User manual PEAVEY 1200 STEREO MIXER

[. . . ] The magnet structure includes subtle changes to its geometry that improve power handling. While it appears the same as the standard structure, and replacement baskets from the '08 BWX series will fit on standard BW magnet structures, the improved power handling will be compromised if the standard structure is used. These new drivers also adhere to the familiar features of Black Widow products: cast aluminum frames, replaceable basket assemblies, Rubatex gaskets and high reliability, spring-loaded terminals are all used. APPLICATIONS The 1508 and 1208 drivers are excellent choices for a wide range of sound reinforcement, high-level playback, subwoofer, and monitor applications. The 1508sps driver is an excellent choice for general purpose sound reinforcement, and is available in both 4 and 8 Ohm versions. [. . . ] The 1508cu produces amazing bass performance in small enclosures, along with flat mid-bass response for an accurate, clean sound quality. 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 39305 ® 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 Sealed Vented Single Reflex Bandpas ® ©2001 80301841 Printed in the U. S. A. 5/01 The 1508he is best used as the bottom end of a full range enclosure. It has very high efficiency for superior output in the mid-bass and mid-range. However, for pure subwoofer applications, the 1508sps or 1508cu are better choices. The 1208sps works well in sealed or vented enclosure designs, and its smooth, extended frequency response makes it an excellent mid-range performer. Because the 1208sps's low frequency output is limited, it should be used along with a subwoofer when response below 60 Hz is needed. The best application for the 1208sps is in compact enclosures and very high quality mid-bass/mid-range reproduction at high sound pressure levels. The 15" drivers can work with crossover points as high as 2. 0 kHz but work best below 1. 5 kHz. FOR 1508-8cu: Small vented enclosure An incredibly small enclosure with outstanding bass performance for its size. Medium vented enclosure Small box with powerful bass and predictable, flat response down to an F3 of 45 Hz. Large vented enclosure Strong, flat response with bass extension to an F3 of 41 Hz. Deep, predictable bass quality for great subwoofer and multi-way system performance. Medium vented enclosure Super-high efficiency in a popular enclosure size. However, for subwoofer-only use the sps and cu versions which are better performers. FOR 1208-4/8sps: Sealed enclosure Excellent choice for a dedicated mid-bass/mid-range in a multiway system, or stage monitor. Small vented enclosure Very small system with excellent voice range perforance. Large vented enclosure Still not all that large, with very usable bass response. F3 is 61 Hz. PARAMETER DEFINITIONS Znom: The nominal impedance of the driver in Ohms. Revc: Sd: DC resistance of the driver in The functional radiating surface Ohms. [. . . ] Vas: Volume of air having the same compliance (springiness) as the driver's suspension. Cms: Mms: Restorative force of the driver's The total mass of the moving suspension in micrometers/Newton. Qms: Resonance characteristics of the mechanical factors of the loudspeaker. Qes: Resonance characteristics of electrical factors of the loudspeaker. [. . . ]