200 Transport Only (2 versions)

203 DAC using bitstream (2 versions DAC5 and DAC7)and 263 using Delta Sigma chip set

206 CD Player 4 versions
16 bit serial no 1****
Bitstream serial no 2*****
DAC7 serial no 3*****
Delta Sigma serial no 4*****

207 CD Player 2 versions
MK1 14 bit red volume buttons
MK2 16 bit yellow volume buttons

208 CD Player 2versions
Bitstream serial no 1*****
Dac7 serial no 2*****

HTH

Mr Perceptive