144th AES CONVENTION Audio Applications Forum Session AAF02: Mains to Acoustic Efficiency

AES Milan 2018
Audio Applications Forum Session AAF02

Friday, May 25, 12:30 — 13:30 (Arena 1)


AAF02 - Mains to Acoustic Efficiency

Claudio Lastrucci, Powersoft S.p.a. - Scandicci (FI), Italy

A case study related to Power requirements to feed a subwoofer cabinet at high levels is pursued. Standardized signals and program audio signals are applied and results are directly measured on real devices.
Measurements on true power input, true power output, and overall efficiency in the amplification chain has been addressed including different amplification topologies. As a result, surprising high overall mains input to acoustic output chain efficiency is evidenced in the specific, usable, passband of the speaker.

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