(2 Pack) Sound Absorption-Diffuse Corner Bass Trap Triangle - Red

In this review of the (2 Pack) Triangle-TRI corner bass trap, the bottom line is simple: this is a targeted acoustic solution for rooms where low-frequency control matters. The unit is best for musicians, home theater owners, and studio builders who need corner-mounted absorption and diffusion without a bulky retrofit. The reviewer found the laminated MDF plate and foam construction give a clean, modern look while noticeably tightening bass response when placed in room corners, making it a practical choice for improving clarity and reducing muddiness.

Key Features

• Corner bass trapping: The triangular pyramid shape concentrates and absorbs omni-directional low frequency energy that collects in corners, improving bass definition.
• Absorption and diffusion: Combined laminated MDF plate and M1 foam provide both sound absorption and scattering across low to mid frequencies for fewer standing waves.
• Measured range: Designed to scatter and absorb from about 63Hz to 1000Hz, which addresses problematic low end and lower midrange energy in small to medium rooms.
• Room-friendly fit: At roughly 42x42x42cm the trap sits neatly in corners or can be mounted on ceilings without dominating the room visually.
• Fire safety class: Euroclass E rating on the construction materials gives an expected level of in-room safety for residential and studio use.
• Value pack: Sold in boxes of two, allowing treatment of at least one corner pair or symmetric placement for balanced results.

Who It's For

The Triangle-TRI is aimed at recording engineers, home theater hobbyists, and rehearsal spaces that need to reduce bass buildup and slap-back in corners without rebuilding walls or adding heavy, costly traps. It works well where aesthetics matter, since the red gloss plastic SCIFI finish reads as a design element instead of industrial treatment.

Those looking for maximum professional-grade bass absorption for very large rooms or broadcast control rooms should consider larger tuned traps or thicker broadband panels; likewise, buyers who require commercial fire ratings beyond Euroclass E should verify local codes before installation.

Pros & Cons

Pros

• Quality and looks: customers praise the appearance and perceived material quality, which fits modern studio or home theater decor.
• Effective low-frequency control: reduces room ring and standing waves when placed in corners, tightening bass for clearer mixes.
• Dual function: combines absorption and scattering in one unit for a more balanced acoustic response.
• Ready two-pack: packaging two units lets users treat symmetrical positions without buying singles.

Cons

• Mounting can be mixed: some users report self-adhesive tape or mounting options are inconsistent and may require additional hardware for secure installation.
• Foam feel varies: a few customers note differences in foam density, so installers who need specific firmness may want to inspect before final placement.

Specifications

Brand	ua acoustics
Model	Triangle-TRI corner bass trap (2 pack)
Dimensions	42x42x42cm (19.7x19.7x4 in)
Thickness	210mm (8.3 in)
Material	Laminated MDF (HDF) plate and M1 acoustic foam
Absorption range	Scattering 63Hz to 1000Hz, NRC 0.44
Fire class	Euroclass E

Our Verdict

The (2 Pack) Triangle-TRI corner bass traps are a sensible, good-value upgrade for smaller studios, music rooms, and home theaters that need to tame low-frequency problems without large-scale construction. They deliver noticeable bass tightening and a stylish finish, though installers should plan for secure mounting and accept some variation in foam firmness across batches.

Frequently Asked Questions

Can these be mounted on the ceiling?
Yes, the units can be mounted on walls or ceilings; ensure you use appropriate hardware for the weight and surface and check that mounting tape alone may not be sufficient.

How many units do I need for a small studio?
Common setups start with one trap in each corner behind speakers or at room corners; the two-pack covers a pair but multiple packs may be needed for full treatment.

Do they reduce bass for live instruments as well as recorded playback?
Yes, the traps target low-frequency energy generally, so they help with bass control for both live sources and playback in most small to medium rooms.