Harman International
Harman Kardon
JBL
Soundcraft
AKG (company)
Lexicon (company)
Revel Audio
Mark Levinson Audio Systems
Crown International
A&R Cambridge Ltd
dbx (company)
Altec Lansing
Loudspeaker manufacturer
infinityspeakers.com
Infinity Systems is an American manufacturer of loudspeakers founded in Los Angeles in 1968 and headquartered in Stamford, Connecticut. Wikipedia