Sonifex RB-SL2 Twin Mono or Stereo Limiter
The Sonifex RB-SL2 Twin Mono or Stereo Limiter is a reliable, easy-to-use tool that keeps your audio levels smooth and consistent. Whether you’re recording interviews, running a small radio station, or streaming live, this unit makes sure your sound stays clear and free from sudden peaks. It’s built for places where audio control is important but you may not have an engineer on hand.
Sonifex RB-SL2 Twin Mono or Stereo Limiter Review
This limiter delivers precision control with the flexibility to run in stereo mode or as two separate mono channels. The XLR balanced inputs and outputs can also handle unbalanced connections, making it easy to integrate into any setup. Adjustable input gain and limit threshold let you fine-tune performance, while the flashing LED gives you instant feedback when limiting is active. It’s ideal for overload protection, clean output control, and professional-sounding audio in small to medium broadcast or recording environments.
Sonifex RB-SL2 Twin Mono or Stereo Limiter Features
- Works in stereo mode or as two separate mono channels
- Keeps sound clear and prevents sudden loud bursts
- Easy-to-adjust controls for input level and limit point
- LED light shows when limiting is active
- Fits neatly in a standard 1U rack space
- Connects easily to professional or home audio gear
Sonifex RB-SL2 Twin Mono or Stereo Limiter Specs
- Adjustable input gain from -8 dB to +18 dB
- Adjustable limit threshold from -8 dBu to +28 dBu
- Frequency range 20 Hz to 20 kHz ±0.1 dB
- Maximum input and output level +28 dBu
- Balanced XLR inputs and outputs (can be wired unbalanced)
- Power 110–120V or 220–240V AC switchable, 6W max
- Size 11 in W x 4.3 in D x 1.7 in H
- Weight 2.2 lbs



