Sennheiser XSW 2-CI1 Wireless Guitar System Leave a Comment / Uncategorized / By Alexander / May 16, 2018 81 GEARANK 81 out of 100. Incorporating 10+ ratings and reviews. Street Price: $349.95 Manufacturer: Sennheiser Features: 2.4 GHz Frequency Range: A: 548 to 572 MHz Switching Bandwidth: Up to 24 MHz Frequencies: Adjustable in 25-kHz steps 8 frequency banks, Up to 12 factory-preset channels