PHY-HP - Manufacturer of driver unit, cables and interconnect. Hakken - Speaker parts from Taiwan. Danish Audio ConnecT - Danish manufacturer of high end audio parts for hi-fi, and home theater. Products include stepped attenuators, balance controls, input switches, phono stages, RIAA preamplifier modules. V-Cap Audiophile Capacitors - Reference grade Teflon film and tin foil audio capacitors. Dahlquist Parts & Service - Parts, service, and upgrades from "the Original Dahlquist" staff of New York. E J Jordan Designs - Manufacturers of drivers custom designed for hi-fi system manufacturers but also for sound reinforcement, broadcasting, defense, medical and telecommunication applications. High Frame Industrial Co. - Manufacturer of loudspeaker components, including cones of various size and materials, grilles, caskets, and terminal cups. Honsound Electronics - Manufacturer and exporter of woofer, boom box, tweeter, car speaker, multimedia speaker and other car accessories. NuWay Speaker - Makes speakers components such as spiders, dust caps and speaker cones. Plitron - Designs and manufactures standard and custom toroidal transformers. Raleigh Audio - Manufacturers of vacuum tube kits for the DIY hobbyist to build a preamplifier or digital-to-analog converter with a line stage, DAC and power supply. USA. Ciare - Manufacturer of drivers for home, cars, professional and electronics parts. Italy. Tymphany HK Ltd - Premier provider of audio systems and transducers: compression, full range, passive radiators, subwoofers, tweeters and woofers. WeberVST - Amplifiers and speakers parts, audio components. Provides guide, information, reviews and industry news. Sonic Design - Provides accessories and software for loudspeakers and loudspeaker design. Sweden. Musical Concepts - Makes and distributes hi-end audio components. USA. ColdAmp - European company located in Spain that is dedicated to the manufacture and sale of hi-fi amplifier modules and switching power supplies. Foam Speaker Grilles - Manufacturing custom foam grilles such as replacement foam grilles. OEM inquiries invited.