I believe the answer is A.100 PAR64/1k, 25 control channels = 4 fixtures per control channel; 2.4kW dimmers means 2 dimmers per control channel. 50 dimmers.
75 Source 4 575, 25 control channels - 3 fixtures per control channel, 2.4kW dimmers means 1 dimmer per control channel. 25 dimmers for...