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Newest Generation of MH Instruments’ Motorcycle Speaker System Drives Optimal Stereo Performance – Even From Low-Output MP3s
— Version 4.0 Rumble RoadTM Speakers Feature Upgraded Amps for 60% Higher Voltage Gain, Surface-Mounted Circuitry for Added Durability


TRABUCO CANYON, CALIF., Oct. 15, 2002 — Powersports electronics manufacturer MH Instruments (MHI) announced today that it has begun shipping its fourth generation of Rumble Road™ amplified stereo speakers, designed for motorcycles, all-terrain vehicles (ATVs), snowmobiles and other powersports applications. New higher-gain, integrated amplifiers and streamlined surface-mounted circuit boards translate to more volume pumped through the system’s high-end Blaupunkt™ speakers, better performance when paired with low-output MP3 players and other audio devices, and added durability.

“In the spirit of continuous improvement, we changed out some of the amplifier components of the Rumble Road speaker system – primarily to get better performance out of low-output MP3 players and other personal audio devices,” said MHI President Mauro Dresti. “As a result, the newest generation of Rumble Road stereo speakers is noticeably louder for both high- and low-output stereos.”

MHI increased its proprietary amplifier’s voltage gain by more than 60 percent – from 20 to 33. “A low-output MP3 player produces about half a volt,” Dresti explained, “so volume from these devices is lower compared with other, higher-output personal stereos that easily produce twice as much. Now, MHI’s upgraded design provides ubiquity, ensuring full-power output from any device and making MP3s sound better even at freeway speeds.”

In addition, MHI has upgraded its speaker system’s internal circuitry to surface-mounted components affixed by a local ISO9002 contract manufacturer. “Surface-mounted components reflect the latest electronics technology and add to product durability,” Dresti said. “Because surface-mounted components hug the circuit board, they are that much more likely to withstand the sustained vibration of a rumbling bike over the long haul.”

Easily installed on the handlebars of most motorcycle cruisers and ATVs, MHI’s integrated Rumble Road “Premium” speaker system works with any MP3 or other portable stereo featuring a standard mini-plug headphone jack to provide high-quality sound either on the go or while parked. The proprietary design features integrated amplifiers housed in standard spotlight enclosures enhanced with stainless steel grilles.

The “Premium” amplified system delivers powerful, clear audio response at 46 watts peak power per channel into highly efficient 4-inch Blaupunkt coaxial speakers. A non-amplified version (Rumble Road “Limited”) is available for use with existing car stereos.

The chromed Rumble Road “Premium” motorcycle speaker system retails for US $279.95. The speakers also are available in black powder-coating. A complete kit includes speakers, mounting hardware, wiring and a clear installation guide. MHI products carry a 30-day satisfaction guarantee, and a one-year warranty on parts and labor. For product options and other information, including how to order, visit www.mhinstruments.com, or call toll-free 866.713.2173; local 949.713.2173.

About MH Instruments
Founded in 1995, Southern California-based MH Instruments (MHI) designs, manufactures and distributes consumer electronics products for adventure-based applications, such as motorcycles, ATVs, snowmobiles, airplanes and boats. Visit MHI’s web site at www.mhinstruments.com for more information about the company and its products, and to see what customers have to say about their Rumble Road experiences.

Contact: Athena Fristoe, The Watermark Group Ltd., +1.626.817.6524 or +1.909.622.1975

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