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JJ Electronics EL34 Power Tube Apex Burned In - Matched Pair

The JJ Electronic EL34 is another classic from JJ. This tube features a rugged construction leading to an incredibly reliable EL34 with astonishing tone. Overall the sound is nicely balanced with tight lows, a rich and dynamic mid range and clear highs. The JJ EL34 is a great replacement for guitar amplifiers and stereo amps as well.


How Apex Matching® Works

Apex Tube Matching® is performed entirely in-house on our custom-built tube matching system using our custom-designed software and testing methodology. What this means is we are not matching your tubes on inferior matching hardware or using outdated equipment. Rather, we are using state-of-the-art equipment designed and built to our specifications using our years of experience in the music industry. Our designed systems are highly robust and extremely accurate, measuring current and voltage to provide the best possible matching for our tubes. These systems are a result of many, many years of experience and an incredible amount of planning, design, prototyping, and testing resulting in the best tube matching available in the entire industry. We know you'll find our tube matching exceeds your expectations in every way!

Click the link for a very detailed description of Apex Matching. 
https://www.apexmatching.com/how-apex-matching-works