Electro-Harmonix 6922， Matched Pair<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Matched Pair </span></li><li><span class="a-list-item"> Great sounding tube </span></li><li><span class="a-list-item"> Has a long lifetime </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/517vQ-APKOL.jpg" noproxy>