Does the AKG K702 need an amp?
Included with the AKG K702 is a removable mini-XLR cable (3m) terminating in a 3.5mm jack. Both my audio interface and USB-C to 3.5mm dongle handle the headset well, but the rule of thumb goes if you need to crank the volume above what's normal in your experience, you probably need an amp.
How many ohms is AKG K702?
The K702 is such a great headphone for anything mobile and stationary. The 62 ohm impedance allows the headphone amp a lot of headroom and it shows in the results of the musical experience.