Invisible Speakers




The Monitor Audio IV140 invisible speaker is designed to deliver ‘best in class’ audio performance in concealed in-wall and in-ceiling applications.


Concealed in-wall or in-ceilings, the speaker fits into all conventional 4″ stud bays, leaving enough room for cabling. Once installed and skimmed with plaster, the speaker is completely out of sight, with paint, light wallpaper or fabric hiding it from view.

A large low-frequency transducer and two high frequency transducers provide punchy, high power bass and sound vibration. This two-way transducer design also features an integrated crossover to generate a wider frequency range and deliver crystal clear sound quality with smoother overall balance and character.



  • 2-way system with integrated crossover
  • Pre-construction speaker designed to be plastered in to create ‘invisible’ appearance
  • Low-frequency transducer, featuring high power ceramic magnetics and 40 mm voice coil
  • Dual High-frequency transducers, incorporating high power Neo magnets and 30 mm voice coils
  • Rigid MDF back box construction
  • Integrated ‘hybrid’ controlled performance back box system – Fully sealed or open-back
  • High Quality crossover – including metallised film capacitors and low loss steel core inductors
  • Protected against overload by PTC’s (automatically re-setting breakers)
  • Ideal for home cinema, distributed audio, hospitality, retail and commercial background music applications (where visible discretion is key)




Frequency Response (-6 dB)

75 Hz — 18 kHz (CP sealed)
55 Hz — 18 kHz (Open back)

Drive Unit Complement

1 x Low-Frequency transducer
2 x High-Frequency transducer

Power Handling (RMS)

50 Watts (full range – IEC268-5 rating)
100 Watts Music program (Using Minimum 80Hz High Pass filter)

Sensitivity ([email protected])

82 dB (when installed as directed)

Invisible speaker not only offers the advantages of eliminating unwieldy or inconvenient boxes from the room, but it also gets rid of those ugly cables and wires that are so easy to trip over. It does not, however, eliminate the visual presence of speakers in the room, as nearly all architectural speakers utilize round, square, or rectangular perforated grilles. Sure, such grilles can usually be painted to match the color of the wall, but they remain a visible distraction from what might otherwise be a beautifully designed décor.

- Luca Andrea