Otherwise (when using the built-in speaker), all three channels are mixed at the same intensity. This signal appears to be also sent to the Tape output line also, so a connected Data Recorder could be used to record CPC music also.
== D/A converter table ==
These are the 16-bit values used in Arkos Tracker. They are more accurate than the datasheet you can find, as they were tested electronically by Grim and Zik:
0, 231, 695, 1158, 2084, 2779, 4168, 6716,
8105, 13200, 18294, 24315, 32189, 40757, 52799, 65535
== Datasheet ==