UNIVERSAL AUDIO SOLO/610 Classic Tube Preamplifier and DI Box Domestic genuine product. 100V specification Includes the main unit, power cable, instruction manual, and original box. Used only for home recording, in beautiful condition. Usage frequency and time are low, so the vacuum tube has minimal wear. No price reduction, instant purchase OK. Thank you. Microphone preamplifier Compressor Equalizer Home recording, Recording universal audio Grace design AVALON Golden Age Project API NEVE SSL aurora audio vintech audio warm audio heritage audio bae 1073 RUPERT NEVE DESIGNS Millennia SSL