The active R84A mic retains the same sonic character of the R84, but with an additional 12dB of output and a stable impedance. This gives a consistent frequency response and greater flexibility with different preamps, including those found in audio interfaces for personal computers. This is great for on-the-road musicians who might have to use a different preamp each night.
The extra 12db of output is a huge help when recording quiet sources like vocals and soft acoustic guitars. The active circuitry also prevents noise, interference on long cable runs or when operating near large lighting rigs. The R84A requires standard 48-volt phantom power to operate the active circuitry. The R84A also possesses an 18-carrot, gold-plated grill.