W7
9500
Treo SSX
RE XXX
ED A version 2
Eclipse TI
Stryke HE
Diamond TDX
Lambda TDX Apollo
JBL GTI
Orion H2
Adire Brahma
Adire Tumult
Adire Sadhara
Just a small list of very good subs.
Steeda,
W7, Brahma and TDX were designed as SQ subs that happen to also get very loud.