Note: These speakers are designed specifically for car audio use and come with a kit of mounting gear such as adapter rings, grilles and additional installation hardware. This review is focused only on the performance aspect and does not consider the “install” aspect as it relates to the provided hardware.
This speaker came from my very own 2019 Honda Civic Sport (non-Touring model). Standard stereo system (no upgrade). I was curious how this would measure so I measured it.
Dennis Murphy designed the Philharmonic BMR some years back and it lit up the DIY circuit. This is a 3-way “bookshelf” (a big bookshelf) incorporating the following drive units: RAAL, 64-10 Ribbon Tweeter, BMR 2.5″ Midrange, and Scan-Speak 18W8545-1 Paper-carbon cone woofer. There are countless threads about this speaker and the design available via a simple Google search so I won’t spend my time going on about it. It is important to note, though, this speaker tested is in a different cabinet than current offerings. This shouldn’t effect the results of the test considerably (I assume the same volume and port tuning is used with the various enclosure shapes) but it is worth noting as some response differences can arise with a rounded enclosure with a flat baffle vs other designs some may come up with for their own enclosure.