Bartolini HR-4.7AP/918 Preamp Harness - 3-Band EQ w/ 4 Control Knobs &amp; 3-Way Mid Frequency Selection Toggle - Active/Passive Switchable - Prewired for a 2-Pickup Installation<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Prewired 3-Band Active EQ for Electric Bass </span></li><li><span class="a-list-item"> Includes Volume， Blend， Bass/Treble and Midrange Pots </span></li><li><span class="a-list-item"> Push-Pull on Volume for Active/Passive Use </span></li><li><span class="a-list-item"> Toggle for 3 Midrange Frequencies (High/Med/Low) </span></li><li><span class="a-list-item"> One Year Warranty; Made in USA </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41M7UCuDz-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51rlQTqj66L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51TTy%2B1Q0BL.jpg" noproxy>