Chino, CA—August 10, 2011—PowerBass USA, a prime manufacturer of car audio speakers and amplifiers, is pleased to announce it will be attending the Knowledgefest 2011 trade show in Texas later this month. Once again Knowledgefest will be held at the Gaylord Texan Conference Center in Grapevine, TX August 28-30, 2011. PowerBass can be found at booth# 1019. PowerBass USA will showcase its signature Autosound and Xtreme lines of 12 Volt audio equipment, including the debut of their brand new 3XL series of Dual 2-ohm Subwoofers. Available in two sizes, the 3XL-122D and 3XL-152D are 12 and 15-inch drivers capable of handling up to 2,000 watts of power! "We are very excited about exhibiting at our second Knowledgefest", stated Robin McNeal, VP Sales and Marketing for PowerBass USA. "Last year we were very pleased with the turnout and this year we understand registration is tracking almost double," McNeal will be joined in the PowerBass booth by Jason Hannon, Western Regional Sales Manager. Located just outside of Dallas, the Gaylord Texan is billed as the most technologically sophisticated hotel in the Southwest. "This is a fantastic destination location to host Knowledgefest", commented McNeal, "If you have never been to a Knowledgefest before you are sure to be impressed by this facility and the quality of the seminars and guest speakers". For those interested in attending Knowledgefest on line registration is available at www.knowledgefest.org PowerBass USA, is active in the car audio and electronics market, offering a wide range of high performance speakers, subwoofers, amplifiers and accessories. Founded in 2001, PowerBass USA is celebrating its 10th Anniversary and offers its products in all 50 states plus 25 international countries.