QUAD (FOUR) Factory Matched and Balanced Telefunken Elektroakustic ECC83 12AX7 Black Diamond Tubes



QUAD factory matched and balanced 12Ax7 Telefunken Elektroakustik tubes.  These are precisely matched at the factory and the results are marked on each set.

The TELEFUNKEN Elektroakustik ECC83-TK is a newly manufactured and cryogenically treated rendition of the classic ECC83, commonly known by the American designation 12AX7. The ECC82 is a dual triode vacuum tube with high gain and low noise characteristics, making it ideal for hi-fi audio equipment and instrument amplification. It is commonly used as a low-noise line amplifier, driver, and phase inverter in push-pull amplifier circuits.

The Black Diamond Series ECC83-TK features gold-plated pins and a gold-plated internal grid. The ECC83-TK is often considered more of a brighter tonal character rather than warm, and is characterized by its wide sense of dynamics and exceptionally quiet noise floor. It offers an accurate and focused image with a flat midrange and tight low end. The ECC83-TK is excellent in headphone amplifiers and high-end home audio and phono equipment, among many other applications. The Black Diamond Series ECC83-TK undergoes rigorous quality control and testing to deliver a dependable tube for the most demanding applications.