Did someone mention my name?
Just thought I would provide some input here...
One of the unique features of the CBM-170 is very wide and symmetrical vertical dispersion. Placing the CBM-170 on its side will, in most cases, provide the same performance if it were placed vertically.
The key here is where you will be doing your listening. When placed on its side, the CBM-170 will deliver the same response as a CBM-170 placed vertical, up to about 15-20 degrees horizontally off-axis.
If you are within this listening window (under most circumstances you will be), it would be very difficult to hear a difference between horizontal or vertical placement...
If you wish, send me an email answering the following questions and I would be happy to analyze your situation..
1. How far back is your listening positioning from the midpoint between the two speakers?
2. What will be the distance between the two speakers?
3. About how high off the ground will the speakers be placed?
Hope this helps!