Sennheiser EM-XSW 1-A XS Wireless 1 Table Top Receiver 100209859 while the CrashGuard 421™ is

while the CrashGuard 421™ is perfectly matched to the popular Sennheiser MD 421

the Beta 87A combines superb performance with the ruggedness needed for touring and field production

Offering extended frequency response and an accurate sound stage

Maximum output level before distortion: >= 17dBu

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