This one is the winner for current production tubes and beats most NOS options! The 12AX7 is a miniature high-mu twin triode. Tone: smooth with an enhanced lows and a clear top end, very open and musical . It is a fabulous preamp tube great for guitar and Hi-Fi amps. Genalex Gold Lion 12AU7 / ECC82, Matched Pair (2 tubes) $98.94. 3 Buy Now. Like all Gold Lion Tubes, Gold Lion ECC83 is built with meticulous quality, which makes it ideal as the premium upgrade for any audio 12AX7 application. It may be a bit "clinical" but it offers a good frequencies extension w/ good clarity and it is cheap. One of my favorites. I am finishing up my preamp that uses 12au7's, and I was thinking about buying some higher quality 12au7's. Genalex Gold Lion ECC83/B749 is the ultimate in current production 12AX7. One of the best modern 12AT7s on the market, the official model number is 12AT7WA / 6201 which is the military designation for the 12AT7. This tube has a higher gain presence than most other 12AX7's. Best Current Production 12AX7. What are the best current production EL34s and 12AX7s out there? hdahs143. Buy them from a reputable dealer who screens tubes; there's been a few production issues that screeners seem to weed out. Ideally, every 12AX7 should yield the same gain when placed in the same circuit. 2006 Fender Custom Shop Strat. They looked great. These tubes are some of the best sounding tubes you can get. They are hard to find and when they are available, they are expensive. Mullard 12AX7 is a long plate design which makes it a tad more susceptible to Microphonics, so we recommend low noise option if you use a high-gain amp. Want to try them all? Our 12AX7 Sampler Set has all three tubes above. Genalex Gold Lion ECC83/B749 is the ultimate in current production 12AX7. The pins are plated with gold to prevent corrosion and to protect the pins. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of … 8.8. halcyon About 450 max. And you can get some decent results that way, but it can sound a little lifeless. I really like the psvane 12ax7's in my phono stages. What are you paying for the best grade? I also own an equipment rental company in Atlanta. Right now, in the three 12AX7 slots on my two amps, I'm using a new Mullard,, a new Tung Sol and a Sovtek 12AX7LPS. Nice sound, low noise, compact plate structure. Original Genalex Gold Lion ECC83/B759 tubes are considered among the best 12AX7 types ever made. Buy Now. Another purchase and a pair of 12AX7 Telefunken reissues arrived. #1. SUCA-AUDIO Tube-T1 Preamplifier, Vacuum Tube Amplifier Buffer Mini Hi-Fi Stereo Preamp with Treble & Bass Tone Control for Home Audio Player (6K4 Tubes) NOTE - This is a preamplifier but NOT a power amplifier or a phono preamp, CAN'T be used for turntables or passive speakers. The best is … Since I never afford to have the Mullards I do not know if the Svets are close comparisions or not. View All Close. In this video Kurt from Amplified Parts gives a comparison of 6 different 12AX7 vacuum tube types with a Marshall JCM800. This is why they are used by more o.e.m than any other valve. The purpose of this comparison is simply to provide guitar players with a frame of reference to help in finding the best current production 12AX7 for their needs. I don't know what I'll do when they run out. Cali Dude Tele-Afflicted. as well as NOS tubes in various positions in different guitar amps. We tested the following current production tubes: Tung-Sol 12AX7 (Russia) Electro-Harmonix 12AX7EH (Russia) Sovtek 12AX7LPS (Russia) Sovtek 12AX7WA (Russia) JJ ECC83S (Slovak Republic) Ruby 12AX7 (China) Mullard 12AX7 (Russia) All three of these tubes is virtually identical. Phrygian77 … ANSWER - You can substitute a 12AX7 for a 12AT7, 12AU7, 12AY7, 5751 or a 7025. But what are the differences? It depends on which tube you are replacing. Let's assume it is the first preamp tube. 12AT7 * * * * The 12AT7 is a clearer sounding tube than a 12AX7 but with a little less gain. Among the current production 12AX7, the Sovtek 12AX7LPS and the Ei Elite 12AX7 is the best. A comparison of some of the most popular 12AX7s currently being produced. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of … Gold Lion ECC83 delivers a full sonic range with excellent articulation. I think everything is worth trying You might pick up: 12AX7 Comparison of Current Made Tubes. 7. I still have them all (Sovtek LPS too, JJ, EI Gold etc). This is the closest overall to a real Mullard in production. JJ ECC83S: Mesa Boogie's current choice for 12AX7 tubes. LPS is very warm/dark and grainy. … I find they work best as a PI, but they can really darken up your amp. They were new, and they cost less than the NOS Teles I had been listening to. The Sovtek LPS is one of the best current production 12AX7’s available, regardless of price. If you need a little more detail, the Raytheon 5751 windmill getter is also great but not as smooth sounding as the Mullard 12AX7 long plates. It goes smoothly into distortion and the clean sound is detailed and not cloudy. A Comparison of Current Production 12AX7 Tubes by Kurt Prange. 12AX7 Basics Great tone and low noise. The Golden Lion 12AX7 tall plate sounds fairly good. The Rib plate is also a very good quality tube. Wasn't expecting that at all. Reading this makes me glad that I bought a large supply of 12AX7 tubes about 12 years ago. JJ803S is one of my CP production faves for V1 and PI. It's best utilized as a phase inverter or reverb driver. You will end end up with a rotten sounding amp unless by chance it happens to work and even then it will sound much worse than fitting a 5751. They are said to be current replicas of the legendary box plate Mullards. #44. marcus262":2crlblnt said: Not many people know this but you can buy chinese 12ax7 from the 80's 90's cheap on ebay for 12$ a piece including shipping. "High grade +" is one of the labels in the measuring system used by Magic Parts. Nobsound EAR834 MM Turntable Vinyl Phono RIAA Preamp HiFi Tube Preamplifier DIY Kit. The purpose of this comparison is simply to provide guitar players with a frame of reference to help in finding the best current production 12AX7 for their needs. By far the best 12AX7 for hifi is a SELECTED Ei/Yugo 12AX7. a tube with mu 10 amplifies the input voltage around 10 times) is the most often used tube in the preamp stages of audio equipment, be it a high-end application, a studio microphone preamplifier or a guitar preamp. Probably the best lifespan of any current production 12AX7 and relatively inexpensive to boot. Same routine – warmed up the amp and then gave them a listen. Members; leadfootdriver. 12AX7 Basics. These are a very consistently made tube, sweet sounding, and very warm. Large sound stage with excellent detail. The 12AX7 is a high-mu twin triode (the mysterious ‚mu‘ means amplification factor, e.g. A comparison of current production 12ax7 tubes (2013) If you prefer you can find the link for the PDF file below. I've stopped buying NOS 12AX7s. What makes these tubes so special is they are the first real deal Frame Grid 12ax7 made is decades. 2016 update. The ’12AX7′ Tube. It's best utilized as a phase inverter or reverb driver. I have a pile of various brands and most sound like ASS! Tung Sol RI 12ax7/ECC83 is big and bold- A little tubby on the low mids, a little grainy on the highs. The 5751 has only 70% of the gain of a regular, typical 12AX7. Buy them from a reputable dealer who screens tubes; there's been a few production issues that screeners seem to weed out. The practical issue with the long-tail-pair phase-splitter was the need for a trimmer adjustment for proper balance. current production options to choose from. Apr 20, 2018. In this role it is widely used for the preamplifier (input and mid-level) stages of audio amplifiers. The Mullard 12AX7 long plate square getter is slightly better, but high cost may not be worth it. Pennsylvania. 12AX7: Since this is the most common tube in guitar amps, a wide variety of brands (including some resurrected old brands) are available to choose from. ... this tube tends to be too microphonic to be useful as a preamp tube. New Gain Tested Tung-Sol 12AT7 / 6201 (ECC81) Reissue Vacuum Tube. the Chinese tubes do have a shorter lifespan unfortunately. I was checking ebay for some Mullards or Telefunkens. The two other circuits evaluated were all triode, based on circuits designed by Hafler over his long career. For new production 12AX7 tubes, I have used and really like the Mullard reissues and for a little more money the Psvane 12AX7s or the Sophia 12AX7s. We have them value priced for each hand matched pair, perfect if your budget does not cover NOS tubes but you want a decent sounding 12AX7!. Use this chart as a starting point to find which current production 12AX7 will work best for you. The JJ's came close but no cigar. The purpose of this comparison is simply to provide guitar players with a frame of reference to help in finding the best current production 12AX7 for their needs. While somewhat pricey, the gold pin Genalex Gold Lion is absolutely the best current production 12AX7 I've found for brightness, airiness and clarity. Tubes geared to your sound. These are Chinese premium hand selected current production gold pin 12AX7 tubes, nicely matched. However, in reality there are comparative gain differences among 12AX7s. But you don’t need record through a huge Ampeg stack to get studio quality tone. In the early 2k's, I bought 3 each of the current manufactured 12AX7/ECC83s for tone testing in my Plexi. The Tungsol seems to clean up a bit better when you roll back the volume on your guitar, plus it goes a lot hotter than the Ruby when hit with a boost in front, it's more sensitive. Start new topic; Recommended Posts. The smooth plate is one hell of a tube. The new production Genalex Gold Lion 12AX7 / ECC83 / B759 gold-pin tubes (Russia) always sounded excellent, in every position, and were the best sounding tube in the AF-amp positions of my McIntosh MC240, MC30s, and Fisher X-1000. 12AX7 Basics. Mullard 12AX7/ECC83: This 12AX7/ECC83 is a new production copy of the famous Mullard 12AX7. Wasn't expecting that at all. 12AX7 Comparison of Current Made Tubes A comparison of some of the most popular 12AX7s currently being produced. You will end end up with a rotten sounding amp unless by chance it happens to work and even then it will sound much worse than fitting a 5751. At $6.50 each, one must accept that up to 50% of tubes bought (though I find it's more like 1/3rd) will be rejected for use in anything but a follower/unity gain stage and that 1/4th will be suitable only for the trash can. Posts: 17,531 Joined: Jun 2, 2003 Location: northwest. However, in reality there are comparative gain differences among 12AX7s. JJ makes a decent 12AX7 (ECC83S) but I have moved away from JJ ECC81 for PI circuits from now on. 67,155. 3. Great for rock tones, punchy, ballsy with a hint of midrange. Favorite/best current production 12AX7's? The 12AT7 type has 10 times the anode current of a 12AX7 and so the voltage drop across the anode resistors is 10 times more resulting in the 12AT7 being starved of volts. Electro-Harmonix 12AU7 EH Vacuum Tube (Close Runner-Up) If you want your guitar amp to … Ships from and sold by Tonal Tubes. This tube is especially suited for use in resistance-coupled voltage amplifiers, phase inverters, multivibrators and numerous industrial control circuits where high voltage gain is desired. Jun 25, 2017. The LPS seems to be cleaner and sharper than the other Sovteks. Clinical '' but it offers a good frequencies extension w/ good clarity and is.... this tube tends to be useful as a phase inverter or reverb driver off the production line the issue. 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