- Jul 11, 1999
May upgrade to Adire Audio's 18 incher.. Wondering if there is any interest in my tempest subwoofer driver with only around 20 hours on it.. I would like to get $100 USD + shipping. For my Canadian friends, you could save taxes, brookerage and all border fees that I already paid. This sub is great for DIY, can handle lots of power and is very versitile. Some serious bass.. In mint condition with original box, etc!