Getting Your Stuff This headphone is the true giant killer if it is obtained with an SRD-6/7 transformer box. Keep in mind that you will need at least 10 watts of power (>15 recommended) from a speaker amp to adequately power these things. Vintage amps are wonderful. If you don't have one, consider getting a TA2021 class-T amplifier which can be had for as little as $40 on Ebay. Amazingly, that combo sounds glorious and doesn't leave one wanting. If you can get the complete setup for under or around $400, you are partaking in one of greatest values...