QSC Audio - HPR0002

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Contents

Service Bulletin HEAR THE POWER OF TECHNOLOGY Title Replacing HPR 122i woofers Bulletin HPR0002 Issue Date May 7 2007 Models Affected HPR 122i Bulletin Revision Rev C Production Range March 2007 and earlier see serial number date code guide below Description In some HPR 122i powered loudspeakers manufactured pr or to April 2007 see Table 1 this bulletin applies to date codes 16 through C7 with the exceptions of GB7330741 through GB7330980 and GC733001 or later the woofer voice coil has seized due to part of the magnet structure s having shifted position NOTE This type of failure is likely to affect only original drivers in some but not all HPR 122i units made during this time span For those that do fail in this way there is no singular ca ...