bass_lover1 10+ year member
Metal Head \m/ \m/
Audioholic my only personal experience was when i had a buddy who had six 10"IDQ about 2 years ago and they really did not hit for six 10s it might of been the way he had it set up but i was not impressed with his spl especially with six 10" subs
Well, since you're looking for a "SQ sub on a budget," why are you recalling an SPL setup that year heard 2 years ago?
Never heard an IDQ personally, but they do seem to always get great reviews.
Have you considered the Stereo Integrity Mag v4?