Genalex - Gold Lion ECC83/B759 (Premium) Preamp Vacuum Tube
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Also check out our review.
Original Genalex Gold Lion ECC83/B759/12AX7 tubes are considered among the best 12AX7 tube types ever made. They are hard to find and when they are available, they are expensive. They exhibit a large detailed soundstage that is sought after by discerning audiophiles who demand the highest quality sound. The reissue Genalex Gold Lion ECC83 / B759 / 12AX7 recreates the sound signature of the original. This tube features balanced sections and gold plated pins.
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.
Other Genalex - Gold Lion tubes 
12AX7 Tube TypesAdditional Information and Downloads
Reviews:
12AX7 Tube Review
Tube Matching Information:
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Downloads:
Genalex - Gold Lion ECC83 / B759 Datasheet (PDF)
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Warranty Information and Return Policy
Warranty Period: 3 monthsAll our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.
These guidelines may be updated without notice.
Ratings & Reviews
32 reviews
Genalex - Gold Lion ECC83 / B759 | Microphonic out of the box.
by Bret
I bought this tube to try in one of my Ampeg SVP-Pro preamps. I received it but life got busy and I didnt remember/get the time to try it until about 8 months later. I put it in V1 and as soon as I turned the unit on and played the first note I could tell it was microphonic. Feeling that I'd left it too late to send back I just sucked up the financial loss and wont be buying or recommending this tube again.
Genalex - Gold Lion ECC83 / B759 | Genelex Gold Lions are the best
by KCnAZ
Use these in a McIntosh C1100 preamp and they are by far my favorite 12AZ7 tubes for this setup. Jeff said it well below so I won’t repeat the improved sonic characteristics but absolutely love these. These and the ECC81’s always seem to sound better and last the longest from The Tube store as well!
Genalex - Gold Lion ECC83 / B759 | Very happy with these tubes!
by Brian
I have had four of the gold-pin Genelex Gold Lion 12ax7 in my Zesto PS-1 phono stage for a week. It replaced two other combinations: 2 NOS Mullard/2 NOS Telefunken and/or 4 NOS Telefunken. These are rare, and very expensive, tubes. So far, I prefer the Genelex GL-ECC83 (Premium). Go figure!?
Genalex - Gold Lion ECC83 / B759 | Smooth
by Jeff
Fantastic GL-ECC83 (Premium) tubes in my McIntosh preamp. Fast punchy bass, wide stage, lush mids and smooth highs. Great service from the Tube Store!
Genalex - Gold Lion ECC83 / B759 | Great sound, lots of gain
by RTT
Despite the fact that all 12AX7's are supposed to have a amplification factor of 100, a lot of them (especially current production ones) actually have a lower amplification factor. But the long plate Gold Lion ECC83/B759 is an exception; it comes pretty close to 100, and with a great tone as well. I don't recommend it in any preamp stage of a combo amp (get the shorter plate version if you want a Gold Lion), but for the phase inverter or for other applications, this is a great tube, if your budget allows (as it is also not cheap).