Sonifex Redbox Frequently Asked Questions (FAQ)
	This FAQ (frequently asked questions) answers some of the popular questions asked about the Redbox range. If you have any specific questions regarding the operation of Redboxes which aren't covered below, please contact your nearest distributor, or Sonifex directly.
Related Links: > The Redbox Range > Sonifex Online Store > Redbox Brochure > Handbook for Analogue Redboxes > Handbook for Digital Redboxes

How do I set up the RB-SL2 limiter? The easiest way to set up the limiter is as follows, taking one channel at a time in mono mode : First turn the limit control to maximum (fully clockwise). Using an audio oscillator, inject a 1000Hz tone at 0dB (775mV into a 600 ohm load) at the input. Monitor the output with an audio analyser and adjust the gain control to give you the required output gain/attenuation. Next inject a tone at a higher level than you need to limit to (i.e. if you want to limit at 6dB higher than your output level, inject 7dB). Then turn the limit level anti-clockwise until the output reads the desired level and the LED on the front panel flashes (red/yellow for CH1 and green/yellow for CH2). In stereo mode CH1 controls the levels for both outputs.