Kansas City, MO – January 2009 … Avlex Corporation, the name audio professionals turn to for world-class wireless technology and microphones, proudly introduces the new Superlux HD681 Semi-Open Professional Headphones. Featuring premium quality audio components paired with an ergonomic design that makes the headphones extremely comfortable, the new HD681 headphones make a terrific choice for a wide range of audio listening tasks, including use as recording studio monitors, headphones for MP3 players or video games, and computer/digital audio applications.

With excellent frequency response and crystal clear detail, the Superlux HD681 dynamic headphones employ a semi-open design that enables one to monitor the audio source with breathtaking realism without being acoustically isolated. Key to the HD681’s exceptional performance attributes are the large, 50mm dome type, neodymium diaphragms. Featuring a 10 Hz – 30 kHz frequency range and total harmonic distortion of less than 0.25%, the highly efficient HD681 headphones deliver wide dynamic range and enable one to listen for extended periods without experiencing ear fatigue.


When listening through headphones, comfort is a critical design factor and here, too, the new Superlux HD681 headphones excel. Designed as classic “cans”, the HD681’s large, circumaural, padded vinyl earpieces envelope the listener for a remarkably comfortable experience. Further, the self-adjusting headband provides the listener with a great fit and these durable headphones can even be twisted for use in single ear monitoring. At just 8.3 ounces, the Superlux HD681 headphones are lightweight and can easily be worn for extended periods.

Adding still more value to this high performance package is the HD681’s 8 foot single sided, digital grade cable and the included gold-plated 3.5mm to quarter-inch screw-on adapter. Together, they provide for generous freedom of movement and the ability to quickly and securely adapt the headphones to a multitude of audio playback sources. Shipped with a protective storage pouch, the new Superlux HD681 Semi-Open Professional Headphones make a compelling choice for countless music and audio monitoring applications.

Jack Nead, national sales manager for Avlex Corporation, commented on the new Superlux HD681 Semi-Open Professional Headphones. “The new HD681 headphones are fashioned after the classic headphones of yesteryear,” notes Nead. “They are big and comfortable-making them a top-notch choice for extended listening tasks-while delivering audiophile performance in a cost-effective package that is highly competitive in today’s market. I’m confident anyone who auditions these headphones will quickly realize the tremendous value they represent.”

The new Superlux HD681 Semi-Open Professional Headphones carry an MSRP of $49.95.

About Avlex Corporation
Avlex Corporation is a leading supplier of high quality, feature rich, and competitively priced professional audio products. The Avlex, Superlux, and MIPRO brands of microphones, wireless systems, electronics, and accessories are available through independent dealers and contractors nationwide. For additional information on Avlex Corporation, visit the company online at

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