no volume control

Sugar1, what a Lightspeed will do is give what your source (cdp, dac, etc) is giving out without anything added or subtracted, in other words it's like feeding your source directly into your poweramp, yet with control over the volume. It's like an open window to the rest of the system.
Most owners say it is more 3d, and extendeds the frequency at both ends (highs and lows) that is because it is direct coupled (good for the bass. And it's top end is almost to infinity (good for the highs) which become delicate and extended.
It is not for you if you if you want to add colourations to fix problems elswhere in the system.
You can email me on
georgehifi at optusnet dot com dot au
Cheers George

Hi Sugar1. The 50 ohms drivability from your MF dac will easily drive the combined load the Lightspeed Attenuator and Rotel amp and the 1v sensitivity is also a great figure to have

Cheers George

If you can tell me what the output impedance of the MF dac is, and also what the input impedance of the Rotel is, I can tell you if the Lightspeed Attenuator is suitable for your system.

Cheers George