The Marmitek Surround Anywhere is different from other wireless sets in that it avoids the 2.4 GHz frequency, which is used by various LANs and Bluetooth devices and thus is much less susceptible to interference. The output power of 2 x 20 Watt is a bit exaggerated, but there is of Amphony the model 1540, which is substantially identical to the Marmitek, but provides an output power of 2 x 40 watts and even priced lower than the Marmitek is to have.
I own both the Marmitek Surround and the Amphony product and am happy with both. The sound quality is very good. The Amphony product works due to the higher output power also very good with 8-ohm speakers during the Marmitek set is more suited for 4-ohm speakers. The power supply is 24 volts when Marmitek set and 36 volts at Amphony model 1540th
