 watts per channel (8 Ω).

Essentially the same design as the PI-1, but with a more powerful power supply. A lot of effort was put into developing an amplifier that delivers high-end performance at a modest price point.  The PI-2 has a rated output of 100 watts per channel (8 Ω).