BUGERA 12AX7A<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> The BUGERA 12AX7A is a high-end version of the standard 12AX7 as it features ultra-low audio and microphonic noise </span></li><li><span class="a-list-item"> It provides maximum level of gain and overall tonal quality with superior reliability and consistency plus features an extremely open and expressive tonal spectrum， with a balanced and smooth frequency response </span></li><li><span class="a-list-item"> This is clearly our ultimate preamp tube to be used in virtually all critical gain stages， which makes it one of the best 12AX7 ever produced </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/511KxGz04AL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41qsctbZ83L.jpg" noproxy>