Presonus Bluetube Dual Mic/Instrument Preamp Box

This is an analog hybrid solid state two-channel and tube preamp. It uses a single 12AX7 tube to amplify both channels on the tube circuit, and it has a discrete solid state circuit as well, so you can get preamplification and gain in either of the two flavors. It also has phantom power for condenser microphones, making this a great little box to use in conjunction with an audio interface or mixer with sub-optimal mic or line preamps. This one is in great shape and comes with its power supply. Available at Metro Gnome Music.