At Northern Lutherie our passion is to make your string instrument be heard! And we strongly believe we produce the absolute best sounding piezo electronic pickup on the market at the most affordable price. The Parity King is our patent pending dual-sensor upright bass pickup. Like all of our pickups the Parity King was developed and designed to utilize the physics of stringed instrument construction (hard back, soft top) which creates a strong output, and a natural sound while maintaining a natural controlled tone. We stand behind the belief that the warmth, clarity, and response of the Parity King is unmatched by any competitor on the market. The Northern Lutherie Promise: For the past decade and to this day, we at Northern Lutherie LLC have strived for a few things. One of our main focuses has always been to be, and stay a small family ran company with a higher moral standard than others. We don’t rely on cheap foreign labor from countries that can’t comply with the labor laws of the U.SA. All of our pickups are handmade by small handful of family and friends right here in our shop in Milwaukee WI. Another standard we have is our unmatched dedication to the satisfaction of our customers. We offer a direct manufacturers **guaranteed for the life of the pickup you purchase. If your product is defective or stops working at any time we will refund or replace your pickup at no cost to you. But the number one focus at our small shop is to produce the absolute best sounding pickup that delivers great response, warmth, and natural tone at the most affordable price on the market. We strongly believe our pickups literally speak for themselves as the absolute best pickup out there! https://www.youtube.com/watch?v=5L0WSdJJEQMProduct Description