Sound Absorption-Diffuse Corner Bass Trap Triangle - 2 Pack

In this review of the Triangle-TRI corner bass trap, the bottom line is simple: it is aimed at anyone seeking clearer, tighter low end in a room without drastic decor changes. The reviewer found the 2-pack triangular design effective at reducing corner energy and slap echoes while remaining visually discreet in white. Installation options are mixed among users, but the main reason to buy is its targeted reduction of low frequency build-up and flutter echo, which improves bass definition for recording studios, home theaters, and rehearsal spaces.

Key Features

• Corner bass trapping: The triangular pyramid shape traps omni-directional bass energy in corners, reducing standing waves and improving low-end clarity.
• Absorption and diffusion: Combined laminated MDF plate and foam construction provides both absorption and scattering across a broad range of frequencies.
• Low-frequency focus: Designed to absorb low, mid and high ranges with a scattering range down to 63Hz, which helps control room ring and smear.
• Room-friendly size: At 42x42x42cm with 210mm thickness, the units fit most corners without overwhelming small rooms or changing decor.
• Fire class and materials: Built from laminated MDF and M1-type foam with Euroclass E fire rating for safer indoor use.
• Two-pack convenience: Sold in boxes of two units so you can treat both left and right corners or layer treatments as needed.

Who It's For

The Triangle-TRI is best for small to medium recording studios, home theaters, music rooms, rehearsal rooms and conference areas where corner bass build-up is audible and controllable treatment is required. Anyone trying to tighten low frequency response and reduce slap-back or flutter echo will notice a practical improvement after placing these in key corners.

Those who need permanent, structural treatments or certified high fire-resistance for commercial installations should look elsewhere, and users expecting heavy-duty construction may find the foam density either just right or a bit soft depending on expectations; mounting hardware and tape quality received mixed feedback.

Pros & Cons

Pros

• Effective at reducing bass smear and standing waves in corner placements.
• Combines absorption and diffusion for controlled low- to mid-frequency behavior.
• Attractive triangular profile in white that integrates into room decor.
• Includes two units so you can treat matching corners immediately.

Cons

• Mounting options and included self-adhesive tape have mixed feedback and may require alternate mounting solutions.
• Some customers report variation in perceived foam density and sturdiness, so expectations should be managed.

Specifications

Our Verdict

The Triangle-TRI 2-pack is a practical, value-focused corner treatment for anyone needing to tame low-frequency problems without large construction work. It delivers noticeable bass tightening and reduction of slap echo in studios and home theaters, and while mounting and foam firmness have mixed user notes, the acoustic benefit and discreet white finish make it a solid choice for most room-treatment projects.

Frequently Asked Questions

Do these need special mounts?
They can be mounted with self-adhesive tape included by some sellers, but many users prefer mechanical fixings or stronger adhesive for a permanent installation.

Will they control very low bass in large rooms?
They are tuned to help from around 63Hz upward; very large rooms with deep bass issues may require additional or larger treatments.

Are they fire safe?
The product uses laminated MDF and M1-type foam and carries a Euroclass E fire rating, suitable for typical studio and home use.