Need speaker suggestions

Thanks all!.....From what I can determine the receiver(RXV1400) is rated as 110 watts RMS to all channels, so would the Zone 2 be the same since these speakers are connected to the "surround back" speaker terminals. Since I'll never have a sub in this room low end extension is important. Ohms have always interested me but I guess I need to determine what this receiver will drive efficiently?

The Vandy's are usually 6 to 7 ohms nominal impedance. Importantly, Vandersteen speakers tend to be an easy load to drive since their impedance does not vary excessively with frequency (IOW, the "nominal" impedance of a speaker doesn't tell you all you need to know about driving it.) Unless your room is unusually large, the Yammi should push them just fine. I got my 1Cs when I was using a Pioneer Elite AVR rated at 90 watts/channel. I had no problems with loudness. I will say, however, that as I have upgraded amplification (currently using an Odyssey Stratos HT3 rated at 150 watts/channel), the quality of the sound has improved. The 1Cs might be a little weak in the lower octaves, IMHO. Without a subwoofer, I would shoot for at least the 2Ce if you can.

You will probably need to look for a speaker atleast in the 90db efficient range and the higher the better.

Looking for an very efficient 90Db+ speaker as Chadnliz suggests sounds like a prudent approach in this case.

You can pick up a used pair of VonSchweikert VR-2's for about $1600... easy to drive & well built.