Personally I'd ditch the Yaqin. I have yet to hear what the craze is over the brand, maybe I have not heard the right model. The Rogue is a beast with 100wpc from TungSol KT120s, not really a need for tube friendly speakers with a Cronus, plenty in reserve. You may want to try moving to the 4 ohm tap on the amp; you need to remove the top and switch the (+) wire on the terminals but it makes a huge difference with obviously difficult to drive 4 ohm speakers and many 8 ohm too. Too many tube amps is a great problem to have. Cheers! -Mike