I have purchased a Morel speakers system (3 LI-1 for Back and center, 2 SI-2 for the front and RS-10A as the sub) powered by a Yamaha RVX-550 receiver. The system sounds great; however, it seems that if it is not balanced which cause me headaches and a weird physical feeling in the ears.
The speaker system is configured as small in the receiver (except from the SI-2 which are large), the wiring is correct and the cross over is set to 90.
Anyone ever experienced something similar? Is there any configuration I’m missing?

