This needs to be the default EQ setting in iTunes. From the original article:
Open the equalizer, and from the pop-up menu, select “Make Preset.” Call it “Perfect,” because it is, and set the following levels, from left to right (skip the Preamp section):
db +3, +6, +9, +7, +6, +5, +7, +9, +11, +8 db
Everyone and their cousin has an iOS device. iPhones everywhere you look.
Now that everything’s stored in the cloud, I still believe it’s a good idea to keep a local copy of information (e.g. address book contacts) you rely on. You know, just in case something like this happens to you. Or in case you accidentally deleted a phone number and realize it after iCloud has already deleted it from the cloud as well.
A backup for your backup.