I’ve been doing car audio for about 20 to 25 years and I am very impressed with the subwoofers. I used to have JL audio shallow mount TW0 10 inch subs in my .45 cu ft enclosures in my Ford Maverick and these NVX Y-Series 10” subs blow them out of the water on the same amplifier in the same enclosures. These NVX have better SQ AND much better SPL. With only .45 cu ft of airspace, I spent HOURS AND HOURS searching the internet for something that would meet my needs. I’m so happy I came across these subs and have already sold my JLs to cover the cost of these plus some extra money in my pocket. The JLs TW0-10D2 were $400 each new, which is totally insane and I won’t waste my dollars on JL again, not after this experience. Don’t look any further. Buy NVX, they’re great and inexpensive for the quality you get. I am now an NVX fan for life! Make sure you meet your subwoofers to the required airspace of your enclosure!! Just to let people know, usually the higher the QTS rating is, the better they will sound in smaller sealed enclosures like these subwoofers.