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Philharmonic BMR Bookshelf Speaker Review





YouTube Video Review version:





Intro

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.

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