Gold Lion CV4004/ECC83（12AX7)

Original Genalex Gold Lion tubes are considered among the best 12AX7 tube types ever made. They are hard to find and when they are available, they are expensive. We now have the reissue CV4004 (ECC83) version in stock. It has long plates and gold pins.

"Sonically I find these tubes to have a lot of punch. More gain than a JJ ECC83S and less gain than a Shuguang 12AX7B. Noise is extremely low and microphonics are almost non-existent. I attribute that to the overall build quality. The high end on these tubes may be described as silky. Lots of definition and sparkle without a hint of harshness. The bottom end is not as pronounced as I had expected. Not an issue in a guitar amp and they certainly worked well in my tube pre-amp."

One other note about the construction of these tubes is they have filaments that are almost completely encased in the plate structure. They don't "light up" brightly when working properly.

Original Genalex Gold Lion tubes are considered among the best 12AX7 tube types ever made. They are hard to find and when they are available, they are expensive. We now have the reissue CV4004 (ECC83) version in stock. It has long plates and gold pins.

"Sonically I find these tubes to have a lot of punch. More gain than a JJ ECC83S and less gain than a Shuguang 12AX7B. Noise is extremely low and microphonics are almost non-existent. I attribute that to the overall build quality. The high end on these tubes may be described as silky. Lots of definition and sparkle without a hint of harshness. The bottom end is not as pronounced as I had expected. Not an issue in a guitar amp and they certainly worked well in my tube pre-amp."

One other note about the construction of these tubes is they have filaments that are almost completely encased in the plate structure. They don't "light up" brightly when working properly.