No, this is not possible. All Cambridge Audio products with a digital volume control have a fixed level digital output. The volume control is only applicable to the analogue outputs. This is because the system by which we alter the volume without degrading the audio quality can only be done via the functionality of the upsampling circuit. Directly adjusting the level of the digital output can only be done by reducing the signal and hence quality. This also makes maintaining a signal lock with the connected digital source difficult.