Luxman Tube Buffer/Equalizer, Like New

For sale: this tube buffer manufactured by Luxman, a Japanese high-end hi-fi equipment maker, imported from Japan and upgraded with a NOS Valvo tube, produced in the 1960s in the Netherlands at the Heerlen factory. This tube bears the famous delta symbol and has only been tested—it has not undergone "break-in". A tube buffer is an amplifier that uses vacuum tubes—not to amplify the audio signal, but rather to improve signal quality, primarily for isolation and impedance reduction. It functions as a signal splitter, allowing one audio device (e.g., an amplifier) to drive multiple output devices without signal degradation. In summary, a tube buffer is a useful tool in audio systems where one seeks: Greater flexibility: To connect multiple output devices seamlessly. Improved performance: With more demanding audio sources. A more "tubey" sound: For those who appreciate the unique tonal character tubes can deliver. It is supplied with a 220V/50Hz power supply and a European plug—ready to use. Hand delivery available in Lisbon; shipping possible at additional cost.