Product OverviewTopperfo® Micro - Invisible SolutionsThe newest innovation in acoustic woods, Micro uses 0.5mm diameter holes to allow for sound absorption. The quality is far beyond the competition and the acoustic performance is second to none.Topakustik® - Grooved SolutionsA clean, linear approach to acoustics. Profiles are created with 2, 3, or 4mm grooves with different spacing options.Topperfo® - Perforated SolutionsA basic and time tested approach to acoustics. Profiles are created with either one single diameter hole or with dual-diameter solutions. Various hole sizes, spacings, and arrangements are possible.