You can use the DI XLR out to a female 1/4" or 1/8" (stereo, not mono) plug to receive your headphones, like I've done (or IEMs if you are savvy to those, unlike me). I purchased an adapter online, you just need to make sure the female part of the plug is stereo so you hear it through both ears.
My Carvin BX1500 has a level control on the XLR out that isn't affected by the master on the front but you could just use whatever level is being sent to the XLR out if this is just for the times of home/studio headphone use.