Can invisible speakers go in plaster walls in a Kansas City house?

The short answer. Sometimes. IntegrateIT, in Overland Park, installs Sonance Invisible and Stealth Acoustics across the Kansas City metro. Both are finished over like drywall, so a drywall wall with a thin acrylic plaster finish can work. Original lime plaster over wood lath is a poor fit, and neither maker publishes a method for cutting into it. We look at the wall first and say so when the answer is no.

Houses in Mission Hills and Brookside often have plaster-and-lath walls. Prairie Village ranches often have lath and plaster on the main level, with drywall in later additions. That mix decides most of the answer, so we check what is behind each wall, one wall at a time.

What the makers publish

An invisible speaker plays through the surface, so the finish over it has to stay thin and flexible. Sonance’s finishing guide caps the total finish over the speaker at 3 mm. It allows Venetian plaster only if it is acrylic-based, checked on the plaster’s safety data sheet, and rules out lime and mineral plasters. It also lists limewash paint over a Level 5 finish.

Stealth Acoustics’ install page caps compound on the speaker face at 1/16 inch, or 1.5 mm, and says that limit still applies to finishes such as Venetian plaster. It accepts a light orange-peel texture and does not recommend heavy knockdown or trowel finishes. We would ask the maker before promising any specialty finish.

Sonance says most traditional plasters are wrong for invisible speakers because of the number of coats and their lime or mineral content. Neither maker’s page says how to mount a speaker in existing plaster over lath, or whether veneer plaster is acceptable, so we ask the maker and do not guess.

When the answer is yes

• The wall or ceiling is drywall, in an addition or a gutted and rebuilt room, and the finish is paint or a light texture.
• The decorative finish is a thin acrylic-based plaster, within the maker’s limit, proven on a mock-up.
• A finisher and a painter are on the job, in order, and know the thickness limit.

When the answer is no

Original plaster over wood lath that is staying is the clearest no. Cutting a speaker opening in it risks cracking the field around the cut, and the repair has to blend into a finish built up by hand. Lime or mineral plaster is a no for Sonance by its own guide. A masonry wall with no cavity is usually a no for any in-wall speaker. A heavy hand-troweled finish is a no for both makers.

In our judgment a period plaster ceiling in an intact room is also a no, even when a patch would technically work.

What we do instead

Our work in these houses starts in the attic and the basement. We route wire through the paths the house already offers, plan plaster patching into the job and avoid opening a wall we cannot close well. Where original plaster stays, we would rather add a discreet audio zone than cut a period ceiling. The options, roughly in the order we raise them:

• A conventional in-ceiling speaker in a ceiling that a renovation has already opened and rebuilt in drywall.
• A conventional in-wall or in-ceiling speaker with a painted grille. Invisible vs in-ceiling speakers compares them.
• Invisible speakers only in the drywall parts of the house, such as a rebuilt kitchen or an addition.

Our list of cases where invisible is the wrong call covers the rest of the rooms, and the finisher’s brief covers what the trades need to hear when a wall does qualify.

How we check a plaster wall

• Find out what is behind the finish: plaster over lath, plaster over drywall, or drywall alone. We look from the attic or basement where we can.
• Ask what the plaster is, lime or acrylic, and what is on top of it.
• Make a mock-up of any finish outside the maker’s guide. Sonance asks for one, and we would do the same for Stealth Acoustics.
• Pick the location with the wall construction and the sound both in mind.

Our invisible speakers service page explains how we run these jobs. The maker pages are Sonance Invisible and Stealth Acoustics. We offer a no-cost site walk for older houses.

About IntegrateIT. We have integrated hundreds of homes across the Kansas City metro since 2021, from our showroom and design center in Overland Park, which is by appointment and has a working Control4 system, Lutron lighting and shades, and Josh.ai voice control, and a large Coastal Source selection. Control4 Platinum Dealer with a Control4 Certified Showroom · Lutron Certified Dealer, HomeWorks Certified and Ketra Certified · Crestron dealer.

Daniel Alon, co-founder, IntegrateIT. Overland Park, KS. November 2026.

Further reading

Where to go next if this article gave you the framework but you want the brand- or install-specific depth.

• Service: invisible speakersHow we plan and run invisible speaker jobs.→
• Sonance Invisible · Kansas CityHow we plan and finish invisible speakers.→
• Stealth Acoustics · Kansas CityThe other invisible line we install.→
• Article: when not to choose invisible speakersThe honest cases.→
• Article: what to tell the drywall finisherThe finishing rules from the maker.→
• Article: invisible vs in-ceiling speakersWhich rooms get which.→

Choosing speakers?

Book a no-cost site walk. We check what is behind each wall and tell you where invisible fits and where it does not.

Call (913) 804-7575 Text us Plan a site walk