I'm planning on replacing the grill cloth on a pair of L300 (original/aged "camel" color) with new JBL "blue" that I purchased from Zilch. Could a L300 owner help me out with some measurements of their L300 grill cloth? I have 2 yards of Zilches JBL "blue" grill cloth and want to make sure that will be sufficent to recover the L300 grills.