Just had a thought... If the Amiga can play back samples at 1.7Mhz then it could easily do 1-bit Pulse Density Modulation playback... With a sample stream of -128 and +127 samples only... that would give the playback the same quality as expensive Hi-Fi equipment... I guess the only problem would be the amount of RAM required... 2MB of ram would give a second of playback?