Sovtek 12AX7LPS， Matched Quad<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Matched Quad </span></li><li><span class="a-list-item"> Matched for both gain and conductance </span></li><li><span class="a-list-item"> Long plate </span></li><li><span class="a-list-item"> Very musical and detailed sound </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51-TFZmW3fL.jpg" noproxy>