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DE Plan 500 S

Invisible Speaker

Key Features
  • Invisible flat transducer

  • Slim construction (width 140mm)

  • 180° nominal dispersion

  • Very linear frequency response

  • Small mounting dimension: 540 × 140 mm

  • 4 × 3" woofers + 1" high frequency driver

  • 160 watts power capacity

Fields of Application
  • Gastronomy, hotels
  • Home audio
  • Multi-room systems
  • Sales rooms

The DE Plan 500 S®transducer remains completely invisible in walls or ceilings. The patented design concept of the DE Plan series enables the flat membrane to be homogeneously deflected. As a result, the DE Plan 500 S has a wide frequency range and is extremely efficient.

de:shape®: the membrane of the DE Plan 500 S has an optimized contour with a calculated distribution of distance between the edge and the high frequency driver (patent pending). This results in unprecedented audio performance and extremely accurate sound reproduction.

Sophisticated crossover tuning gives a warm, clear sound. The DE Plan 500 S is a front and center loudspeaker designed to be used with subwoofers in home audio systems and media rooms. Its slim design means it can be positioned to the side of or under screens and in areas where space is limited.

The DE Plan 500 S is mounted facing outwards in hollow non-concrete walls and ceilings. It can also be installed in solid walls and concrete ceilings using an EGB Plan 500 S back box. First, the speaker is mounted, then the glass fiber lining included with the package is placed around the membrane and the area can then be plastered and painted.

DE Plan Installation Videos with or without a back box on Youtube

Technical Data

2-way flat transducer


4 × 3" woofers + 1" high frequency driver

Frequency range
110 Hz – 20 kHz (2 × paint-coated)
8 Ohm
Power capacity
80 watts RMS, 160 watts program

82 dB (1 W @ 1 m), half-space (flush-mounted)

Maximum SPL

104 dB @ 1 m

Nominal dispersion

540 × 140 × 72 mm

incl. mounting feet: 560 × 210 mm

Cutout size

544 × 144 mm

Wall / ceiling thickness
10 – 35 mm (incl. back box)
Installation depth
72 mm
3.8 kg
Screw-type terminals, pluggable
5 years

DE Plan 500 S

Order No.: 0405-0001

Complete incl. assembly frame, glass fiber fabric and adhesive


EG Plan 500 S

Order No.: 2303-0001

Back box

Dim. 620 × 240 × 100 mm

EGB Plan 500 S

Order No.: 2307-0001

Back box

Dim. 620 × 240 × 128 mm (incl. PVC rigid foam)

Spare parts

MR 500 S

Order No.: 0405-1007

Assembly frame