Darkvoice 336SE tube headphone amplifier. Warning to fans of the gamma 2,2: PBR shader will work only under the conditions: Vray 3.2 for the glossiness and 1 / ior texture make sure the gamma for these maps is set to 1.0 diffuse and specular (reflection) should be left to default ( gamma 2.2) select the "Microfacet GTR (GGX)" brdf (Vray 3.2 only). Light mesh without smoothing.