RE: Resonant Engineering,
http://www.reaudio.com (used to run one of their SEXXX subs)
eD: Elemental Designs,
http://www.elementadesigns.com (used to run one of their 16ov.2 subs)
Treo: Treo Engineering:
http://www.treoonline.com (I run their SSi subs currently)
IA: Incriminator Audio,
http://www.incriminatoraudio.com (their 20.1 amp is a *beast*)
MD: Mass Destruction,
http://www.mdcaraudio.com
AA: Ascendent Audio,
http://www.ascendentaudio.com (heard a Havoc locally - f***ing loud)
DD: Digital Designs,
http://www.ddaudio.com (9500 series = o.m.g.)
ID: Image Dynamics,
http://www.imagedynamicsusa.com (IDMAX is an amazing SQL sub)
OZ: OZ Audio,
http://www.ozaudio.com (forget the SPL sub of theirs)
Cheers,
~vR