Siemens

Siemens is a German engineering and electronics company founded in Berlin in 1847 by Werner von Siemens and Johann Georg Halske. With a long history in telecommunications, electrical engineering and industrial electronics, Siemens also manufactured professional audio and broadcast equipment, including amplifiers, equalisers and signal-processing systems. Its historical audio products reflect the company’s extensive experience in precision electronics and professional communications technology.

Made In Italy

Released in 1969 /

Siemens ELA 75-15 Equaliser

The Siemens ELA 75-15 is a professional analogue equaliser designed for detailed frequency correction and sound shaping in recording and audio amplification systems. Built around a modular, transistor-based architecture, the unit combines low-frequency and high-frequency shelving correction with two independently adjustable band-pass correction sections. Its cascaded active filters provide symmetrical boost and attenuation, selectable frequencies and precisely stepped correction levels. Transformer-balanced input and output stages, configurable gain and comprehensive bypass facilities make the Siemens ELA 75-15 a versatile equalisation system for studio and professional audio applications.