With 4 high-resolution 26-segment LED displays and separate source selectors for left and right, the RM-4C8 is ideal for monitoring audio channels in an SDI group, or de-embedded AES/EBU channel groups. The RM-4C8 offers the same features as the RM-2S4 but with an additional source selector, so that any of the 4 channels from the selected group or bank can be independently monitored on the left and right speakers. Additionally, 4 VU meters are provided so that each channel of the selected group or bank can be visually monitored, and 4 groups of 4-channel expansion ports are allowed, so that all audio channels of an SDI signal can be monitored, using the optional RM-HD1 or RM-HDE1 cards. The RM-4C8's audio inputs are auto-detecting, for digital AES/EBU using the left XLR input, or both XLRs for analogue inputs. The inputs can be used in any combination of analogue or digital. With full remote control via GPI, RS232 or USB, a 5-band parametric equaliser, 6 front panel modifier buttons and the ability to use optional 3G/HD/SD-SDI expansion cards, the RM-4C8 is a flexible and versatile monitoring solution. The same high level of care has been taken in the design of the RM-4C8 as for the RM-2S4 to ensure that it will be the best 1U rack-mount audio monitor you will listen to.