SOLD, SOLD, SOLD
I've decided to sell this since I have a Puritan Audio Labs "Master Purifier "that also removes DC, therefore, the Core Power is redundant. The unit is very effective at removing DC, plus it also has surge protection. I have owned it for about 2 years and it is in great condition. The Contour Control also works very well. From the Underwood HIFi Website:
"Deep=Core removes, EMI, RFI and most importantly DC from the line. DC is a major issue and almost all AC lines have some DC on them. It also has even better surge suppression. There is also a Contour Control on Deep=Core to match the power coming from your wall to the power supplies in your equipment.
You plug Deep=Core into the wall and then Equi=Core (or any power conditioner) into Deep=Core. The pair makes a world class line Conditioner with surge protection.
The Deep Core 1800 is a multi-function power conditioner that re-defines the category. The Deep Core 1800 is designed to not only provide clean, spur free power but it also allows the user to optimize the power delivery interface via a user adjustment. The optimization of the power delivery interface can significantly affect sound quality as the power company is a major contributor to attributes such as poor noise floor and dynamic range of the system. The Deep Core 1800 can be used with almost any system configuration providing optimized power for both source components and power amplifiers. It will work as a stand alone device, in front of the Equi=Core 1800 or older 1200, 300 etc, or in front of any other power conditioner you may already own. However, it works best when used in front of a quality power conditioner, like the Equi=Core 1800 balanced power conditioner."
https://www.underwoodhifi.com/products/deepcore-1800Buyer pays 3.5% PP or no PP fee if using Friends and Family. Split shipping from 94122.

