Meridian 251 Operation & User’s Manual

8 Audio-visual system NETWORK OPTICAL OUT NETWORK Television Active subwoofer Loudspeaker + – Loudspeaker + – LOUDSPEAKER OUT ANALOGUE OUTPUTS – + + – 251 Powered Zone Controller Router Sooloos network Wi-fi DIGITAL IN Digital source ...

7 Applications Minimal system LOUDSPEAKER OUT NETWORK Loudspeaker + – – + + – Loudspeaker + – 251 Powered Zone Controller Router Sooloos network This is a simple, standalone system replaying audio from a Sooloos system, using the Sooloos UI to control the volume. Connect the loudspeaker outputs to the loudspeakers, using loudspeaker cables. Connect the 251 to the LAN using an RJ45 cable. • • Select the zone in the Sooloos UI and play music in the usual way. Volume, mute and standby will be controlled from the Sooloos UI. To add furthe ...

12 Installing 251 Powered Zone Controllers in a rack tray A 251 Rack Tray is available separately, to allow two 251s to be mounted in a standard 19" rack. The Rack Tray is supplied with the necessary screws. The MAC address of each 251 is provided on the base of the unit, and we recommend that this is recorded on the tray as it is installed so that it can be identified in future. Adhesive labels are supplied with each Rack Tray for this purpose. Note that if only one 251 is being installed in a tray then the open side of the fascia can be blanked ...

11 This layout is intended to play back audio in a single zone as part of a larger, whole-house, automation system. The 251 is located in a central rack along with the automation system’s audio matrix. Connect the loudspeaker outputs to the main left and right loudspeakers, using loudspeaker cables. Connect the audio matrix to the 251 analogue input using phono leads. Connect the 251 to the LAN using an RJ45 cable. The system can be controlled using a remote control for the automation system; it will have access to the 251’s Automation Interf ...

17 Sensitivity: For analogue inputs you can select one of five sensitivities: the maximum RMS voltage that can be input before clipping occurs in the ADC. Trigger: Can be set to On, Off, or LV (Last Valid) to control the trigger output. Note that the trigger is always off in standby. FIFO: The FIFO box would normally be checked, but can be unchecked for digital sources with a poor quality clock that the 251 is unable to reclock. Validity: Some sources, such as the Meridian CD players, use the Validity flag in the S/PDIF audio stream to indicate t ...

21 IR mode option 17 IR sensor pinout 19 L Left/Right Filter option 15 Left/Right mix option 15 Legend option 16 Lipsync option 17 loudspeaker outputs 4 M MAC address 12 minimal system 7 mounting 13 MQA status 5 O optical input 5 outputs 5 P panels Audio menus 15 Audio output 15 Comms configuration 17 Ethernet configuration 17 Identification 15 Source configuration 16 Phase option 16 Phono output option 15 Product Address option 17 R rack tray, installing in 12 registration iv S safety warnings iii Sensitivity option 17 ...

8 Audio-visual system NETWORK OPTICAL OUT NETWORK Television Active subwoofer Loudspeaker + – Loudspeaker + – LOUDSPEAKER OUT ANALOGUE OUTPUTS – + + – 251 Powered Zone Controller Router Sooloos network Wi-fi DIGITAL IN Digital source ...