Acoustic Treatment · Mid-range
Acoustimac Low Frequency Bass Trap DMD 4 ft x 2 ft x 4 in, Black Corner
A 4 in thick mineral wool trap with a trapezoid back that sits flat in a wall corner, which is where most rooms need bass control first. Buy a pair for the front corners.
- 48 x 24 x 4 in, corner cut
- Mineral wool core (Rockwool)
- Avg NRC 0.95+ (mfr)
- DMD fabric, USA made, 22 lb
Corners are where bass builds up first, and a 4 in mineral wool trap with a trapezoid back is the cheapest way to treat them without building anything. Acoustimac publishes its lab data and makes the trap in the USA, which is rare at this price.
Watch out: Only 4 in thick, so it trims the mid-bass and upper bass but does little below about 80 Hz.
Pros
- Corner-cut back needs no bracket
- Published NRC test data
- Fabric and color options
Cons
- Too thin for real sub-80 Hz control
- Core spec differs between the Amazon and Acoustimac pages
- Sold as a single, so budget for a pair
Specifications
| Type | Corner bass trap |
|---|---|
| Size | 48 x 24 in |
| Thickness | 4 in |
| Core | Mineral wool |
| NRC | 0.95+ average (manufacturer) |
| Mounting | Corner-cut back sits flat in a wall corner |
| Pack size | 1 |
Specs come from manufacturer documentation and published reviews; check the retailer listing for the current revision.