The ECC803S JJ is an exact super premium replacement for all 12AX7/ECC83 types. It has a plate structure like the normal 12AX7 unlike the ECC83S JJ which has a shorter plate. It has little shiny metal fins on the plate to help throw off heat and increase efficiency. The sound is big, full and rich. A wonderful audio tube as well as a guitar amp tube. We test for noise and microphonics included in the listed price. Higher grades are listed for guitar combo amps and phono pre amp applications.
Currently there are no reviews for this product. Share your opinion with others, be the first to write a review.