NOTE When you turn up the level knob all the way up it has a hum. Otherwise with normal recording levels you cannot hear it. The hum did not come out in my recordings as I never turned it full blast to record but I did want to note it is there when its all the way up. Im not certain if this was a grounding issue on my end or in the unit itself.
Any easy fix with a hum eliminator in a DAW or a ground loop destroyer of some sort or quality power conditioner. Includes power cable only (Shown in photo). The item "Universal Audio SOLO/610 Vacuum Tube Mic Preamp & DI Box" is in sale since Friday, April 12, 2019. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips".The seller is "avedon81" and is located in Santa Fe, New Mexico. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Barbados, Brunei darussalam, Bolivia, Guadeloupe, Iceland, Jordan, Cambodia, Sri lanka, Maldives, Uruguay.