Concert 88 | Samson

cr88Looking to add another frequency-agile UHF wireless system to your Expedition XP310w or XP312w Rechargeable Portable PA? The Concert 88a Series features Concert 88 SeriesTurn the CR88 on momentarily to confirm that the unit is receiving power. You’ll see the LED display lht up. Then turn the CR88 power off. With your amplifier or mixer off and volume