User manual PEAVEY SHEFFIELD PRO 1500 DATASHEET

[. . . ] The 15" driver can produce high sound pressure levels down to 40 Hz, while the 12" can be crossed over as high as 4 kHz. Both drivers are strong performers in multi-way systems. ENCLOSURES To assist with the growing interest in home-built enclosure designs, Peavey provides complete parameter data on these drivers as well as several recommended enclosures for each model. [. . . ] Strong, extended bottom end with usable response to a solid 40 Hz. Power handling is reduced by about 15% due to the enclosure size. Special enclosure design using the enclosure as an acoustic filter for shaped response. Great for a subwoofer system. ONE 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 2989, Meridian, MS 39335 ® Features and specifications subject to change without notice. Peavey Electronics Corporation · 711 A Street · Meridian · MS · 39301 (601) 483-5365 · FAX (601) 486-1278 · www. peavey. com ©2001 Printed in the U. S. A. 5/01 Use a quality wood glue, fit joints tightly, and add internal bracing to stiffen the panels of the enclosure. ® 80305006 industrial hot glue. Rough up the outside of the pipe to improve the glue bond. Be sure to account for the displacement of the vent, bracing, horn (if used) and woofer in your enclosure design before building it, or it will be smaller than its intended volume. This can reduce bass output and mis-tune the enclosure. Line the inside of sealed and vented enclosures with batting such as polyester quilt stuffing. The batting material should conform to California bedding fire codes. Attach the batting with spray adhesive or staples, and keep it away from the end of the vent tube where it could be pulled in by air flow. When building a bandpass enclosure, design a panel or door to be removable for access to the woofer. Use foam weatherstrip to seal the panel along with enough screws and bracing to prevent leaks and buzzes. Fill the sealed volume loosely with polyester fiber, but leave the vented volume empty. Place the magnet of the woofer in the vented side for improved cooling. [. . . ] no: Electrical-to-acoustical conversion efficiency in percent Vd: Air displacement of the driver from negative Xmax to positive Xmax, in milliliters. Pmax: Maximum continuous program power in Watts. Disp: Volume displaced by the driver inside the cabinet when mounted on its rear flange, in inches3. SPECIFICATIONS Sheffield® ProTM 1200 Part # Size: 00458370 12" / 305 mm nominal Frame OD 12-1/4" / 311 mm Bolt circle 11-5/8" / 295 mm, 8 holes Cutout diameter 11-1/16" / 281 mm Depth 4. -7/8" / 124 mm Impedance: Power Capacity: 8 Ohms 800 W peak 400 W program 300 W continuous Sensitivity: Usable Frequency Range: Cone: Voice Coil Diameter: Voice Coil Material: 96. 5 dB 1 Watt / 1 meter 50 Hz ~ 4 kHz Impregnated cellulose 2. 5" / 63 mm 2 layers, thermally bonded copper wire Kapton former Nomex stiffener Net weight: Znom (Ohms) Revc (Ohms) S (M2) d Sheffield Pro 1500 00458380 15" / 380 mm nominal Frame OD 15-5/32" / 385 mm Bolt circle 14-9/16" / 370 mm, 8 holes Cutout diameter 14" / 356 mm Depth 6" / 152 mm 8 Ohms 800 W peak 400 W program 300 W continuous 98. 0 dB 1 Watt / 1 meter 40 Hz ~ 3 kHz Impregnated cellulose . 5" / 63 mm 2 layers, thermally bonded copper wire Kapton former Nomex stiffener 12. 5 lb. [. . . ]