good cheap SQ subs

[denim 5,000+ posts]

RL-p or RL-i from soundsplinter or look for a used Stereo Integrity D2

 

[Ignatowski 5,000+ posts]

CM3s do well,75.00 on ebay

added one to my GFs ride,freeking pounds

best 75.00 sub I ever heard -

 

[boomzabit 10+ year member]

Look at alpine type E's or maybe even some type S's

 

[B_Master_Flash 10+ year member]

Phoenix gold Titanium are in the same price range & Sound pretty good in my experience