The full Summa has a 15" high performance woofer and a 15" waveguide. The
enclosure construction is unique, made entirely out of composite plastic with a high performance polished finish. This is a large speaker, but reigns supreme in its performance.
Below are shown two data plots in 1/10 octave resolution. These are for the horizontal polar responses. On the left is a polar map which shows sound levels as
a contour map in 3 dB increments. The vertical axis represents the angle in degrees and the horizontal axis represents frequency in hertz. These plots may seem new since almost no one in this industry would dare to show this level of detailed data. There is a reason for that!
On the right is the exact same data set shown as a more typical plot. The lines are every 7.5 degrees for a very high resolution display of the Summas remarkable directivity control. From about 80 Hz to well over 10 kHz and from the axis out to almost 30° the response is uniform within a few dB - a remarkable feat.
Size: 36" x 24" x 15"
Speaker compliment: B&C 15TBX100 and DE250
Sensitivity: 96 dB / 2.83 volt / 1 m (0 dB on the curves below)
Impedance: 8 Ohms above 100 Hz.
Any color or texture is available on request. The Summa pictured to the left is in texture black. High gloss polished finishes available.
interactive data, run program and