The Hi-Fi Atlas
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Loudspeakers / USA

GR-Research

GR-Research develops speaker kits, proprietary drivers and crossover components in Texas. It also offers loudspeaker design and upgrade services for independent builders.

Design & approach

GR-Research supplies speaker kits, proprietary drivers, crossover parts and upgrade packages, and also offers design services. This makes it relevant to venues whose cabinets are assembled or finished locally. The acoustic design and the physical cabinet build can have different authors, so those contributions are kept separate in our installation credits.

Maker background & design sources ↗

Equipment index

Products in the rooms

Browse all GR-Research equipment

Venue equipment records, including their original model uncertainties. Shared-system entries retain the full recorded context.

From the maker’s world.

Products, process and directly attributed installations.

Product video / Donnie Mulligan

GR Research X-CS Encore Speaker Build part 2

A directly attributed product, design or installation film. The original publisher is credited below.

Hear it in the rooms.

Equipment, commissions and collaborations.

Cali / Colombia

Bonsai HiFi ↗

Equipment in use

Bonsai HiFi lists GR-Research in its loudspeakers setup. The equipment details below reflect the venue record.

  • Main speakers: X-CS Encore · sealed enclosure; two M-165 woofers; nominal 8 Ω; rated 90 dB sensitivity

Inside the system

Bonsai’s signal chain puts the selector at the centre: the Technics decks feed the ARS Model 9900, while the GR-Research X-CS Encore speakers reproduce the main programme through the currently listed Sansui BA-2000. The sealed main cabinets and separate bass system allow the upper-bass and midrange presentation to be considered separately from the room’s deeper bass demands.

Read the system story ↗

Further reading