A:AnswerHello Fehr, thanks for your question. Marshall measures the power of a speaker by its SPL rating: a measure of its volume at 1m distance from the speaker. The Emberton III has an SPL rating of 90 dB SPL @ 1 m.
A:AnswerHi James, Marshall measures the power of our products by the SPL rating.The SPL measures the loudness of a sound, not just the power output. A higher SPL rating means a speaker can produce a louder sound for a given input power. This being said, the Emberton III has an SPL rating of 90 dB SPL @ 1 m.
