The anechoic -6dB point is useful to know when considering what LF the speaker will offer in your room when the effect of room gain is added. Sometimes, companies will offer low end response in a "typical" room but without stating the room dimensions. See: https://www.svsound.com/blogs/subwoofer-setup-and-tuning/what-is-subwoofer-room-gain? |
At best it can tell you how much air the speaker can move. Audiophiles rely on this spec way too much IMHO, especially when deciding whether or not to add a subwoofer and how to configure one. The room makes liars out of all of the anechoic/quasi-anechoic bass measurements. IMHO, measuring dynamic compression is of more value for most of us, and the one publication that used to do it (SoundStage) I believe stopped publishing these measurements. There’s no substitute for listening, and measuring in the room. |
