Robert,
The one thing I do not care for with the Musica is control of the volume.
It is not continuous, like the SB. You have to keep hitting the volume button on the remote to raise or lower. You can't just hold the button down.
In one system, with very efficient speakers, the volume won't go low enough. You will have to experiment with different amp sensitivity and speaker efficiencies.
Perhap a simple analog attenuator might help with this.
With Mike Garner's gear: Nuforce amps and SP Tech speakers, we had no trouble.