Korg Nu:Tekt OD-S & HA-S Headphone Amplifier Demo | NAMM 2020 Ted DrozdowskiJanuary 17, 2020VideoIf you can build with Legos, you can build these easy DIY overdrive pedal and headphone amp kits …no soldering required.korgwhats-newvideosheadphonesgear-show-demonamm-2020overdrivediyspecial-featured-storiesgearGearEffectsVideosNAMMDIY