DENVER, CO--JBL Professional VERTEC line array loudspeakers were deployed by rental sound system provider, ATK Audiotek, at the Democratic National Convention at Denver's Pepsi Center. A JBL VERTEC system was also used for presidential candidate Barack Obama's acceptance speech at the city's Invesco Field football stadium, with Crown power amplifiers also in use at both facilities. The combination of JBL speakers and Crown amplifiers has also served as the sound system of choice for many of the party's recent election rallies and assemblies around the nation.
Event Sound Designer and Chief Engineer Pat Baltzell of Baltzell Audio Design specified 82 JBL VERTEC VT4889 large-format line array loudspeakers, eight VT4880A arrayable subwoofers and 68 VT4887 compact line array loudspeakers set up in distributed fill arrays for the Pepsi Center sound system. ATK Audiotek deployed 22 channels of bi-amped amplification with Crown Micro-Tech 1200 on the high frequency drivers Macro-Tech 3600 for low frequency drivers. The portable system for Invesco Field comprised 76 JBL VERTEC VT4889 full-size line array elements and 12 JBL VT4880A arrayable subwoofers in sports-venue perimeter configuration along with 32 JBL VT4888 midsize line array elements for delay-tower applications powered by three racks of Crown I-Tech IT8000 amplifiers.
According to Mike Stahl, president of ATK Audiotek, the system performance, ease of integration and proven reliability make Harman Professional components the go-to solution in such high-profile applications. "For these once-in-a-lifetime special events we cannot afford to miss a spoken word, a musical note or any subtle inflection, which is why we work with the sound components and the people from Harman Professional. JBL VERTEC loudspeakers and Crown amplifiers provide my team with the sound system performance to get our job done successfully along with the ease of mind to sleep comfortably before these large events."