Tran, I'm using the Zu Mother on my Primare I30 I have also had a SimAudio I-7 and the GamuT DI-150 with great results. I have just switched to the Kci Power Cord and it's smoother with the solid state gear. I have a Cary SLI80 Signature F1 coming and I'm going to try the Zu Mother on tubes. You will be very happy with the Mother over the Zu Bok as I also had that cable and the Bok is better suited for solid state. But the Kci is so well made with Furutech ends and not the size of a firehose that I have no problem recomending them. They sounded more natural than PS Audio, Cardas, and Zu.
