Our partners at MacUpdate are offering iWOW 1.1.3 from SRS Labs for US$12 (40% off, retail $19) for today only. SRS iWOW plug-in for iTunes will provide amazing audio immersion and maximum thump for a personalized audio experience. Version 1.1.3 will make iWOW process iTunes audio, even when it is in the closed state. Additionally, it has audio improvements for bass enhancement.