A rotary switch manufactured by NSF Controls is contributing to the success of live performances by some of the biggest names in the music and entertainment history, thanks to its specification in a product developed by guitar amplification specialist, Marshall Amplification plc.

Established in 1962, Marshall Amplification is widely regarded as a leading name in the manufacture of state-of-the-art guitar amplifiers. They have proved firm favourites with many of the world’s most celebrated and talented musicians, including such household names as Jimi Hendrix and Pete Townsend.

For almost a decade, NSF has supplied Marshall Amplification with a rotary switch for use in the company’s Powerbrake PB100 unit. Housed in a heavy-duty portable case, the PB100 is used to attenuate the output from the amplifier to the speakers, enabling musicians to maintain the unique Marshall sound quality while allowing full control of the sound output level. The rotary switch within the unit is used to select from 12 possible positions and provides the desired level of attenuation.

Denis Fowler, the New Product Procurement Officer at Marshall Amplification explained, "Working closely with NSF we were able to develop a rotary switch whose combination of robust construction and long term reliability are perfectly suited to an application within the demanding and high profile world of entertainment".