The Deep Core 1800 is a “unique” power conditioner because it allows the user to adjust the level of power delivery for optimum performance via a control knob on the back. So you could either place it before your power conditioner or if you only have two components in your system, just use it directly. The Deep Core 1800 removes EMI, RFI and DC from the line and also has surge suppression. Which will give you that extra layer of protection and benefits if you are using it in conjunction with your power conditioner. It is not power limiting so you can have power amps hooked up to it.
Cosmetically, the unit is in good shape. Minor scuff marks and a minor nick on the rear edge but nothing major. We have the original box but will securely pack this for safe shipping.