Hello Redhat1724,
I found some steps to access the equalizer in iTunes 11:
Use the iTunes equalizer
- Choose View > Show Equalizer.
- Do one of the following:
- Choose a preset option from the pop-up menu.
- Drag the frequency sliders up or down to increase or decrease the volume of a frequency (in decibels).

You can find the full article here:
iTunes 11 for Windows: Adjust the sound quality
http://support.apple.com/kb/PH12334
Thank you for posting in the Apple Support Communities.
Best,
Sheila M.