High End 2015 TABlog
Silbatone brings a pair of Western Electric theatre speakers from its enviable collection to Munich every year, and this time it was the turn of a model from 1933. This largely wooden horn speaker was originally developed for triode amplifiers with a 2-watt output. . .
. . . so Silbatones engineers built a suitably low-powered amp for the job. The RP-6900 (no pricing available) is a single-ended design that uses the scarce 6900 tube that was developed for intercontinental ballistic missiles in the 1950s, so quite a rugged piece of glass! This amplifier produces a mere 0.8-watts per channel, yet that proved to be sufficient to deliver a room-filling sound from the vintage horns. That said, when Silbatone moved up to a 5-watt single-ended amp, things got a whole lot more interesting. There was scale and grip; with a speaker that has over 100dB sensitivity, 5 watts are enough to deliver Led Zeppelin in goose-bump-inducing style.
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