I am going to be using the T+A DAC 200 with the Sarah.  I'm pretty sure that when the DAC 200 is set to line level output, the voltage is 2.5 Vrms with the RCAs.  Is this in the optimal range, or is it too high for the input of the Sarah?  

With my Alan Eaton 45 monoblocks, it overdrives them slightly when using the DAC 200s line level setting.  It's not a big deal, as the DAC 200 has a stepped resistor volume control, so it still stays analog throughout the volume range and I could always dial it in to a more optimal level in order to use the volume knobs on the Sarah for everything.