User manual PEAVEY 400 BOOSTER DATASHEET

[. . . ] The back plate/pole piece is cold-forged from a single massive billet of ultra-low carbon steel, includes Peavey's patented Focused Field Geometry and is undercut to allow greater coil travel. The pole is extended beyond the front plate to improve coil cooling and make it more magnetically linear, and the front plate is 10 mm thick to match the long voice coil and provide a better path for heat and magnetic energy. The result is 50% more total magnetic gap energy than can be found in the standard Black Widow Super Structure magnet assembly. A patent-pending vent plate greatly improves voice coil cooling. [. . . ] The coil is overcoated with a tough thermoset epoxy for added durability, abrasion resistance and heat dissipation. The coil wires are solderless diffusion welded to high-conductivity OFHC copper ribbon leads, which are embedded inside the former assembly and soldered to the tinsel leads with high temperature silver solder. The solder joint is then coated 3. 0 / 85. 0 4. 5 / 127. 4 (1) 6" / 152 (3) 4" / 102 12-3/4 / 324 12-5/8 / 321 38 34 Single-Reflex Bandpass Sealed: 1. 8 / 51. 0 Vented: 1. 3 / 36. 8 (3) 6" / 102 9-3/4 / 248 78 45 ~ 131 1. 2. 3. 4. Small vented box This incredibly tiny enclosure has good bass performance and serious power capacity. An excellent choice for very compact, high powered systems and bass guitar/keyboard enclosures. Medium vented box This enclosure is an exceptional compromise of deep bass extension, high power handling, and compact size. It is capable of extremely high output to below 40 Hz for excellent performance. Large vented box The large vented box extends superb performance into the bottom octave for high level playback, movie theater, special effects and permanent installation. The enclosure reduces power handling by at least 15% but offers usable output to below 35 Hz. Single-Reflex Bandpass Special enclosure design that uses the enclosure as an acoustic filter for shaped response. Not as efficient as a vented system, but it doesn't require a crossover for subwoofer use. 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 ©2002 Printed in the U. S. A. Use a quality wood glue and fit joints tightly. Dado corner joints are highly recommended. Wood screws or a pneumatic nailer should be used to assemble the enclosure during gluing to maximize joint strength. Strength of the completed enclosure has a great effect on the bass performance of the finished system. Internal bracing is required to improve the structural strength of the cabinet. Low Riders can generate enormous forces inside the enclosure, and panels that aren't stiff enough will vibrate ­ reducing bass and creating undesired sounds of their own. If your cabinet vibrates or if the cabinet panels are not stiff enough, add more bracing. Vents shown in the examples require standard Schedule 40 PVC pipe for vent construction. The pipe should be dadoed tightly into the back of the baffle and glued firmly in place with high quality epoxy or high strength industrial-grade hot glue. Roughen up the outside of the pipe to improve the glue bond. Radius the insides of the vent ends to improve air flow and reduce vent noise. [. . . ] Peavey in no way accepts liability for any damage, accidents or injury that may result from design, construction or operation of enclosures using this information. Due to Peavey's continuing efforts to improve products, features and specifications are subject to change without notice. Sd: The functional radiating surface area of the cone assembly in meters2. BL: Efficiency of the voice coil and magnet system in Tesla meters. Also known Xmax: Distance the cone can move in one direction before the coil begins to leave the magnetic gap. [. . . ]