[. . . ] SPECIFICATIONS PRTM 12 Nominal impedance: 8 Ohms Input connections: Two 1/4" phone jacks in parallel Enclosure materials and finish: Injection-molded, 1/4" thick polypropylene with textured finish; dark gray color Dimensions (H x W x D): 23. 6875" x 17" x 13. 75" 60. 17 cm x 45. 24 cm x 34. 92 cm Width in rear: 10" {24. 5 cm} Weight: 33 lbs. [. . . ] If this penetration depth is exceeded, then the insert may be damaged or unseated from the cabinet, severely compromising its mounting integrity!The correct mounting bolt diameter and threads per inch are: 1/4" x 20. For custom brackets, we recommend a 5/16" hole for the bolts to allow for tolerances and adjustment. 3 + 2 YEAR LIMITED WARRANTY NOTE: For details, refer to the warranty statement. Copies of this statement may be obtained by contacting Peavey Electronics Corporation, P. O. Box 2898, Meridian, Mississippi 39301-2898. injury and property damage. Additional speaker enclosures must not be suspended below a PR 12, nor should additional weight be suspended from one of these units. The four insert groupings include a top group and a bottom group, but some models have an additional group of four on the rear plane of the cabinet. [. . . ] Peavey Electronics Corporation · 711 A Street · Meridian · MS · 39301 · (601) 483-5365 · FAX (601) 486-1278 · www. peavey. com ©2003 Printed in the U. S. A. [. . . ]