Monoprice Polypropylene 2-way In-Wall Speakers
I recently purchased a set of the Monoprice Polyprop 2.5 way in-wall speakers to use in my garage. I chose this particular speakers because polypropylene is more tolerant of the garage environment in the long term. Since there are no real objective measurements on these speakers, I thought it worthwhile to pursue and provide them myself for those who may be curious about their real performance. Therefore, the following will be a brief objective review on the performance of the speaker as a set, focusing on linear distortion and non-linear distortion.
Note on test setup:
In-wall speakers are typically installed in a manner that results in the speaker being crowded by insulation. All of my measurements are done on a flat, open baffle to emulate that of what is the industry standard. This allows you to view the data on its own without worry of how your particular insulation will effect the results if compared to another speaker or raw driver's results. Evaluate this on its own. While everyone's experience will vary from installation to installation, you can be sure that evaluating the speakers' performance on their own using this method will permit you to draw reasonable and (most importantly) meaningful conclusions as to the performance of the speaker.
These speakers are distributed and sold by Monoprice.com. The product details can be found here:
6-1/2 Inches Polypropylene 2-Way In-Wall Speakers - $53.13 Each (2-9 speakers)
Worth noting, in my opinion are the following:
- The tweeter is positionable. You can move the tweeter and aim it pretty freely within it's housing so you can direct the sound to your choosing.
- The overall size is pretty small. I've played around with a few in-wall speakers and when these showed up, they were smaller than what I had figured.
- Installation is really, really easy.
- These cannot be flush mounted in the wall. Furthermore, the edge of the trim ring is raised approximately 0.175 inches which can cause some higher frequency diffraction. Ideally, you'd want the speakers to be entirely flush with the wall/baffle so there is no edge diffraction causing filtering effects.