MILWAUKEE, WI -- (Marketwired) -- 10/21/14 -- Koss® Corporation (NASDAQ: KOSS), the U.S. based high-fidelity Stereophone manufacturer and inventor of the world's first SP3 Stereophone in 1958, announced the release of the evolutionary SP Series.

"With the new SP Series, we went back to the basics established by my father, John C. Koss, in 1958 when he introduced the world's first SP3 Stereophone," said Michael J. Koss, President and CEO of Koss Corporation. "The new SP Series Headphones are designed for people who cherish the inspiration a great piece of music brings."

The SP540 and SP330 both feature the natural fitting "D-profile" earcup first featured on the ergonomically designed Koss Pro4AAA. The D-profile mimics the shape of the ear, creating an ideal seal for the most consistent sound reproduction and an incredibly natural fit for extended personal listening sessions.

The SP540 and SP330 both feature outer earcups reinforced by anodized aluminum and insert-molded metal hinges, which provide strength in areas where other headphones often fail. The advanced headband design allows for both size and pressure adjustment. Each headband contains soft memory foam wrapped in breathable fabric for extended comfort. Both products have a detachable cord and fold flat into a slim travel case for easy portability.

"The team pored over our more than 56 years of archives to find the best personal listening concepts we have ever used," said Koss. "They combined their findings with several new technological advancements to create the SP540 and SP330, which are now the most evolutionary products for personal listening on the market."

SP540 Full-Size, Over-Ear Headphones
The full-sized, over-ear SP540 features the new Koss PLX40 dynamic element, tuned specifically for personal listening.

The D-profile, circumaural design of the SP540 is highlighted by a new contour seal with asymmetrical foam that gradually increases in density near the back and bottom of the cups to balance the pressure around the ear, resulting in a perfect acoustical seal and a balanced fit for comfort. The cushions are comprised of slow recovery memory foam, premium acoustical fabric and protein leather.

The new SP540 Full-Size, Over-Ear Headphones ship immediately and are available at Koss.com and Amazon.com, with a choice of regular retail packaging or Amazon-certified Frustration Free Packaging (FFP), for $149.99.

SP330 On-Ear Headphones
The slim, on-ear SP330 features the all-new Koss PLX30 dynamic elements, tuned for personal listening.

The supra-aural SP330 headphones feature an all-new, angled on-ear D-profile for an extremely accurate fit. The ear-shaped foam cushions, which are crafted of memory foam, acoustical fabric and protein leather, create pillow-like comfort on the ears to produce a premier audio coupling experience.

The SP330 On-Ear Headphones ship immediately and are available at Koss.com and Amazon.com, with a choice of regular retail packaging or Amazon-certified Frustration Free Packaging (FFP), for $129.99.

For more information, including an inside look at the development of the SP Series, visit: newproducts.koss.com

Koss Corporation: The Original American Stereophone Company, since 1958
Koss Corporation markets a complete line of high-fidelity headphones, speaker-phones, computer headsets, telecommunications headsets, active noise canceling headphones, wireless headphones, wireless speakers and compact disc recordings of American Symphony Orchestras on the Koss Classics label. For more information, follow Koss on Twitter @KossHeadphones, on Facebook at Facebook.com/Koss, or at Koss.com

For More Information:
Nicole Nelson
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Source: Koss Corporation

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