The external dimensions of MartinLogan Motion® XT F100 is 1213 x 318 x 381mm / (47-3/4inch x 12-1/2inch x 15inch ).
The base area of MartinLogan Motion XT F100 is approximately 1211.6cm2 / 187.8inch2.
Read our detailed MartinLogan Motion® XT F100 Review