Adire Audio

Aiwa

Alpine

Audiobahn

AudioControl

ARC AUDIO

ATOMIC

AUDIOVOX

Autotek

Blaupunkt

Boss Audio

Boston Acoustics

Bostwick

CDT

Cerwin Vega

Clarion

Crossfire Audio

Crunch

Diamond Audio

Digital Designs (DD)

Directed Electronics (DEI)

DynAudio

Earthquake Sounds

Elemental Designs

Elevation Audio

Eclipse (Fujitsu Ten)

Focal Automobile

HiFonics

Image Dynamics

Infinity

JBL Audio

Jensen

JL Audio

JVC

Kenwood

Stillwater Designs "Kicker"

Kove Audio

Lanzar

Legacy Audio

Lightning Audio

MA Audio

MB Quart

McIntosh

Memphis

MMATS

Mobile Performance/Lauf/Paul from BA boards brand/

MTX

MSX Audio

Onyx Mobile Audio

Orion

Oz Audio

Panasonic

Phoenix Gold

Pioneer Electronics

Planet Audio

Polk Audio

Power Acoustik

Precision Power

Profile

Pyle

Pyramid

Radio Shack (Optimus)

Rainbow Car Audio

Resonant Engineering (RE)

Rockford Fosgate

Rockwood

SAS Bazooka

Sherwood

Sinfoni

Sonic FX-Scuba Guy/Doug from the BA Board

SONY XPLOD

Sound Storm Laboratories

Soundstream

Tru Technology

Us Acoustics

Us Amps

Xtant

Zapco