https://www.hifi-journal.de/testberichte/interview-sonderthemen/800-lab12-gordian-stromfilter-test?showall=1
Does anyone use?
http://www.6moons.com/audioreviews2/lab12_2/3.html
I had one. Nice piece of kit. Then, upgraded to a Keces BP-2400. Now a P15 is my system foundation.