This tube has a well balanced, colorful tone with strongly defined lows, mids and smooth highs. It allows for more clean head-room than higher gain 12AX7s. In overdrive, it is smooth and strong with well defined lows and mids. When pushed into overdrive it offers clean distortion with well balanced lows and mids. The JJ 12AX7 is well suited for all types of music and playing styles. It is also highly recommended for studio pre-amps and hi-fi gear
$ 9.95
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23 of 27 people found the following review helpful
 Solid tone – great value, By
This review is from: JJ Electronics T-12AX7-S-JJ Vacuum Tube ECC83 Electric Guitar Power Amplifier (Electronics)
JJ 12AX7 are a great value for the price. If you want a brighter sound out of a dark amp (tweed Fender, Marshall) these are the cure. If you already have a bright amp (blackface Fender, VOX)these are not recommended, they bring out the higher frequencies and tend to sound a bit harsh in these types of amps. For brighter amps I recommend the Tung-Sol reissue 12AX7, these have a warm, round, and full tone, perfect for an overly bright amp.
The only drawback to the JJ’s is they are not as sturdy and long lasting as the Russian made brands (Sovtek, Electro Harmonix, etc.) but have a much richer sound without the muddiness associated with the Russian types. They tend to become microphonic after a while in combo amps which makes them a better choice in stand alone head units. All in all, a great economical tube with a solid bright tone. 0
6 of 6 people found the following review helpful
 Smooth and dark, By
CHUS01 Fan (Baltimore, MD USA) – See all my reviews
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This review is from: JJ Electronics T-12AX7-S-JJ Vacuum Tube ECC83 Electric Guitar Power Amplifier (Electronics)
I have a 5 watt combo amp. I was looking for a smoother sound, and got it in this tube. It lacks the brutal attack of the Sovtek and the all around bright articulate response of the NOS RCA gray plate I tried for over a year, but I’m really liking this sound for what it is. I think a tube amp ought to be warm and musical, with nice natural compression, and that’s what I’m getting out of this JJ.
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3 of 3 people found the following review helpful
JJ Tubes have become a standard, By
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This review is from: JJ Electronics T-12AX7-S-JJ Vacuum Tube ECC83 Electric Guitar Power Amplifier (Electronics)
The quality is consistant, noise is low, gain is moderately high and they work well in combo amps. Never had a problem with the 20 or so 12ax7s I bought over the last few years for 5 different amps.
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