Quote from: Keith Courage on 03/17/2017, 07:36 AMThat loud deep sounding audio hum is usually caused by using an AC adapter with too low of amperage. Might fix your everdrive issues as well if you get a better Power supply.Thanks for the response! I guess I'll try ordering one of these and hope that it works:
https://en.retrogamesupply.com/products/power-supply-for-nec-pc-engine-interface-unit