A pair of Goldwood GW-1858 18" Woofers.
Barely used. I bought them to try on Open baffle H frame per MJK recommendation. One speaker has a minor bent frame due to shipping damaged from PartsExpress. They both work perfectly so I did not bother to ship them back.
$110 for the pair + shipping which would probably be about $25 in the US.
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=290-386