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GR Research is a vendor of speakers, speaker kits, and drivers. GR only offers
two driver lines, Focal and their own proprietary line.
GR's proprietary drivers are all sourced overseas. All represent reasonably good
value and sound quality, although there are a few caveats as noted below. GR's
proprietary drivers include:
- The GR-T1 magentically
shielded 1" silk dome tweeter is sourced by TangBand in China. TangBand (TB)
is a well-known OEM, albeit one without a particularly stellar reputation.
Apparently GR buys TB tweeters to its own QA standards, which helps
considerably. Although few other sources of TB tweeters have been
recommended, several people have recommended the GR unit. Some have found it
particularly useful as a replacement for the Vifa D27 series, which
have QA problems of their own. My respondents report that most of the GR-T1's
they receive have had Fs values at or below spec. Those using them as
replacements for D27's have reported a much more "relaxed sound" around the
crossover region, possibly indicating better excursion capability.
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- The M-130 5" mid/bass
driver with a coated paper cone, polymer chassis, and phase plug. Like the
GR-T1, it comes with a somewhat humble pedigree, being built by Peerless
(India). Also like the GR-T1, GR has taken care to specify and select units
that make it a more attractive choice. The M-130 is also avilable in a
shielded version for HT use, the
M-130SH.
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One note, however… Peerless (India) is a complete separate company from the
Peerless in Denmark that we're most familiar with.
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