Your ears will thank you! – Boom: Bass Booster & Equalizer Review

I agree with the review from Jmcgrady, it does exactly as he described, and that's a vast improvement for non-audiophiles. The sounds is crisp, brassy and you feel the base. Now listening to old Motown greatest hits, and it takes it to a new and better level. There is a real soundstage now, and you can feel and hear a lot of what the song might sound like on more expensive headphones. The apps business and pricing model makes sense, and yes it should have been mentioned up front that this is a FREE five day trial, but blame that on Apple that they haven't created this FREE TRIAL business model at this point in the iTunes Store history. Worth the time and money. Only short coming is that it doesn't work (yet) with streaming music, only with songs stored locally on your iPhone, iPod or iPad.
Review by Grocery Dad on Boom: Bass Booster & Equalizer.