Tone equalizer in computer

If i plug my computer whit usb cable in my dac is there there a way to use a tone equilizer directly in my computer?
Yes. I believe you can use what ever EQ functions are available in your playback software.
The very best, transparent EQ software I have found is that included with Amarra. I use it as shows and at home. You need to use Mac.

Steve N.
Empirical Audio