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diffuse the sound at these points. Soft furnishings, rugs and acoustic panels can help deaden a room, but this can also go too far. Full absorption at the first reflection point can made a room sound dead, while a diffuser scatters the sound for a more realistically lively result.

LET’S TALK HEARING Another fact that should be noted: the human ear has been optimised to hear sounds between frequencies of 2kHz and 5kHz (even more specifically between 3.5kHz and 4kHz). You can explain this by pointing at the physical size of the

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Australian INCAR magazine  

12V tests, tips & techniques: three stunning custom car installs + the EISA Incar Awards

Australian INCAR magazine  

12V tests, tips & techniques: three stunning custom car installs + the EISA Incar Awards

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