I still have questions along the output/preamp/volume control.
My only experience with active speakers has been instrument speakers (guitar amps etc.) and this: http://sonysava.wordpress.com/sava-7/580d_1/
The SAVA 7 system is lackluster, but my point is, it had multiple switchable inputs, a volume control that affected both channels, and a remote control.
1. If you're feeding these airmotiv speakers (or any of the Adam actives for that matter) a line level input (where you're not attenuating the volume level at the source), and not using a preamp, is your only choice to manually turn the volume knobs on each channel/speaker in concert when you want to adjust the volume?
2. And is your only choice to switch between sources to manually switch the RCA inputs?
3. If you did want a preamp that could handle two or three sources and switch between them and attenuate volume across both, what are some good transparent inexpensive choices?
4. And is attenuating the volume at the input really a good idea given that it's a line level signal (don't you run the risk of sending too boosted or too quiet an input signal)?