How it works in the path
Passive design is the headline spec that matters most here. The PA421B draws zero watts — nothing to power, nothing to configure, nothing to fail mid-show in the way an active component could. The tradeoff is insertion loss: combining four RFRadio Frequency — the wireless part of wireless. RF planning is why big rigs scan, coordinate, and combine antennas instead of hoping. signals passively means each transmitter sees some loss before the signal reaches the antenna, so you'll want to verify your link budget still has enough headroomThe margin between your normal level and where things clip — headroom is what absorbs the snare hit you didn’t see coming. for your venue size. At 1UThe standard slice of rack height: 1U = 1.75″. A 3U box takes three slices; half-rack gear pairs two units side by side in one. and 200mm deep, it sits cleanly in a standard IEMIn-Ear Monitor — earpieces that replace floor wedges, feeding each player their own mix. The reason this whole rack exists. rack without reaching back into the bay. At 1.4 kg it's light enough that it won't stress a shelf mount, though you should still rack it properly.
