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Meridian 251 User Manual

Powered zone controller
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251 POWERED ZONE CONTROLLER
USER GUIDE

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Summary of Contents for Meridian 251

  • Page 1 251 POWERED ZONE CONTROLLER USER GUIDE...
  • Page 2 Meridian 251 Powered Zone Controller User Guide Important safety instructions • Read the instructions. Safety warnings • Keep these instructions.   • Follow all instructions. WARNING! • Do not use this apparatus near water. RISK OF ELECTRIC SHOCK – DO NOT OPEN •...
  • Page 3 Meridian 251 Powered Zone Controller User Guide To avoid interference Climate The equipment has been designed for use in moderate climates • Do not position the unit near strong electrical or magnetic and in domestic situations. radiation, such as near a power amplifier.
  • Page 4 MHR: this product incorporates copyright protection technology covered by certain patent applications and intellectual property Meridian Audio Ltd, Latham Road, Huntingdon, of Meridian Audio Ltd. This technology is provided for the Cambridgeshire, PE29 6YE, England. express purpose of securely containing copyright audio within the Meridian System only.

  • Page 5: Table Of Contents

    Meridian 251 Powered Zone Controller User Guide Contents Introduction Specifications Unpacking Applications Configuring the 251 Powered Zone Controller Controlling the 251 Powered Zone Controller Index...

  • Page 6: Introduction

    Inputs tone adjustments as well as balance and volume controls, for The 251 provides a choice of audio input connections to cater for use with power amplifiers or active analogue speakers. The a range of installation requirements. These include a digital (co-ax/...
  • Page 7 • A mount kit for mounting the 251 under a shelf, on a wall, or in a backbox; see Mounting a 251 Powered Zone Controller , System integration page 13.

  • Page 8: Specifications

    Audio outputs Signal processing • 2-channel loudspeaker outputs on terminal blocks supplied The 251 uses Meridian’s proprietary DSP software to provide with mating connectors suitable for 12-24 AWG wire. the following powerful features: Up to 100W per channel into 4 , or up to 65W per channel Ω...

  • Page 9: Unpacking

    251; see • Two Phoenix speaker connectors. Installing 251 Powered Zone Controllers in a rack tray , page • Quick Start Guide Please contact your retailer if the power cord has the wrong plug for your territory.
  • Page 10 Meridian 251 Powered Zone Controller User Guide Front-panel indicators Audio outputs The currently selected source is indicated by one of five white Use this output To connect to this indicators on the front panel. Right +/– , Loudspeakers of between 4Ω and 8Ω, using In standby the leftmost indicator shows blue.
  • Page 11 Meridian 251 Powered Zone Controller User Guide Subwoofer options The 251 Powered Zone Controller provides a range of options for using the loudspeaker outputs and analogue outputs to connect to the main left and right loudspeakers, and mono or stereo subwoofers. The following table shows some typical...

  • Page 12: Applications

    Volume, mute and standby will be controlled from the Sooloos UI. To add further functionality download the Meridian App loudspeaker cables. for the iPad, which allows control of all the 251 features; see • Connect the 251 to the LAN using an RJ45 cable.
  • Page 13 Meridian 251 Powered Zone Controller User Guide Audio-visual system Loudspeaker Television Loudspeaker OPTICAL NETWORK – – Active subwoofer 251 Powered Zone Controller LOUDSPEAKER ANALOGUE DIGITAL NETWORK OUTPUTS Router – – Wi-fi Sooloos Digital network source...
  • Page 14 15. • Connect the TV to the Optical input socket. • Connect the 251 to the LAN using an RJ45 cable. • Optionally connect an analogue source using 50Ω RCA cables, and/or a digital source using a 75Ω RCA cable.
  • Page 15 Meridian 251 Powered Zone Controller User Guide Distributed zone Automation Matrix ANALOGUE NETWORK Router Wi-fi Loudspeaker 251 Powered Zone Controller Loudspeaker LOUDSPEAKER ANALOGUE DIGITAL NETWORK – – – –...
  • Page 16 Meridian 251 Powered Zone Controller User Guide 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.
  • Page 17 Rack Tray for this purpose. rack tray Note that if only one 251 is being installed in a tray then the open side of the fascia can be blanked by one of the knock- A 251 Rack Tray is available separately, to allow two 251s to be outs included in the tray.
  • Page 18 The kit consists of two plates and four screws, allowing the 251 Powered Zone Controller to be mounted in either of two A universal mount kit is available separately, to allow a 251 to orientations, as shown in the following diagrams: be mounted on any flat surface, such as under a shelf, on a wall, or in a backbox.

  • Page 19: Configuring The 251 Powered Zone Controller

    Discovering the IP address of the 251 • Identify the IP address assigned to the 251 (see below). To discover the IP address of the 251 you can use any of the Type this address into the address bar of a standard web •...
  • Page 20 Kitchen or Study. Audio output Values set here will be used by the 251 after power up. They Phono output and Amplifier output: Can be independently can be adjusted at run time and stored (via the Automation set to Left/Right, corresponding to the main left and right Interface).
  • Page 21 Start volume: Specifies the initial volume for the outputs. The on the Automation interface. start volume is set when the 251 is first powered up, and a few Audio input: Each of the 12 logical sources can be assigned seconds after going into standby.
  • Page 22 IR mode: The IR mode is only relevant if a G12 has been Comms Type: For Comms-connected systems, ensures that connected to the 251. In this setup the installer should set the the appropriate set of commands is sent to the product. The...
  • Page 23 Meridian 251 Powered Zone Controller User Guide Ethernet Allows you to change the Ethernet configuration. Note that incorrect settings may make the 251 unreachable via the web page.

  • Page 24: Controlling The 251 Powered Zone Controller

    Meridian 251 Powered Zone Controller User Guide Controlling the 251 Powered Zone Controller The Meridian 251 can be controlled using the following options: Third-party IR inputs • Via Meridian Comms from another product such as a Meridian The Meridian G12 IR sensor has the following pinout: CD Player.

  • Page 25: Index

    Meridian 251 Powered Zone Controller User Guide Index Address option 17 back panel connections 4 Ethernet connection 19 Amplifier output option 15 Balance option 16 Ethernet panel 18 analogue inputs 5 Bass option 15 analogue outputs 5 applications FIFO option 17...
  • Page 26 Meridian 251 Powered Zone Controller User Guide IR mode option 17 SpeakerLink input 5 IR sensor pinout 19 specifications 3 panels Startup panel 16 Audio menus 15 Startup source option 16 Audio output 15 Start volume option 16 Left/Right Filter option 15...