Apex Burn In®
Apex® offers premium burn-in matching for those who demand uncompromised performance and maximum stability from their audio components.The objective of tube matching is to group tubes into sets having reasonably similar electrical characteristics so they can be biased together in an amplifier for optimal sound quality and longevity. Unfortunately, in some cases, electrical characteristics that were once perfectly matched may begin to drift apart over time. Burn-in matching ensures that a matched set of tubes will not have a drift in characteristics.It happens as a result of variations in the manufacturing process from one batch of tubes to another. During the manufacturing process the tube’s cathode has to be initially activated in order for it to properly emit electrons. If the cathode activation process for any of the tubes in a batch was not completed sufficiently, that tube’s electrical characteristics may change over time. The Apex Burn In® system stabilizes tube cathode emissions which can differ from tube to tube based on variations in the cathode activation process during manufacturing. It also provides an extra quality check to ensure faulty tubes are weeded out.
Why does a drift in electrical characteristics occur in some tubes?
What’s the Apex Burn In® method?
|Tube Type||Apex Burn In ® Plate Voltage||Apex Burn In ® Plate Current|
|EL34||500 V||45 mA|
|6550||500 V||75 mA|
|6L6||400 V||60 mA|
|6V6||300 V||40 mA|