-------------------------------------------------- oz design TTB True Tube Buffer This is a buffer/DI unit equipped with a vacuum tube. It's suitable not only for electric guitars but also for acoustic guitars, basses, and synthesizers. No issues, operation confirmed. Includes the original power adapter. I've owned it as part of my collection, but I'm offering it for sale to someone who needs it. If you purchase it with other items, I'll offer a discount to save on shipping and handling. Thank you. Achieves authentic vacuum tube sound, only obtainable through a vacuum tube. The TTB - True Tube Buffer - is a vacuum tube buffer meticulously developed by oz design, based on the idea of running a vacuum tube amplifier through the signal path of a home recording setup, such as with Kemper profiling amps, modeling amps, and simulators. The second-order harmonics unique to vacuum tubes add softness and richness to the sound, giving it presence and depth within the overall mix without relying on equalization. It features a British Carnhill transformer at the input, which subtly smooths out any peakiness, resulting in a very pleasant sound in combination with the vacuum tube's texture. It uses a 12AU7 for low noise and a rich sound, and the vacuum tube selection is also carefully chosen from tubes of manufacturers that oz design has rigorously tested. A can-type transistor is also used in the output stage, providing a low-impedance output. This allows for direct input to both HI-impedance inputs like Kemper and LO-impedance inputs like interfaces. It has a compact and attractive design, making it small enough to carry in a bag. The power switch is located where oz-kun reaches, and when you turn it on, "the fish's eyes light up." --------------------------------------------------