Does anyone have a good recommendation for a PC based EQ program? Haven't really been able to find a good one yet.
Equalizer APO + a UI if needed.
http://sourceforge.net/projects/equalizerapo/
http://jiiteepee.tripod.com/fpeqgui-10mc.html
You gotta install on all the sound devices you have connected to the computer that you want to EQ in order for it to work.
Sky is the limit as far as how far you can push the eq. Just stacking curves you can get above 30db's for any range of frequencies even if the UI only shows 21 db's. But 21 really is the max for the SZ2K, above that I get distortion with the e12.
Quote from PocketSmiley from the first page of the thread (quick how-to):
§ Tutorial
This only works for some Realtek drivers and the default Windows sound drivers under Windows Vista, 7, or 8/8.1. The built-in Windows "Bass Boost" is used with
Equalizer APO (here is
a head-fi thread dedicated to the latter). Basically, Equalizer APO allows detailed control of the built-in Windows sound modules, so it only installs the controller (no GUI) and you set the settings in the file "config.txt" under "C:\Program Files\EqualizerAPO\config". Any changes you make in config.txt affects the sound in real-time. You can read the head-fi thread for very quick tutorials, but I promise that it only looks complex at first. Inside my config.txt is this:
Filter 1: ON PEQ Fc
25,0 Hz Gain
15,0 dB Q
1,000
Filter 2: ON PEQ Fc
3000,0 Hz Gain
5,0 dB Q
1,000
Red is the center frequency in Hz (comma means decimal), blue is the level, and green is the width of the curve (when using "Q", 0 is the widest, and affects the entire spectrum, while 10 limits the boost to just the center frequency).
Some head-fiers made a GUI for it, most used is jiiteepee's FPEQGUI-10MC,
head-fi thread here. Using the GUI, Filter 1 above looks like this: