65amps, A Designs, Adam, AKG, Allen & Heath, Alvarez, American Audio, American DJ, Ampeg, Antoine Courtois Paris, Aphex, Apple, Apogee, ART, Audio-Technica, Audix, Avalon, BAM, Behringer, Besson, Bixonic, Black Cat, Blackheart, Blue, Besson, Bogner, BOSE, Boss, Breedlove, Brio, BSS, Buffet-Crampon, Carl Martin, Casio, Cerwin-Vega, Chandler Limited, Chauvet, Cleartone, Cloud, Conn, Cordoba Music Group, Courtois, Crate, Crown, Cusak, Daking, Dangerous Music, dbx, Death By Audio, Dean, Diamond, DigiTech, DLS, Drawmer, Drum Workshop, Inc. (DW), EBS, Eden, Edirol, Electro-Harmonix, Electro-Voice, Eminence, EMMA, EMG, Empirical Labs, Eminence, Empress, Engl, Epiphone, ESP, Euphonix, Eventide, EVH, Fender, Fishman, Focusrite, Fox, Fuchs, Fulltone, Furman, Gator, Gemeinhardt, Getzen, Gibson USA, Gibson Custom, GNI, Godlyke, Golden Age Project, Grace Design, Gretsch, Guild, Guyatone, Hao, Harden, Hercules, HHB, Ibanez, ISP Technologies, J Puchner, Jackson, JBL, Jet City Amplifiers, Jupiter, K&M, Kanstul, Kawai, Keeley, Keilwerth, Koll Guitars, Korg, Kramer, KRK, Kush Audio, Langevin, Lexicon, Line 6, LovePedal, Ludwig, Luna, Mackie, Mad Professor, Malekko, Manley, Marshall, Martin, Maxon, Meinl, Meinl Weston, Mesa Boogie, Millennia, Miraphone, Mogami, Mojave Audio, Moog, Music Man, Music XPC, N-Tune, Neve, Novation, NS Design, Option 5, Ovation, P. Mauriat, Pacific Drums & Percussion (PDP), Parker, Peavey, Pelonis Sound, Pigtronix, Pioneer, PreSonus, Propellerhead, PRS, QSC, Radial, Randall, Rane, Reunion Blues, Rickenbacker, Rivera, RME, Rode, Roland, Royer, Rupert Neve Designs, Schecter Guitar Research, Schreiber, Schroeder, Selmer, Selmer Paris, Sennheiser, Serato, Shure, SKB, Solid State Logic, Soundcraft, Squier, Stanton, Steinberg, Steinberger, Stephanhouser, Sterling by MusicMan, Summit Audio, Sweet Sound, SWR, Takamine, Tama, Tapco, Taylor, Tech 21, Telefunken, Toadworks, Tobias, Tone King, Tortuga, Traveler Guitar, Traynor, TREX, True Systems, Tube-Tech, Two Rock, Ultimate Support, Universal Audio, Vestax, VOX, W.Nirschl, Washburn, Weber Speakers, Weril, Xotic, Yamaha, Yamaha Band & Orchestra, Z Vex Effects.
Those are all the brands that have excluded themselves from Guitar Center's 15% off coupon.
I'm trying to see if there are any companies that haven't opted out (to see if this isn't an entirely worthless coupon) and I cannot think of any.
Coupon and Offer Exclusions | GuitarCenter.com
Yeah, it is pretty stupid. I guess you can buy some no-name strings, or a capo.