Brand Exclusions:
A Designs
Access
Acoustic
ADAM Audio
Akai Professional
AKG
Alesis
Allen & Heath
Alvarez
American Audio
American DJ
Ampeg
AMT Electronics
Aphex
Apogee
Apple
ART
Ashly Audio
Astatic by CAD
Audio-Technica
Audix
Auralex
Avalon
Aviom
B-52
Basslines
B-Band
Behringer
Bixonic
Blackheart
Blue
Blue Sky
Bogner
Bose
Boss
BSS Audio
CAD
Carl Martin
Casio
Celestion
Cerwin-Vega
Chandler Limited
Charvel
Chauvet
Chunk Systems
Cleartone
CME
Crate
Crest Audio
Crown
Daking
Dave Smith Instruments
DBX
Dean
Denon
Digidesign
DigiTech
Dobro
DOD
Drawmer
Dunlop
DW
Dynaudio Acoustics
Earthworks
Ebtech
Edirol
Egnater
Electro-Voice
Eliminator Lighting
EMG
Eminence
Emma Electronic
Empirical Labs
ENGL
Epiphone
ESP
Euphonix

Normandy Guitars
ESP
Event
Eventide
EVH
Fender
Fishman
Focusrite
Fostex
Fulltone
Furman
Galaxy Audio
Gator
Gemini
Gibson
Gibson Acoustic
Gibson Bluegrass
Gibson Custom
Gibson Electric
Gibson Memphis
Gig-FX
Godlyke
Grace Design
Gretsch Drums
Gretsch Guitars
Guild
Guitar Hero
Guyatone
HAO
Heil Sound
Hercules
HHB
Hiwatt
Ibanez
IK Multimedia
iKey Audio
ISP Technologies
Jackson
JBL
Kawai
Keeley
Kluson
Korg
Kramer
KRK
Kurzweil
Lab Gruppen
Laguna
Lehle
Lexicon
Line 6
LP (Latin Percussion)
LR Baggs
Mackie
Mapex
Marantz
Markbass
Marshall
Martin
M-Audio
Maxon
Meinl
Mesa Boogie
MI Audio
Midas
Millennia
Mogami
Mojave Audio
Monster Cable
Monster Power
Moog
Morley
Motion Sound
Music XPC
Musician Sound Design
MXR
Neumann

Novation
N-Tune
Numark
Ovation
Pearl
Peavey
Pedal Train
Peterson
Pigtronix
Pioneer
Presonus
Primacoustic
Propellerhead
PRS
QSC
Radial
Rane
Raven
Reunion Blues
Rickenbacker
Rivera
Rock Band
Rocktron
Roc-N-Soc
Rode Microphones
Roland
Royer
Rupert Neve Designs
Sabian
Sample Logic
Sanctuary
Schecter Guitar Research
Sennheiser
Seymour Duncan
Shure
SKB
SMPro Audio
Softube
Solid State Logic
Sony
Soundcraft
Squier
Stagg
Stanton
Steinberg
Steinberger
Sterling by MusicMan
Summit Audio
SWR
Takamine
Tama
Tannoy
Tapco
Taylor
TC Electronic
TC Helicon
Tech 21
Telefunken
Telex
Tobias
Tone Pros
ToneWorks
Traynor
True Systems
Tube-Tech
Ultimate Support
Universal Audio
UREI
Vestax
Visual Sound
Vox
Waldorf
Wallander Instruments
Weber Speakers
Yamaha
Z.Vex Effects
Zildjian