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July 2023
GR Research is one of the most trusted companies I know of, if your looking for expert advice on making your speaker/s sound and perform to their best. Danny has loads of experience and is always willing to help. Great experience.
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February 2022
I’m very happy with the Klipsch RP600m upgrade kit I purchased from GR-research.
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January 2022
Dan was very helpful and willing to give valuable advice with regards to speaker building ! You meet someone like this in the industry once in a while. Such a great guy ! Highly Rated !!
