Really Nice Compressor for 500 Series Boxes

OUR PART #:  RNC-500 Write the First Review.

Our Price: $275.00
List Price: $299.00
You save 8%!
  • Single-channel, 500-series version of the RNC
  • Balanced input & output
  • Linkable for stereo operation
  • Maximum input/output levels of +28dBu
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This RNC-500 is a variation not only fitting the increasingly popular API500 series rack, but delivers an improved dynamic fidelity befitting the format! This dynamic-range compressor provides positive signal control while leveraging its pedigree for simultaneously reducing collateral sonic damage. Additionally, features that most folks won't overtly notice, but will be glad that they're there: overcurrent protection prevents a rare failure from bringing down your whole 500-series rack, an early-warning power supply detection that causes the RNC500 to enter bypass—irrespective of the front panel switch position—to avoid power-down "pops", a robust 18 guage electro-galvanized enclosure that keeps the delicate electronics safe from harm and helps protect against Electromagnetic Interference (EMI) from affecting things inside or outside of the enclosure.

How It Sounds

As with the original RNC, the RNC500 can exhibit a sonic neutrality while giving the recordist a level-of-control difficult to obtain without adding unwanted artifacts. Unlike the original RNC, however, the RNC500 possesses a sonic "beefiness"—a growl, if you will—that adds a slight, but very compliant, bottom-end to the source material. Much of this "un-RNC like" growl is a result of the higher operating I/O levels like those present on the RNC500. It seems that the harder the RNC500 is hit, the heftier the sound. Overall, we'd still characterize the RNC500 as "clean", but with a hint of attitude...that's under your control!

How It's Done

Like all of FMR's dynamic audio processing products, they've replaced sidechain electronics with chunks of software to accomplish both a bill-of-materials cost reduction while simultaneously improving dynamic performance accuracy and consistency. The beauty of this approach is that the main signal path (all dynamic audio processors have two paths: a sidechain/control path and the main audio path) remains firmly in the analog domain thereby avoiding latency and digital conversion artifacts that are sometimes unwanted. Coupled with a faster (40x) processor and higher-resolution (24-bit) arithmetic, sealed switches & relays, multi-layer printed circuit board (PCB) the RNLA500 will deliver smooth, controllable and reliable compression for years to come.


  • Single-channel, 500-series version of the RNC
  • Balanced input & output
  • Linkable for stereo operation
  • Maximum input/output levels of +28dBu
  • Overcurrent protection circuits safeguard 500-series rack operation in case of power supply faults
  • 24-bit arithmetic for smoother compression
  • SuperNice & Normal modes
  • Accurate signal level metering via power-saving "dot" gain-reduction display
  • Sealed, C&K subminiature toggle switches
  • Blue-anodized, machined aluminum knobs

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