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Home News

Western Electric 91E integrated tube amplifier

Marco Lisi by Marco Lisi
July 13, 2026
in News
Reading Time: 2 mins read
western-electric-91E-integrated-tube-amplifier

Time to meet an ambitious integrated tube amplifier, inspired by its famous predecessor, the Western Electric 91A. Single-ended sound just got better with double the power. The complete SE amplifier design bas been rethought. Developed over five years, the Western Electric 91E’s circuitry intelligently steeds the parallel feed constant current source or SCCS. This allows the tubes to deliver more than double their previously rated output of 7-8 Watts.

western-electric-91E-integrated-tube-amplifier-set

Tube history

In 1936 the 91A is commissioned by Western Electric under its film sound subsidiary company Electrical Research Products Incorporated (ERPI). The 300B is born in 1938. Almost identical to its predecessor the 300A, the 300B arrives at a time when tube amplifier technology was transforming the world of sound, from radio broadcasting and radar technology, to Hollywood movies and telephony. Over 150 years after the birth of Western Electric, in 2018, a new manufacturing facility is established. Side-by-side with 300B production, an amplifier research and design laboratory is set up for the completion of the 91E Integrated Amplifier project.

western-electric-91E-integrated-tube-amplifier-livingroom

The 91E is the result of years of research and effort by Western Electric engineers to provide listeners with the absolute finest in single-ended tube sound.

Charles Whitener – Western Electric president

 

western-electric-91E-integrated-tube-amplifier-closeup

More details on the Western Electric 91E.
Visit the Western Electric website.

Tags: Integrated amplifiersWestern Electric
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Marco Lisi

Marco Lisi

Publisher

Marco Lisi is the publisher of Best of High End, part of AV Concepts BV. His path into audio started early: as a teenager he was drawn into the world of free radio, presenting shows and living immersed in music every day. In his early twenties he ran his own production studio for five years, creating jingles and commercials — hands-on training in sound design, pro-audio workflows, and critical listening through studio monitors that still shapes how he evaluates gear today. He also spent years DJing in clubs before moving into publishing, first at two earlier online magazines before founding Best of High End. His hi-fi and home cinema passion was inherited from his father, an inveterate system-swapper. Marco's first setup — a confirmation gift — paired AKAI separates with entry-level Bowers & Wilkins speakers, a brand he stayed loyal to for years as his system grew from stereo into full surround and home cinema. Like many enthusiasts, he went through an extended "audiophile" phase chasing the next upgrade, before settling into a more grounded view: gear as a means to enjoy music and film, not an end in itself. Years of critical listening have given him a well-trained ear — the ability to characterize a system or pinpoint a change in the chain quickly and accurately. Just as important, his teaching background (a Belgian "regent" degree in Dutch language) gives him the tools to translate those listening impressions into clear, readable writing.

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