Vincent Pho 701 preamp. Owned for about 1 year. Used for less than 100 hrs. In perfect condition. Comes with a vintage NOS RCA clear top tube. I do not have the original tube nor RCA tube box unfortunately. Classy Two-Chassis Hybrid Design Phono Stage Now With USB Output Vincent Audios two-chassis PHO-701 MM/MC phono preamp improves upon the best-selling PHO-700 with two great new features. First, it offers a USB output, allowing you to archive your vinyl tracks to your computer. The second feature is added adjustability to match your cartridges. The PHO-701 makes it easy to convert your vinyl tracks into digital files, and the sound quality is excellent. The analog signal from your turntable is converted to a CD-quality digital stream by a built-in Analog-to-Digital converter. The A/D chip is a CS5340 made by Cirrus Logic. The output is fixed at 24-bit / 192 kHz and uses a USB connection. Just plug the PHO-700 into your PC or Mac computer, which will recognize the PHO-700 by the name USB-Audio. Using recording software you can find on the web (such as the free Audacity app) you will be able to easily archive your vinyl. In addition to giving you a convenient way to digitize your LP tracks, the PHO-701 also offers the ability to fine-tune the input to a wide range of phono cartridges via dip switches on the bottom for best sound quality. With these switches, you can easily adjust the input capacitance and input impedance. See your phono cartridge user guide for the recommended settings. Power Supply Has Its Own Separate Chassis The PHO-701 puts its power supply in a completely separate chassis for pristine signal quality. It will reward you with an amazing vinyl experience. Separate cases for audio and power supply circuitry help isolate the signal chain from AC distortion and interference. The PHO-701 performs its RIAA correction with high precision for ultra-low distortion and uses the highest quality audiophile parts, inside and out. It has a single phono input, which can be switched to accommodate low-output MC cartridges or MM/high-output MC cartridges.