Welcome to the support page for
DSP520.2 In-Wall Loudspeaker

Here you will find all of the information that you require to get the most out of your DSP520.2 In-Wall Loudspeakers.

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How to install the Meridian DSP520.2 Loudspeaker

When the loudspeaker is in Standby mode a blue LED will show on the front of the loudspeaker.

The DSP520.2 comes out of Standby mode when it receives an appropriate communication signal from another Meridian product. This signal is received on the SpeakerLink input socket of the loudspeaker and is produced when the rest of the system is brought out of Standby. When this happens, the front panel LED will change from blue to white.

This can be done in two ways.

(a) IR reception can be activated and deactivated using a Meridian system remote control. Instructions for how to do this can be found in the product’s User Guide.

(b) There are RS232 commands to activate and deactivate IR reception. Details can be found in the product’s User Guide.

Each loudspeaker uses a maximum of 500W.

The loudspeaker on the left (when viewed from the listening position) should be set to “Left or Centre” and the loudspeaker on the right should be set to “Right”. The switch is required because the SpeakerLink lead feeding the loudspeaker carries both left and right audio channels. The switch “tells” the loudspeaker which channel to pick up from the lead. This is true even when each loudspeaker is fed with a dedicated SpeakerLink lead.

Loudspeakers in use as main-left, side-left, rear-left or centre channels should be set as “Left or Centre”. Set the switch to “Right” for loudspeakers in use as main-right, side-right or rear-right channels.

This sets the loudspeaker to play a balanced mix of left and right audio, allowing a single loudspeaker to reproduce all the audio present in a stereo recording. It provides a useful option for systems using multiple speakers where the listening area does not have clearly-defined left and right speaker positions. This also allows a single DSP520.2 to be used below a TV screen.

The pair of loudspeakers can be connected in a “daisy-chain” arrangement. The input of one loudspeaker should be connected to the SpeakerLink output on the controller-product. The output of this loudspeaker is then connected to the input socket on the other loudspeaker.

Yes. If cabling arrangements or other physical considerations preclude star-wiring, daisy-chaining can be used for a pair of DSP520.2 loudspeakers. This applies as long as the two loudspeakers are a “pair” as defined in a Meridian system, i.e. they are the left and right main channels, the rear-left and rear-right channels or the side-left and side right channels.

If the DSP520.2s are among the largest speakers in the system, they can be set as “Large”.  If they are among the smaller loudspeakers in the system, then it may be advantageous to set them as “Small”. This will divert low-bass (as defined by the crossover setting in configuration) away from the loudspeakers in question and send it to the subwoofer and/or the “Large” loudspeakers in the system. The exact route of the bass is determined by several factors within configuration. Bear in mind that in a system with no subwoofer, the main (front) loudspeakers are forced to be “Large”, regardless of their physical size.  If all the other loudspeakers are defined as “Small”, the main speakers will be asked to play back all the bass for the system. In such cases, defining some of or all of the DSP520.2s as “Large” could help spread the bass load across the system. This could result in improved bass reproduction at low to mid volume levels and, as the DSP520.2s feature bass-protection, even at high volumes the risk of “bottoming out” a bass drive is minimal.

Bass output can be increased, but it may require some configuration. Refer to our support documentation relating to DSW for further information.

This can be done if a Meridian 218 Zone Controller is also added to the system. The 218 has on-board DSP which can derive dedicated feeds for the subwoofer as well as the main left and right channels. The 218 features gain and filter controls to allow the subwoofer to be sonically integrated with the main loudspeakers.

Yes. There will be no need to use an external PSU with the Media Source 200.

Yes. There will be no need to use an external PSU with the Distributor 1.

Power will be provided to the specific Distributor module connected to the DSP520.2. However, the three modules within the Distributor 3 are completely independent, so power will need to be provided from elsewhere to the other two modules if they are in use.

Yes. The DSP520.2 can be used either vertically or horizontally as a centre-channel loudspeaker. The wide-range drive unit, which produces treble frequencies, is located exactly in the middle of the front-baffle of the loudspeaker. This means that when used as a centre-channel, the DSP520.2 should be sited centrally at the front of the system.

Each of the two drive units is fed by a pair of Class-D amplifiers bridged for 100W into 8 Ohms.

The back-box is an integral part of the design of the loudspeaker and plays a great part in making the loudspeaker safe to install and use. However, there are some installation situations which do not lend themselves to the use of the rough-in box. For example, this is true where the DSP520.2 is to be mounted onto framework constructed behind a cinema screen specifically for this purpose.

Yes. By default, the loudspeaker has EBA enabled and the internal switch for EBA is set to change only if the loudspeaker receives the relevant command on its SpeakerLink input. This behaviour can be changed by adjusting the internal setting for EBA using the relevant RS232 command. This allows the loudspeaker to have EBA switched on or off irrespective of any command received over SpeakerLink.

Centre Elevation allows the image from a centre-channel loudspeaker to be raised to be in line with the main left and right loudspeakers. In Meridian surround-sound installations where the DSP520.2 is mounted horizontally below a screen, Centre Elevation can be adjusted to give the impression that centre-channel sound is coming from the screen rather than below it. The setting is selectable between a minimum, a medium or a maximum elevation effect. It can be adjusted from the menu system of any Meridian Surround Controller equipped with SpeakerLink outputs. The option also exists to set Centre Elevation on the speaker via RS232. This RS232 setting is non-volatile, so if preferred it can be selected and set to a fixed level as part of the installation process.

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