I have had both the HDC3 and the SA so heres my opinion:
HDC3 is almost twice as expensive as the SA
HDC3 will get low, but not as low as the SA
HDC3 likes 2000w, and the SA likes 1000w
if it means anything I used to run an HDC3 and now run an SA, but dont get me wrong the HDC3 was slightly louder, but the SA sounds better and drops lower.
if it were my money I would invest in a good 2000-2500w amp and run two sa-12s. will get stupid loud, and low in the right box.
HDC3 is almost twice as expensive as the SA
HDC3 will get low, but not as low as the SA
HDC3 likes 2000w, and the SA likes 1000w
if it means anything I used to run an HDC3 and now run an SA, but dont get me wrong the HDC3 was slightly louder, but the SA sounds better and drops lower.
if it were my money I would invest in a good 2000-2500w amp and run two sa-12s. will get stupid loud, and low in the right box.