Meridian DSP 640.2 In Wall Speaker Each


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Powered by Meridian’s exclusive ‘CLASS-M’ DSP engine and integrated with ‘DYNAMIC’ Hi-Res amplifiers, the DSP640.2 is perfect for delivering Meridian’s renowned audio quality discreetly in any living or cinema room. The DSP640.2 uses a new octo-amp design with a bridged pair of amplifiers for each of the four drive-units. Each pair of amplifiers is capable of delivering 100W RMS into 8 Ohms. A single DSP640.2 can deliver full-range sound at an SPL of 105dB at over 9m with bass extension down to 35Hz. With the latest DSP technologies from Meridian also on-board, including Enhanced Bass Alignment, Centre Elevation, Dynamic Bass Protection and L + R mode, the DSP640.2 is an ideal choice whether used in stereo systems, full surround-sound set-ups, soundbar applications or other single-speaker installations.


  • Ultra-shallow (100mm deep) box design delivers full DSP loudspeaker performance in-wall, while the rough-in box and frame system allows for easy installation and precise positioning.
  • Audio enhancement technologies built in include Enhanced Bass Alignment (EBA), FIFO buffering, DSP upsampling, apodising filters, Meridian Centre Eelevation and Meridian High Resolution (MHR).
  • Features 2 x 140mm long throw bass driver and 2 x 85mm wide-range drivers for full-frequency response.
  • All-new octo-amp design with Class-D amplifiers with feedback on the output stage which lowers output impedance and reduces distortion and noise to levels experienced by only the best Class-AB amplifiers.
  • Each drive-unit powered by a bridged pair of amplifiers; each pair capable of delivering over 100W into 8 Ohms.
  • L + R mode to allow a single speaker to be used on its own while still reproducing all the audio present in a stereo recording makes the DSP640.2 a great choice for use as a soundbar below a screen – especially when combined with Centre Elevation.
  • Developed for maximum dispersion and listening area plus minimum unwanted diffraction. • Grille may be painted to match interiors.



On-board DSP provides thermal and dynamic bass protection while retaining very accurate transients, ensuring that when the loudspeaker is played at high levels – even over prolonged periods of time – it always delivers a clean, detailed and accurate sound.


Meridian’s Centre Elevation technology which is based on psychoacoustic research raises the perceived image location from an under-screen loudspeaker so that it appears to come from the centre of the screen. ENHANCED


Meridian’s innovative Enhanced Bass Alignment (EBA) technology uses two different technologies to time-align high, mid and upper bass frequencies with the low bass, resulting in audibly improved bass transients and added life and clarity.


Meridian’s unique suite of proprietary technologies includes FIFO buffering, DSP upsampling, apodising filters and MHR (Meridian High Resolution) to get the very best performance from all digital sources


The DSP640.2 is made up of a slim, self-contained, all-metal enclosure with a metal mounting frame. Its purpose-built rough-in wall-box is available separately. The rough-in box is first fitted to the wall, the frame is mounted to it and the loudspeaker enclosure is then bolted to the frame. The rough-in box and frame can be adjusted for various wall materials and depths. A male-to-female IEC mains lead is supplied with the loudspeaker in order to connect it to the powered rough-in box which is wired to power

  • The loudspeaker enclosure is fitted to its frame which is designed for mounting into new-build partition and stud style walls or for retrofitting into stud or brick/stone-built walls.
  • The paintable, perforated steel grille supplied with the loudspeaker can be fitted where required. The grille is held in place by powerful rubber-coated magnets which are attached to the aluminium extrusion that forms the front panel of the loudspeaker enclosure.




Meridian SpeakerLink connector (RJ45)


Meridian SpeakerLink connector (RJ45)


Peak SPL: 1m - 117dB

Bass extension: 35Hz


Wide-range drivers (each): 2 x Class D amplifiers bridged for 100W into 8 Ohms

Bass drivers (each): 2 x Class D amplifiers bridged for 100W into 8 Ohms


2 x 140mm long-throw design


2 x 85mm with neodymium magnets



On/off rocker switch, Fuse holder, IR window

Rocker switch selects “Right”, “L + R”, “Left or Centre”

RS232 socket – 3.5mm minijack (long version – 18.6mm)

LED indicators show power status and configuration settings


LED indicators to show power status and configuration settings


IEC mains cable included with loudspeaker for connection to rough-in box 


HEIGHT: 1230mm [48.5in] (Excludes frame and cable feed channel) 

WIDTH: 203mm [8in]

DEPTH: 102mm [4in] 

WEIGHT: 15 kg [33 lbs]