I purchased the REB and had it professionally fitted by a local luthier to my Martin 000-15M. I have a few other guitars with Fishman and Seymour Duncan amplification solutions fitted, but I have to say the REB is the best sounding and most naturalistic I have yet found. That might be due to the all Mahogany structure of the Martin, so I cannot vouch for spruce or cedar etc. However, if you want to extract the ultimate in depth from your hog, grab your self an REB. You will not be disappointed.
I wasn't very satisfied with either the mic sound or the pickup. The pickup doesn't sound very natural, it sounds quite metalic, while the mic is very boomy (depedning on the direction) and tends to get lots of feedback. Mixing them helps but in the end the sound is not very natural.
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