I am currently running a Sundown SA-12 D2 but might be able to trade for a Diamond D6 12 D4. Both are in custom ported boxes built to spec. I'm just wondering your opinions and experiences as well as the pros and cons of both. I'm looking to compare:
-SPL (which is more efficient and is there a noticeable difference off the same amp)
-Personal opinions if you've owned/heard both
Looking forward to the feedback. Thanks guys.