With the increase of high quality 100v line loudspeaker solutions comes the need for high quality amplification. Traditionally this is achieved by the use of transformers with the associated problems of; limited frequency response, cost, saturation, size and weight. The transformer-less topology employed in the design of the CXV225 & CXV425 amplifers addresses all these problems, resulting in an amplifier that will deliver full frequency range and be the automatic choice for 100v line applications.