I am not sure if Mr. Entwistlle used a DS5 or a DS5R or either from time to time . However if he had an ALEMBIC IN-2  in his signal chain then it supplied +/- 15 volts plus the Dual channel audio signal, Within the ALEMBIC IN-2 there are also provisions of 2 Balanced line out XLR terminations with ground lift and either PIN 2 or PIN 3 hot polarity switching suitable for direct connection to a recording studio board. There is also a rotary switch that routes the signal ; Stereo  AB discrete, stereo BA reverse  , AA ,BB  etc ... I have one and just rebuilt  the power supply section a few months ago.
 
 
(Message edited by sonicus on December 21, 2011)

 
This is it