Thanks to all for looking;
As to berning, I was very lucky to pick up the 230 zotl amp, never heard the qz.. mainly because David told me I would not need them with the merlins. Right now I must admit my system is aiming to get off the grid with an extravagant audio consulting silver rock / MIPA solution . It might do in the need for the berning , but its early days. I prefer to notice differences over weeks not seconds ;-)
E