Manufacturers links – Gp ... G9

GP Industries
Mini conglomerate based in Hong Kong, manufactures all kinds of automotive electronics under it's own name and as an OEM including car hi-fi and has also a small lineup of mid priced home, hi-fi and pro audio, but noticeably also owns a host of brands and companies in the audio industry proper such as GP Acoustics (below).

GP Acoustics
British manufacturer that sells home hi-fi & AV loudspekers, professional loudspekers and drivers under the Celestion brand and mid/high end hi-fi and AV loudspeakers under the KEF name.
Distribution: In Romania by Lotus Telecom. KEF products are distributed in Canada by Lenbrook Industries, in Chile by Ak-iTEC and in the Czech Republic by Hi-Fi Store while Celestion branded products are distributed in Belgium by I. T. C. and in France by Algam
Homepage: - KEF homepage - Celestion homepage.
GP Acoustics, Eccleston Road,Tovil, Maidstone, Kent, ME15 6QP, U.K.
Tel: + 44 (0) 1622 672261. Fax: + 44 (0) 1622 750653

GPX Inc.
A trading company that supplies low budget audio and other CE products under a variety of trademarks including Yorx, the company used to be a subsidiary of Hagemeyer N.V. but went independent in 2004 when the management team lead a buyout.

Italian maker of high end valve amplifiers.
Distributed in Greece by Music Lover, in the UK by UKD, in Holland by Analogue Audio and in Hungary by Magic Sound.

Finnish manufacturer of open baffle loudspeakers, highly regarded in their field.
Distributed in Norway by P.M. Audio and in the USA by May Audio Marketing

Gradiente Eletrônica S/A
Brazilian manufacturer of a wide range of AV and CE products, the company has a long and distinguished history in the audio business but is relatievly unknown in the west. Bought the consumer electronic business of Telefunken from Thomson in 1989 and had earlier bought Garrard.

US based manufacturer of headphones and gramophone cartridges in the low and mid end. Has a cult following in the USA.
Distribution in Bulgaria by Top Audio Video Design, in the Czech Republic by Finale Audio, in Denmark by Tekni-Fi, in Poland by Audio System, in Slovenia handled by Intek, in Spain by Pleyte Audio and in the UK by Mantra Audio.

Graham Engineering
A small US comany that makes tonearms.
Distributed in Canada by Tri-Cell, in China, Hong Kong and Macau by Roksan Trading, in France by Acoustic Precision Diffusion, in Holland by Dynamic Solutions, in Indonesia by Ultimate Audio Video, in Japan by Stella Inc., in Norway by Audioroyal, in the UK by Audio Reference and in the USA by Musical Surroundings.
Graham Engineering Inc., 25M Olympia Ave., Woburn, MA 01801, USA.
Tel: +781 932 8777. Fax: +781 932 8782. Email: info at

Graham Nalty
UK based gent that sells mid and high end cables and interconnects, trades using the Black Rhodium brand.
Distribution: In China, Hong Kong & Macau by Audio Access (Hong Kong), in Holland by YN Audio and in Singapore by Eighteen 77
Homepage: .
Black Rhodium, 6 Derwent Business Centre, Clarke Street, Derby, Derbyshire DE1 2BU, United Kingdom.
Tel: +44 (0)1332 342233. Fax: +44 (0)1332 342373. E-Mail: info [at)

Graham Slee Projects

British company that manufactures high end interconnects alongside more keenly priced gramophone pre-amps and headphone amplifiers, the latter are sold fully built under the company name and in kit form under the DAK brand. Company originally founded in 2005 but owner had run it as a sole trader under the same name for a few years beforehand.
Distribution: In Canada by Planet of Sound Hifi, in Monaco by Sound Galleries, in Russia & the Ukraine by English Sound Ltd. and in the UK by HiAudio.
Homepage: .
Graham Slee Projects Ltd., 1 Monks Way, Monk Bretton, Barnsley S71 2JD, UK.
Tel: +44 (0) 1909 568739, +44 (0) 7947 107188 and +44 (0) 1226 244908. E-Mail: \at/

Grand East Enterprices
Taiwanese loudspeaker manufacturer, makes anything from multimedia units through A/V and hi-fi boxes to PA speakers.

Grand Prix Audio
Manufactures hi-fi furniture, loudspeaker stands and suchlike.
Distributed in Australia and New Zealand by Reference Audio Visual, in Japan by TEAC, in Singapore by Audio Note Singapore, in South Korea by Sonoris High End Audio & Video, in Spain by Signo Filarmonía and in the UK by Symmetry

Chinese manufacturer of projection screens, these include screens for home usage, both models intended to be mounted onto walls and other fastenings and manual & motorised models intended to be built into furniture. In addition the company has a range of screens intended for educational, industrial and professional video usage.
Distribution: In Malaysia by Acoustic & Lighting System
Homepage: .
Grandview Crystal Screen Co. Ltd., Federal Industry Zone No.363, Yushan West Road, Shiqiao, Panyu District, Guangzhou, Guangdong, China.
Tel: +86 20 84899499. Fax: +86 20 84803343 and +86 20 84805299. E-Mail?info [at]

Granite (Thailand) See --> Musical Design Labs

Granite Audio (USA)
USA based company that makes valve amplifiers, loudspakers, CD players and cables. Company formerly known as Broadway Cabinetworks, Ltd..
Distributed in the USA by Nat Distribution.
Granite Audio, 824 South Mill Avenue, #88, Tempe, Arizona 85281, USA.
Phone: +(480) 829 8374. Fax: +(480) 968 0159. Email: info at

Gratia See --> GT Electronics

Green Mountain Audio
USA based loudspeaker manufacturer.
Distribution: In Italy by ProAudio Italia and in Sweden by Audio Concept
Homepage: .
Green Mountain Audio, Inc., 3333-D North El Paso Street, Colorado Springs, CO 80907-5476, USA.
Tel: +1 719 636 2500.

German manufacturer of high end amplification and loudspeakers.
Greenwall, Obere Waessere 1, D-72764 Reutlingen, Germany.
Phone: +49 7121 370736. Fax: +49 7121 321372.

Greybeard Loudspeakers
USA based loudspeaker manufacturer.

Griffin Technology
USA based maker of protective skins and cases for personal audio devices.
Distribution: In Switzerland by Audio iN
Homepage: .
Griffin Technology, 2030 Lindell Avenue, Nashville, TN 37203, USA.
Tel: 1 800 208 5996 (Toll free, USA and Canada only). Fax: +1 615 367 6468.

Grimm Audio
Dutch company that manufactures high end hi-fi and professional audio devices and software, including loudspeakers, cables, master clocks, microphone power supplies and so on.
Distribution: In China and Hong Kong by Audio Exotics, in the UK by Timestep and in the USA by Grace Design
Homepage: .
Grimm Audio, Strijpsestraat 94, 5616 GS Eindhoven, Holland.
Tel: +31 40 213 1562. E-Mail: info:at:

Groneberg (Cablles & power distributors) See --> Andreas Christian Groneberg

Groove Tubes
US manufacturer of valves and valve products like amps and microphones, mostly intended for the musican and the studio market but an amp or 2 has been known to be sold in the hi-fi market.
Distributed in Japan by Continental Far East

GR Research
USA based, primarily a manufacturer of loudspeakers and related accessories but it also has a small line of valve amplification sold under the Dodd Audio name, this company also handled the production design of the Epiphany Audio loudspeaker lineup.
Distributed in Hong Kong by Lieder International.
GR Research Inc., 910 North Jackson, Iowa Park, TX 76367, USA.
Tel : +940 592 3400..

German manufacturer of high end amplification, CD players and speakers.

Grundig (Australasia & North America) See --> Harvard International (Australia & NZ) or Etón (USA/Canada radios only)

Danish high end, full line maker. Some of the better looking products in the hi-fi world, note that the company handles much of the European distribution directly from Danmark so you shuld contact them directly for a local dealer if a specific distributor is not listed here below.
Distributed in Germany, Austria and Switzerland by Audioplan in Greece by Music Lover and in Hong Kong by Audio Supplies Company.
Gryphon Audio Designs, Industrivej 9, 8680 Ry, Danmark.
Phone: +(45) 86891200. Fax: +(45) 86891277. Email: sales at

GT Electronics
Korean manufacturer of mid/high end audio and car audio products that they sell under their own name and using the Nobile and Gratia brands, also designs and manufactures product for a variety of British high end makers.

Guangdong Takstar Electronic Co.
Chinese manufacurer of transducers such as microphones, headphones and related products, is mainly an OEM but also sells their products under their own Takstar trademark..

Guangdong Xingbao See --> Xingbao

Guangzhou baiyun ZunBao
Chinese low and mid end loudspeaker manufacturer that more or less specialises in AV loudspekaer systems although they do manufacture hi-fi and car audio speakers as well along with a small lineup of AV electronics. Operates primarily as an OEM but uses tradmarks such as Polocko, New Jomo and Aosibao in its home market.

Guangzhou CHPO Electronic Co. Ltd.
Large Chinese manufacturer of AV and audio products, high end hi-fi products sold under the Qunpu while AV and professional audio products are sold under the CHPO brand. Also active as an OEM for a number of western high end companies.
Homepage: Qinpu products are distributed in Canada by Charisma Audio and in the USA by Hawaii Audio. CHPO products are distributed in Thailand by The Elegance Sound.
GuangZhou CHPO Electronic Co. Ltd., 65A Jixlang Road, Luoxl New City, Panyu, Guangzhou 511431, China.

Guang Zhou ETKG Co.

Chinese company, sells high end turntables, amplifiers, CD players and record cleaning machines under the Hanss Acoustics brand and hi-fi furniture and accessories such as loudspeaker and TV stands and fasteners, projection screens, power filters and hi-fi racks under the ETKG name.
Distribution: Hanss products are distributed in Bulgaria by Top Audio Video Design, in Greece by Vassilopoulos Bros. and in Canada and the USA by VMAX Services except turntables that are distributed in the USA by The Lotus Group
Homepage: -- Hanss Acoustics homepage.
Guang Zhou Etkg Co., Ltd, Room 2901, Block A3, 275 Xi Que Street, Hudida Road, Liwan District, Guang Zhou, Guangdong Province, China
Tel: +86 (0)20 81155136 and +86 13825162008. Fax: +86 (0)20 81155196. E-Mail: 398 /at/

Gurtner See --> J. P. Gurtner

Guru Pro Audio
Swedish company that manufactures high end loudspeakers and monitors for home hi-fi, AV and recording studio usage, their name is usually shortened to just Guru Audio by the companies that sell their products to the home markets.
Distribution: In Indonesia by Ultimate Audio Video and in Italy by Hi-Fi United
Homepage: .
Guru Pro Audio, Svetsgränd 11, 781 72 Borlänge, Sweden.
Tel: +46 (0)8 55 92 4010 and +46 (0)8 55 92 4011. Fax: +46 (0)8 55 11 3445.

Canadian manufacturer of cables and interconnects.
Distributed in Canada by Liberty Trading, in the USA by May Audio Marketing, in Brazil by CD Audiophile Shop, in Australia by DFS Audio, in Malaysia by MY Audio and in the UK by Adderstone.
GutWire Audio Cables, 9019 Bayview Ave., Suite 2B-183, Richmond Hill, ON L4B 3M6, Canada.
Tel: +905 947 8410. Fax: +905 947 8736. E-Mail: gutwire at

Guy Hammel

USA based gent that manufactures of high end passive and active preamplifiers under the Placette Audio brand, these differ from the usual Passive pre-amplifiers and most active pre-amps as well in that they can only be used by remote control and do not even have a volume knob.
Guy Hammel, 682 S Granite Way, Boise, ID 83712, USA.
Tel: +1 208 863 1089 or +1 208 342 6141. E-Mail: placete ^at^

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The site was last compiled on Sun Nov 10 2013 at 9:15:00am