Auralex 4" Studiofoam Wedges
are ideal for use in medium to large spaces such as concert halls, sports halls, churches etc., as well as for applications where maximum acoustic absorption is required (speaker booths, forensic laboratories, mastering studios).
4" Studiofoam Wedges provide three times the low frequency absorption of a 2" Studiofoam and can treat even the worst acoustic anomalies in a room. In many cases, using 4" Studiofoam can even eliminate the need for additional bass traps.
Please note that there may be color deviations due to production, which are no reason for complaint.