User manual PEAVEY LOW RIDER 15 ASSEMBLY

[. . . ] with a special, thermally conductive silicone adhesive for encapsulation and heat dissipation. The voice coil assembly is bonded to the Kevlar cone and new, incredibly tough plastiseal-coated Nomex® progressive-roll spider using a thermoset epoxy originally developed for attaching nose cones onto ICBM missiles­truly an aerospace-grade adhesive. The spider and surround are bonded to the frame with a strong, toughened cyanoacrylate adhesive, which is also used to bond the dustcap to the cone. The magnet structure is all-new and was designed using extensive Finite Element computer modeling. [. . . ] 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. 9/02 80304779 APPLICATIONS The Low Rider is specifically designed for sub-woofer use, with extremely high output capabilities and massive power handling. While most sub-woofer applications are below 150 Hz, it is usable to frequencies as high as 500 Hz. The compact enclosure designs are ideal for instrument amplification and high portability applications such as DJ and small touring bands. They provide solid bass performance in extraordinarily small enclosures. Bandpass enclosures also fit into this range as stand-alone subwoofers. The medium-sized enclosures are still smaller than usual and have more bass extension and much higher output capabilities than conventional designs. They are excellent choices for high performance sound reinforcement. These designs are the best combination of size and bass performance. For permanent installations and applications requiring extremely deep bass performance, the large vented enclosures are ideal. The low frequency extension and high sound pressure levels these systems can produce is astounding. As is typical in large, vented systems with low vent tuning, power handling is reduced by at least 15% due to the increased cone excursion. Due to the Low Rider's high output capabilities, excessive levels may cause structural damage to buildings or induce permanent hearing loss, nausea, vertigo or intestinal disturbances in listeners. Please be cautious when setting maximum sound pressure levels. ® The Low Rider 15" driver works best in vented enclosures between 2 and 5 cubic feet (56. 6 to 141. 6 liters) and vent tunings from 34 to 45 Hz. It can also be used in certain single-reflex bandpass designs. As with the Low Rider 18, sealed, infinite baffle, horn, transmission line and dualreflex bandpass enclosures are not recommended. Active filtering must be included with amplifiers greater than 750 Watts. This filter should be a high pass 24dB Butterworth at a minimum of 25 Hz for the 18" and 32 Hz for the 15". [. . . ] Qms: Resonance characteristics of the mechanical factors of the loudspeaker. Qes: Resonance characteristics of electrical factors of the loudspeaker. Qts: Resonance characteristics of the electrical and mechanical factors combined together. PARAMETER DEFINITIONS Znom: The nominal impedance of the driver in Ohms. Revc: DC resistance of the driver in ohms Also known as Re. 800 Watts continuous per AES 2-1984, 800 Watts continuous per AES 2-1984, 40 Hz ­ 400 Hz 50 Hz ­ 500 Hz Usable frequency range: Cone: Voice coil diameter: 25 Hz ~ 500 Hz Kevlar impregnated cellulose 4"/100 mm Polyimide coated copper ribbon wire Polyimide-impregnated fiberglass former Nomex stiffener 30 Hz ~ 500 Hz Kevlar impregnated cellulose 4"/100 mm Polyimide coated copper ribbon wire Polyimide-impregnated fiberglass former Nomex stiffener Solderless diffusion welded OFHC copper leads 21 / 9. 5 8 6. 21 0. . 084 22. 73 33. 9 155. 1 154. 8 142. 3 10. 669 0. 364 0. 352 9. 6 0. 83 94. 4 1. 61 98. 4 / 1613 1600 211 / 3458 Low Rider 15: Small vented 2. 0cf Fb45 Low Rider 15: Medium vented 3. 5cf Fb38 Low Rider 15: Large vented 5. 0cf Fb34 Low Rider 15: Name:Single reflex bandpass 3. 0cf 100 Voice coil material: SPL, dB 95 90 Solderless diffusion welded OFHC copper leads Net weight lb. [. . . ]