I agree.
My wireless systems are Sennheiser. One is EV100 headset and the other is handheld. Both are in the $500-600 range. Excellent quality, range, and reception.
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact