Ceiling and in-wall speakers

IS4C CommerciaI Invisible Series Speaker Sonance

Product Code: SO-40127

RRP $1,799.00
Unit of Measure


5 Year
Technical Specifications
Brands Sonance
  • Details
  • Downloads
  • Where to Buy
  • Ordering

Sonance IS4 C Invisible Speaker


  • The benchmark for performance and installation flexibility for invisible speakers.
  • Fully concealed within walls or ceilings for a totally invisible result. 
  • 70 / 100 Volt with 8 Ohm bypass
  • 6 different voltage tap settings.
  • E.A.S.E. data available.
  • 170 deg hemispherical dispersion to achieve wider coverage with fewer speakers.
  • Can be finished with up to 1/8" (3mm) of flexible material including finishing compound and paint, venetian plaster, wallpaper or wood veneer.
  • Built in enclosure to reduce sound transfer to adjacent spaces.
  • Used in luxury retail boutiques including Louis Vuitton, Gucci, Prada, Miu Miu, Fendi, Barney's of New York and Tom Ford.

The IS4 C is for any commercial or residential settings where a 70 or 100 volt system is being used. The IS4 C features all the industry standard tap settings as well as an 8-ohm bypass.

Includes integrated backcan enclosure


Tweeter 4 sq. in (27 sq. cm) planar diaphragm, driven by a 1" (25mm) voice coil
Midrange 17 sq. in (110 sq. cm) planar diaphragm, driven by a 1" (25mm) voice coil
Woofer 113 sq. in (732 sq. cm) planar diaphragm, driven by a 2" (50mm) voice coil
Frequency Response 40Hz - 20kHz ±3dB
Impedance 8 ohms nominal; 6 ohms minimum
Dispersion 170º hemispherical up to 10 kHz
Power Handling 100 watts RMS
Transformer Taps Primary voltage: 70V / 100V Primary taps (70V): 0.5W, 1W, 2W, 4W, 8W, 32W Primary taps (100V): 1W, 2W, 4W, 8W, 16W, 32W 8-ohm bypass
Sensitivity 90dB SPL (1 watt/1 meter)
Finish Paper surface ready for up to 1/8" (3mm) flexible material such as joint compound, plaster, wallpaper and paint.
Overload Protection Three independent self-resetting gel switches (low, mid and high)
Environment Temperature 0º - 125ºF (-17.7º - 51.7ºC)
Speaker Depth 3 11/16" (94mm) with enclosure
Shipping Weight 28 lbs (12.7 kg) each
Cut-Out Dimensions (W x H ) 16 1/8" x 24 1/8" (409mm x 613mm)

Ordering from Amber Technology

Logging in

New to Amber Technology?

You can place an order using guest checkout, and we’ll email your order details when we ship.

You can register by following this link. When you register, we will retain your order history and checkout information for future transactions. Registration is quick and free. We’ll never share your registration details outside Amber Technology.

Are you an Amber Technology account customer?

Your user id is the email address that’s recorded for your account. If you don’t know or have forgotten your password, please reset it using this link.

If you need help with any login or site-related issues, please contact us here.


Orders placed though the Amber Technology website are despatched from our Sydney warehouse. Orders placed before 1.00pm Sydney time (for items in stock) will generally be shipped on the same day. 

We ship using Australia Post and Startrack Express. We deliver Australia-wide to residential, business and PO box addresses.

Shipping is free for all orders over $275 including GST (effective 1 March 2018). There is a $22 (including GST) shipping and handling charge for all orders under $275 including GST. 


You can track your shipment through the web sites of our couriers:

Australia Post

Star Track Express 

We will email the tracking number for your shipment shortly after it’s been despatched. If you have any questions regarding shipping, please contact us.


Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.

All items purchased from Amber Technology will be covered under warranty. The duration and terms of this warranty are specified by the manufacturer unless otherwise stated. Warranty information is available on the individual product listings on this site.

Refurbished items will include a 12 month warranty unless otherwise stated.

Please contact us if you have received an item which has been damaged in transit or is otherwise not working correctly when you receive it. Subject to availability, we will arrange for a replacement item to be despatched and for the faulty item to be returned to us. 

Amber Technology maintains a nation-wide network of carefully selected Authorised Service Agents to ensure that you are never far from convenient, expert technical and service support. If your item develops a problem and requires servicing under warranty, please contact your local Authorised Service Agent.

Stock Availability

The availability of stock is communicated via the indicator of each product listing page. "Available" means that reasonable stock is in our warehouse, ready for immediate shipment. "Limited Stock" means that we have only a small number of items in stock. "Out of Stock" means this item is currently unavailable for immediate shipment - orders placed for ‘Out of Stock’ items will be fulfilled as soon as replacement stock arrives.

"Special Order” items are products that are not generally kept in stock in Australia. Lead times for Special Order items vary depending on country of origin, manufacturer’s stock levels, factory production schedules and/or incoming shipment transit times. Please contact us for an estimate as to the likely lead time.

Refurbished items

If refurbished stock is available, this will be shown on the summary page for the product. If a product listing only allows you to choose refurbished stock, we are not holding new stock and we can no longer obtain new stock.

Refurbished items are always in perfect working order and will include all accessories. Refurbished items are may

  • have a damaged carton
  • have been used for demonstrations
  • have been repaired
  • have minor imperfections that do not impact performance.

Refurbished items include a 12-Month warranty unless otherwise stated.

Technical Support

Please visit the Get Support page to find a service agent, log a service ticket, or ask a technical question about your product.


Please contact us if you have received an item which has been damaged in transit or is otherwise not working correctly when you receive it. Subject to availability, we will arrange for a replacement item to be despatched and for the faulty item to be returned to us.  

Related Products

  inc GST
RRP $2,999.00
  inc GST
RRP $1,999.00
  inc GST
RRP $1,459.00
  inc GST
RRP $1,100.00