lettori cd valve isis cd playerTerry Bateman, the now legendary designer of Rega electronics, has spent the last ten years thinking about a CD player with a tube output stage. Tubes have been used extensively in the amplification of musical instruments and recording equipment since the 1950s, so it made sense to develop a tube CD player. This approach has resulted in very linear circuitry, this is because musical instrument amplifiers are not hampered by a certain folklore that