Hi there! Based on your question about 12" car sub woofers, here are a couple options that seem like great value: The Star Sound 12" Sub Car Subwoofer caught my eye first since it has the best price at only R400. It's an affordable way to add more bass to your car audio system. The Pioneer TS-W312D4 12" 1600W Car Subwoofer is a bit pricier at R1484 but it comes highly rated and is built to deliver quality sound. I hope one of these fit your needs and budget! Let me know if you need any other details.