Telefunken Black Diamond ECC82 / 12AU7
12AU7s are used in Hi-Fi audio as a low-noise line amplifier, driver, and phase-inverter in push-pull amplifier circuits. They are also used in instrument amps as a lower gain option to 12AX7s. Telefunken is proud to have engineered one of the finest 12AU7s ever made, in the West German ECC82.
Today, Telefunken can claim once again to make the finest 12AU7 being produced today. With rugged construction for increased reliability, and low noise floor for quiet operation, this new production ECC82 is a solid choice for Hi-Fi, studio, and instrument amp applications.
Please Note: Telefunken Black Diamond tubes are sold singly. Power tubes will be supplied in matched pairs or quads. Just order the quantity you need. If you want preamp tubes to be high gain or matched, just ask during checkout and we'll get it taken care of for you.
This is a relative expensive driving tube for my single-ended 5687 machine. I compared this tube with other NOS expensive tubes. Although this one has no square bottom mark and it is made in Rassian, the sounding is remakable just like you are listening an NOS TFK tube. Overall, you can hear more extended high and low end sounding than any other modern tubes, even better than many other NOS 12AU7 tubes. In other words, you don't feel you spend too much money on this Russian made TFK tubes!
reviewed by: ED
I've installed on my Conrad-Johnson PV12L (output stage only) with a remarkable gain on clarity all across the board, tight and controlled bass. The sound is airy, soundstage is wide and deep. A bit expensive, for sure, but worth every penny!
reviewed by: mfoacs
Wow! Its like a bought a new amp. These tubes create a clarity and low noise background that is hard to believe for a tube amp. Everything has cleared up throughout the spectrum. Breathes new life into your gear.
reviewed by: sam
Although not a tube expert, I recently installed these tubes in my Belles Pre-amp and what a difference. Far more accurate timber and sound stage was far more precise. They are wonderful.Tube Depot is a great source for tubes so order with complete confidence....
reviewed by: Hunter