V3 – it copies the signal and directs it to the output tubes.V2 – recovers lost signals and has the least impact.To start off, know that there are 5 types of tubes, labelled form V1 to V5 (Note: you can see the labels at the back of the amp) : If you are new to changing tubes in the Fender Blues amp, this section is for you. Understanding the Fender Blues Jr tubes layout If you have the spare dough, this is worth a consideration. The build quality, doesn’t seem to reflect the additional cash outlay. However, I don’t find the price difference to justify for these subtle increase in audio quality. Overdrives are also clearer when compared to Mullard or JJ. The difference is pretty subtle but it is there if you listen hard enough. Genalex Gold Lion EL84: This is the most expensive option but you get more refined sound than the JJ. In terms of life span, it seems JJ can last longer from the forums I read but I can’t vouch for that personally. However, the mullard EL84 also has less headroom so some players might not appreciate it. When in distortion, its overdrives sounds creamier than other tubes. If you are a blues player, you will appreciate this tube as you can get into distortion much easier. Mullard EL84: This is a nice alternative to JJ but is about $15 more than JJ. They usually last me between 9 months to 1 year, depending on the frequency which I played. They are pretty long lasting tubes, at least for the ones I have purchased.It is very noticeable especially if you have good speakers or headphones. The tones are fuller especially to mid to low range.The EL84 won me over with its combination of affordable pricing and quality of sound. Why I choose JJ EL84 vs Mullard vs Gold Lion The downside is that volume wise, it is more quieter than Sovtek and EH. Not saying the Tung Sol has a bad top but just not as sweet In addition, the Tung Sol also has a high end complexity whereas Sovtek is more straight forward.Ĭompared to the EH, I feel Tung Sol’s top is less smooth. Most Fender fans I know love brighter tones so this is a good alternative if you want the Fender tone. Tung Sol 12AX7: This tube has the brightest articulation among the 3 12AX& tubes covered here, especially when compared against the Sovtek. Some of you might prefer the brighter tone of the Sovtek, in which case there is no need to replace anything. I prefer EH versions as they are darker and have a stronger midrange. However, most people usually find faults with them. They work hard and produce a clearer and bright chimp. Sovtek 12AX7: These are the default tubes and there is nothing wrong with these. It is not obvious except to those who really listen to every single note. However, the EH has a humming note that some might dislike.Has a crunchy sound that is similar to the Sovtek but with a smoother top.Has better lows as you can hear the bottom more clearly.The Electro Harmonix has the following differences over the stock Sovtek 12AX7. Why I choose the Electro-Harmonix 12AX7 vs Sovtek vs Tung Sol
3 Understanding the Fender Blues Jr tubes layout.2 Why I choose JJ EL84 vs Mullard vs Gold Lion.1 Why I choose the Electro-Harmonix 12AX7 vs Sovtek vs Tung Sol.