Do you need a DC Blocker or EMI filter for a specific component? For sale is the Core Power Ground Zero in very good used condition. This is a good plug-in DC Blocker / EMI filter. Reports say far superior to the ifi DC Blocker or the Audio Lab DC Block. Best for large transformer amps and integrated tube amps, but also can be used on dacs.

Note: The Core Power Ground Zero is rated at 600 watts, so it's meant for single components or from the wall with low wattage systems, not for high end systems with a 600+ watt conditioner or regenerator (will blow fuse).

$99 and free shipping at my asking price. Add 3% for PayPal or use PayPal FF. Retail is normally $600. See my feedback here and at Audiomart, Audio Asylum, Audiogon, and eBay (genegold99).

info: https://www.underwoodhifi.com/products/core-power-ground-zero (Underwood HiFi purchased Core Audio Technologies)

Reviews:
- https://www.tonepublications.com/review/core-power-ground-zero/

- https://audiophilepure.com/2021/06/26/core-power-ground-zero-599-review/

- https://headphone.guru/core-power-ground-zero-finally-a-line-conditioner-for-personal-audio/