As many of you probably know, I've been a Triad dealer for over 17 years, and to me, there's no better in-wall speaker manufacturer. Triad's feature significant internal bracing with sound deadening materials inside the cabinet. Also, all of the in-wall speakers they make here in the U.S. have sealed cabinets.
In addition, Triad speakers within a series (Bronze, Silver, Gold etc) are designed to sound the same -- cabinet characteristics, driver placement, and crossovers are all adjusted to make each speaker sonically identical. So, for example, InRoom, InWall, OnWall, and even InCeiling speakers should match one another acoustically.
The company hand builds speakers in just about every configuration you can imagine. They will even color match the speakers and grills to match the paint on your walls. In addition to InRoom speakers, Triad has In-Wall and angled InCeiling speakers and subwoofers that work amazingly well for spaces in which you have no floor space, or when you wish to hide the speakers from view. The company has speakers in many different price ranges, starting at $300 per speaker.
While not a household name, Triad is a favorite of custom installers and has won numerous industry awards. The company is also a prototype partner for Dolby, helping to design speaker systems for immersive audio. Most recently, Triad Gold Monitor speakers won Best of Show at the 2019 CEDIA Expo in Denver. How Triad's Are Built: