This is a pretty good deal while it lasts.
https://www.parts-express.com/dayton-audio-ls10-44-10-low-profile-subwoofer-dual-4-ohm--295-251
This is a pretty good deal while it lasts.
https://www.parts-express.com/dayton-audio-ls10-44-10-low-profile-subwoofer-dual-4-ohm--295-251
Wonder how four of those would do... say... under the back seat of a truck? :eyebrows:
Better than two SD3 10 but not quite as good as four SD3 10. Ported they may do better. I’d have to check on this with Bassbox Pro.