We have taken the best characteristics of our separate amplifier/preamplifier designs, and created a simplified product which offers an ideal combination of performance and convenience. All aspects of the circuit design and power supply are directly derived from the most recent versions of our separate components. The CAP-151 power supply includes a massive toroidal transformer, along with Classé Audio's unique solution to capacitive filtering. Rather than the large, slow filter capacitors found in most power supplies, the CAP-151 uses a large number of smaller capacitors distributed throughout each stage of the amplifier and preamplifier. These capacitors offer filtering in close proximity to the circuits they supply. The result is a lightning-quick response coupled with a more natural sound.

The CAP-151 includes a very special capability; with a simple touch of a front panel button, the amplifier and preamplifier sections of the CAP-151 can be separated. This is particularly convenient for use as part of a more complex multi-amplifier system, or for the purpose of inserting equalization or other room correction between amplifier and preamplifier stages. In this way, the CAP-151 offers the flexibility of separates while maintaining the convenience and simplicity of an integrated amplifier.

(from Classe Audio's Website)