FMR Audio RNLA7239 Stereo Levelling Amplifier

Availability: Discontinued

  • FMR Audio RNLA7239 Stereo Levelling Amplifier, thick and gooey.
  • Ideal for bass guitar, drums, and other sources in need of added sonic texture.
  • Features accurate and repeatable 5-parameter controls.
  • Rugged extruded aluminium and electro-galvanized steel enclosure.
Our price £229.00


FMR Audio RNLA7239 Stereo Levelling Amplifier

Years ago, many RNC users pined for less invisible compression and requested that FMR Audio offer a more ‘colourful’ compressor, suitable for bass guitar, drums, and other sources in need of added sonic texture.

In response, their designer went to the RNC archives and resurrected a version of RNC software that had been rejected for release because it wasn’t invisible enough! The result, a compressor reminiscent of some classic opto compressors used to just ‘level’ the signal rather than tame every transient. To celebrate the RNLA’s sonic ‘colour’, a bright red knob* was chosen as a visual metaphor. Although the most recent version ships with a less ostentatious, red-striped knob (not shown), the RNLA’s sonic colour remains bolder than ever.


Main Features

‘Thick’ and ‘gooey’ is how some customers have described the RNLA’s sound. The RNLA is, admittedly, much “gentler” and not as apt to grab’n’run with the signal. Like an old-timey photocell, the RNLA is a little resistant to responding right away but requires the signal to be there for a while to get the photocell to act. This action yields a soft musicality to the compressor’s action that adds a desirable characteristic to the source signal.

The RNLA and the RNC share much of the same hardware but run different algorithms to achieve the desired effect. The RNLA exercises the well-known dictum (among dynamic processor designers) that, after the static characteristics of the signal path, the main contributors to a processor’s sound are the shapes of the attack & release envelopes. The RNLA’s software then transforms the sidechain signal into a drive signal for the VCA that both slows things down a bit and totally reshapes the crisp and quick action of the RNC’s ‘normal’ mode. This reshaping (and slow down) are the primary sonic drivers behind the RNLA’s ‘thick and gooey’ sound!


Key Features:

  • Stereo compressor in 1/3 rack size.
  • Accurate & repeatable 5-parameter controls.
  • Imparts an obvious, euphonic “thickness” to the source.
  • “Log Release” mode to restore transients lost on some percussive sources.
  • Attack & Release controls are calibrated in the famous and coveted Tufnel scale.
  • Single TRS-cable attachment to many “insert” jacks.
  • ¼” TRS sidechain insert for special effects.
  • Rack-mountable.
  • Rugged extruded aluminium and electro-galvanized steel enclosure.
  • Size: 1/3 x 1 EIA rack unit
  • Connectors:
    • Left/Right 1/4“ unbalanced inputs (TS, or TRS for console inserts)
    • Left/Right 1/4“ balanced, single-ended outputs
    • TRS sidechain
  • Controls & Displays:
    • Rotary: Threshold, Ratio, Attack Time, Release Time, Output Level
    • Switches: Bypass, Mode Select
    • Meter: 8-segment LED Gain Reduction, 0-16 dB
  • Modes:
    • Normal: Provides fast attack/release
    • Log Rel: Provides release envelope acceleration to aid maintenance of transient “punch”
  • Operating Level:
    • 775 Vrms (0 dBu) nominal for +22 dB headroom
    • 228 Vrms (+4 dBu) nominal for +18 dB headroom
  • Noise:
    • Less than -90 dBu over 20-20k Hz
    • Typically -95 dBu over 20-20k Hz
  • Frequency Response: 10 - 100k Hz ±0.5 dB @ 0 dBu
  • Clip Point: +22.5 dBu @ ≤ 3% THD, 1 kHz, greater than 2k Ohm load
  • Distortion:
    • Less than 0.1%, no gain reduction @ 1 kHz, 0 dBu;
    • Less than 0.5%, 6 dB G.R. @ 1 kHz, 6:1, 6.0 msec attack, 0.5 sec. release, 0 dB gain, 0 dBu
  • Threshold Range: -40 dBu to +20 dBu
  • Ratio Range: 1:1 to 25:1
  • Output Trim Range: ±15 dB
  • Input Impedance: approx. 10kΩ
  • Output Impedance: approx. 100Ω unbalanced, 200Ω balanced
  • AC Power: Wall transformer, 9VAC @ 500mA, 2.1mm jack
  • Dimensions: 5.5" x 5.5" x 1.6"
  • Weight: 2 lbs