Keep on-stage feedback out of your audio with the Rupert Neve Designs 5045 Primary Source Enhancer. This is a two-channel device that tames acoustic feedback in a manner similar too, but not exactly like, a gate. As such, you can use it to help boost the level of microphones in a live performance setting before feedback occurs, all without adding obvious tonal coloration.

The device sports easy-to-use controls. A Threshold control dictates the level at which the processor starts working, while the Depth parameter sets how much attenuation is applied below the threshold. The Time Constant knob gives you access to six different attack and release speeds—twelve, actually, when you consider that the RMS/Peak switch changes the behavior of this parameter. With these minimal controls, you can easily set the processor to suppress anything below the signal's optimal range.

The 5045 takes line-level from mic preamp outputs or insert sends of consoles and delivers a line-level signal that can easily feed a console or PA. Because of transformer coupling on the I/O path, the unit can interface with a wide variety of gear. It offers XLR connections on the input and output paths.