Hi im considering either 325 or gs1000 since thats the only one that i have tried. Im on a budget of 300-1000.

Hi,   I am planning to upgrade my HPs. I got ath m50s right now and planning to have my Grados. I have tried the sr325 as well as gs1000. but I am still new to this hobby and thinking how can i fully maximize these HPs by having the right amps/DACs. That's keep me undecided on upgrading but...