Sonance Invisible Series IS6T Speaker Manual

Important Safety Instructions

READ THIS DOCUMENT IN ITS ENTIRETY BEFORE ATTEMPTING USE.

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings. ⚠️
4. Follow all instructions.
5. Clean only with a dry cloth.
6. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
7. Do not install near a heat source such as radiators, heat registers, stoves, fireplaces, or other apparatus (including amplifiers) that produce heat.
8. Only use attachments/accessories specified by Sonance.
9. To be installed in indoor locations only.
10. Refer all servicing to qualified service personnel.

Box & Contents

• (1) Invisible Speaker with Cutout Template
• (1) Stainless Steel Screw Set
• (4) 1/16" (1.6mm) Shims
• (4) 1/8" (3.18mm) Shims

Product Description

The Sonance Invisible Series speakers, featuring Motion Flex Technology, offer advanced engineering for unparalleled acoustic performance and installation enhancements. These speakers allow for a wider range of applications with more consistent results, redefining what is possible from an invisible speaker. This line incorporates Wave Flex drive units, carbon fiber Air Flex woofers, and acoustically-isolated baffles, providing up to 180 degrees of smooth off-axis response. The innovative Sonance DISC System enables non-destructive measurement of finish thickness for consistent and repeatable installation results. Sonance DSP amplifier presets are recommended to maximize performance.

Features

• In-wall or In-ceiling installation.
• Compatible with 1/2" (12.5mm) & 5/8" (15mm) drywall using included shims. Supply your own shims for thicker substrates.
• Can be finished up-to or finish-over with up to 1/8" (3mm) flexible topping compound or finish material.
• 170-degree hemispherical dispersion.
• 30W multi-tap 70V/100V transformer with 4-ohm bypass and Sonance Laminated Core Technology for full-range, high-fidelity audio.
• Embedded depth discs allow installers to verify finish material thickness with the optional DG-1 DISC System Depth Gauge (SKU 93491).
• Integrated, sealed metal rear enclosure for consistent installs in commercial applications.
• UL 1480A and UL 2043 Listed.
• Per-transducer poly fuses integrated for extra protection from over-current.
• 15-year limited warranty.

Key installation features include mounting points for framing attachment, paper facing for even drying of finishes, and a 0.02" (0.5mm) beveled edge for seamless joints. The DISC system utilizes four steel discs embedded behind the diaphragm for accurate finish thickness measurement. The integrated metal rear enclosure and input terminal cover with knockout and cable strain relief are also notable.

70 Volt Applications

The Sonance Invisible Series IS6T includes a 70V/100V Sonance Laminated Core Transformer with an adjustable tap.

Setting the 70V Tap

1. Using a #2 Phillips head screwdriver ?, remove the two screws securing the terminal cover plate.
2. When using speaker wire without conduit, run the wire through the terminal cover plate hole. Connect wires to the terminal block, ensuring positive wire connects to terminal marked [plus] and negative wire to terminal marked [minus]. If using conduit, attach the conduit connector and then connect wires.
3. Using a flat head screwdriver ?, set the transformer tap to the correct setting for your installation. Testing the system with music is recommended to determine the correct output level.
4. Run speaker wire from the first IS6T speaker to the amplifier terminals, connecting to either the right or left channel ([plus] and [minus]). (Sonance DSP 2-750 MKII shown in illustration).

NOTE: Amplifier bridging is NOT supported when in 70V configuration.

WARNING: Do not mount and finish over the speaker until the necessary tap setting for desired volume is selected. After selecting a tap, play the speaker with an audio signal to verify adequate volume. Re-select a lower or higher tap setting if necessary.

Product Preparation

Amplifier Selection

Sonance DSP Amplifiers are recommended for use with the IS6T speaker. For 70V/100V systems, the Sonance DSP-2-750 MKII is recommended. These amplifiers have preloaded curves to optimize performance and allow for effortless calibration. Sonance DSP Amplifiers are rated down to 4 Ohms and stable to 2 Ohms. Never run more than two Invisible Speakers in parallel on one amplifier channel.

NOTE: Pay attention to the Sonance IS speaker's rated RMS power handling. Select an amplifier with max RMS watts per channel at 4 ohms that closely matches or is less than the speaker's rated power handling (see page 16). Overdriving the speaker can damage it or the installed finish.

Wire Gauge

70V/100V Systems

The common wire for commercial 70-volt systems is 18-gauge, 2-conductor, stranded, jacketed wire. Wire length using 18-gauge is appropriate up to 700 feet with a 100-watt load. Doubling the load halves the footage to 350 feet. Halving the load doubles the acceptable wire length (e.g., a 50-watt load is safe over 1400 feet of 18-gauge). Using 16-gauge wire extends the allowable run length by approximately 35%.

Wire Resistance vs. Cable Length

Low Impedance Systems

For low impedance systems, total wire resistance should be less than 10% of the speaker impedance. For the nominal 4-ohm impedance speakers, total wire resistance should not exceed 0.4 Ohms. Excessive wire resistance negatively affects sound quality, reducing dynamics, bass definition, and high frequencies.

Speaker Location

Invisible Series IS6T speakers offer a 170-degree hemispherical dispersion pattern. For optimal placement, wall-mount speakers at least 7 feet (2.13 meters) above the finished floor or in ceilings. Avoid covering the speaker with cabinetry, draperies, or art. Ensure the Wave Flex Drive Unit faces away from the ceiling (in walls) or away from the walls (in ceilings). Maintain clearance behind the speaker to avoid interference with building systems or local codes.

Installation Accessories

Space savers and preconstruction zip rings are recommended for better trade coordination and to protect speaker wires. Space savers reserve precise dimensions and locations during construction, allowing speaker installation just before the finishing stage. Zip rings aid in creating perfect drywall cutouts, especially for large projects.

Space Saver Part Numbers: IS-SAVER-S (for IS6T) - 93492 (4-pack)

Finish Materials

Verify that topping compound and final finish materials are flexible (e.g., slow-setting drywall mud, wallpaper, acrylic-based Venetian plaster, thin wood veneer) and do not exceed 3mm (1/8") thickness. For optimal performance, a finish thickness of 1.0 to 1.5mm (about 1/16") is recommended. Avoid hard-setting or stiff materials like fast-setting drywall mud, genuine Venetian plaster, stucco, or metal panels, as they restrict movement and degrade sound quality.

Product Management

Precise adherence to installation instructions is crucial for outstanding performance and invisibility. Effective project management and coordination with drywall and finish trades are essential. Conduct pre-finish walk-throughs to identify anomalies. Obtain sign-offs on audio performance. Emphasize correct finish thickness (1.0-1.5mm recommended, max 3mm) and use the Sonance DISC system and DG-1 depth gauge for validation. Post-finish listening checks are vital to catch any issues caused by excessive finish thickness.

Example Checklist: A checklist for audio performance sign-off is provided for project management.

Additional Information: For CAD files and detailed dimensions, scan the QR code or visit www.sonance.com/in-wall-in-ceiling/invisible-series.

Installation Detail - 16" (406mm) On-Center

This section details the on-center mounting for a 16" (406mm) installation. It shows framing support, the speaker placement with shims around the perimeter, screws, and the application of topping compound or other flexible finish material over 5/8" (15mm) or 1/2" (12.5mm) drywall.

Installation Procedures

Retrofit Installation

1. Remove the cutout template from the speaker.
2. Locate studs and mark their centers. Position the template centered on studs and mark around it.

3. NOTE: Keep the cutout template; it's useful for Sonance DISC system measurements.

4. Perform an obstruction survey to check for studs, conduit, pipes, HVAC, etc., in the wall cavity.
5. Cut the drywall using a drywall saw ? along top/bottom and a utility knife ? along stud centerlines. An oscillating power saw is recommended.
6. Remove drywall from the opening, exposing approximately 3/4" (19mm) of each stud/joist. Remove any exposed nails or screws.
7. Test-fit the speaker, ensuring the center diaphragm area is flush with drywall edges. Trim drywall if necessary.
8. Run speaker wire from the amplifier to the cut-out holes.
9. Reinforce top and bottom joint locations with a face-block-oriented 2x4 or 3/4" (19mm) plywood. Ensure a flush, level surface around the speaker location.
10. Proceed to the next step (New Construction Installation).

Diagrams illustrate cutting techniques using a drywall saw and utility knife.

New Construction Installation

1. Run speaker wire from the amplifier to desired locations. Refer to page 5 for wire gauge.
2. Reinforce top and bottom joint locations with 2x4 or 3/4" (19mm) plywood. Ensure a flush, level surface.
3. Place space saver, preconstruction zip ring bracket, or both in the desired location.
4. Use the wire management on the space saver/zip ring to secure cables. Screw the space saver/zip ring to studs using a level ⚖️, ensuring horizontal centering.
5. Complete drywall installation, including the area around the speakers.

6. NOTE: Use included stainless steel screws around speaker locations to avoid interfering with the Sonance DISC system depth gauge operation.

7. Remove the space saver if applicable. Pull the speaker wire through the opening carefully.
8. Optional: If a zip ring was used, cut drywall using a zip tool and the ring as a guide.
9. Install shims as needed. Half-inch (12.5mm) drywall may not require shims. For thicker substrates like 5/8" (15mm) drywall, use the included 1/8" (3mm) shim. Thin 1/16" (1.6mm) shims are also included. Ensure all 4 speaker edges are supported for a flush surface.
10. Connect speaker wire ? to the speaker terminals and set the tap switch.
11. Place the speaker into the opening. For ceiling installations, hold by the frame edge, not the diaphragm center, and get assistance. Secure with at least 4 stainless steel screws ? in each corner.

12. NOTE: Using stainless screws for surrounding drywall is recommended for better DISC system accuracy.

Pre-Finishing Testing Guidelines

Testing before finishing is critical, as issues are difficult to fix afterward.

Installation Fit Test

Use a straight edge across the speaker face to verify the diaphragm is co-planar with the surrounding drywall. Adjust shims if necessary. The beveled edge may be recessed from adjacent drywall.

Audio Test

Connect a high-quality audio source and Sonance amplifier. Adjust output to a moderate volume level. Play music to check fidelity and listen for buzzes or rattles. A slow tone sweep from 20Hz to 5kHz can help pinpoint issues caused by loose components or vibration.

Fix any installation or audio issues before proceeding. Active project management practices are highly recommended.

Finishing Instructions

NOTE: A level four finish (feathered and sanded seams) is recommended, with a level five finish (skim-coated and sanded) for best results.

1. Fill the gap between speaker and drywall with 20-minute fast-setting joint compound ?⚡.
2. Feather all edges.
3. Allow hot mud ?⚡ to set slightly before applying mesh tape ?.
4. Place mesh tape ? over drywall seams, overlapping slightly.
5. Do not tape over the raised portion of the speaker.
6. Allow hot mud ?⚡ to fully cure and harden.
7. Once cured, cover joints with slow-setting compound ??.
8. Feather all surfaces around joints and up to the speaker diaphragm.
9. Allow the first coat to fully cure (12-24 hours).

NOTE: DO NOT use fast-setting drywall compound to cover the speaker itself, as it lacks flexibility. Use lightweight all-purpose joint compound for joints and feathering, and lightweight, easy-sand topping compound for covering the speaker.

Finish Types: A "Finish Up To" installation involves priming and painting directly to the edge of the speaker. A "Finish Over" process applies an additional skim coat over the entire speaker and wall, recommended for better invisibility and potentially less painting effort.

Recommended Drywall Compounds

Finish Thickness Guidelines

Applying finish materials too thick can adversely affect sound quality and installation durability.

TOTAL FINISH THICKNESS FOR OPTIMAL PERFORMANCE: 1.0mm to 1.5mm (3/64" to 1/16")

MAXIMUM TOTAL FINISH THICKNESS: 3mm (1/8")

Validate finish thickness using the Sonance DG-1 depth gauge (SKU 93491). Use only flexible materials for finishing invisible speakers. For flexible sheet materials like wallpaper or veneer, the total thickness of compound, adhesives, and substrate must not exceed 3mm (1/8"). For wood veneer, use only 20mil (0.5mm) veneer with paper backing.

10. Apply a second coat of topping compound ?? covering the entire speaker surface and adjoining areas.
11. Ensure compound buildup on the speaker surface does not exceed 3mm (1/8").
12. Detail the compound to minimize tool marks.
13. Allow each layer to fully cure (12-24 hours).
14. Build more coats as necessary, with each successive coat being thinner. The final coat should be a very light skim coat application.
15. After the final coat dries, use a manual pole or block sander on the entire wall. Be careful not to sand into the speaker surface, as this can damage the paper and hinder blending. The wall surface should appear seamless.
16. Validate the finish thickness using the Sonance DISC system and DG-1 depth gauge (SKU 93491).
17. Perform a final audio test to verify that audio quality and performance have not significantly changed since the pre-finishing test. Address any audible anomalies or surface imperfections now.

After listening validation, the installation is complete. Proceed with normal final finishing methods (paint, wallpaper, veneer).

Technical Specifications

• Frequency Range (-3dB): 50Hz-20kHz
• Power Capacity: 100 Watts (RMS)
• Nominal Sensitivity: 84dB
• Dispersion: 170º Hemispherical up to 10kHz
• Rated Impedance: 4 Ohm
• Transformer: 30W with Sonance Laminated Core Technology
• Transformer Taps (70V): 3.8W, 7.5W, 15W, 30W
• Transformer Taps (100V): 7.5W, 15W, 30W
• 4 Ohm Bypass: Included
• Overall Dimensions (WxHxD): 16.10" x 16.10" x 3.86" (409mm x 409mm x 98mm)
• Mounting Depth: 3.39" (86mm)
• Product Weight: 18.41 lbs. (8.35kg) / Each
• Shipping Weight: 24.25 lbs (11kg) / Each
• Unit of Measure: 40198 Each
• LF Driver: 98in² (633cm²) Air Pulse Diaphragm 6.5" (165mm) Carbon Fiber Woofer
• HF Driver: 20in² (127cm²) Bending Wave Diaphragm 1.75” (44mm) Voice Coil
• Overload Protection: Two Independent Self-Resetting Poly Switches
• Safety Agency: UL-1480A, UL-2043, CSA-C22.2 No.205, NFPA-70, and NFPA-90A

Frequently Asked Questions

Can Invisible Series speakers be installed in the ceiling or just in walls?

Sonance IS speakers can be installed in both walls and ceilings.

Where is the best place to locate the speakers?

For wall installations, place speakers at least 7' (2.13m) from the floor. In ceilings, space them evenly for optimal coverage and avoid corners. Contact Sonance Tech Support / Design Services for speaker layout planning.

What is the minimum depth requirement?

Minimum depth without enclosure: ~2.75" (70mm). Minimum depth with enclosure: ~3.5" (90mm).

Can IS speakers be used in a plenum space?

Only models with a "T" suffix, such as the IS8T, are rated for plenum use (UL2043). Standard models (IS6/IS8/IS10/IS10W) are not plenum rated.

Can these speakers be installed in a T-Bar ceiling?

Theoretically yes. Consult the T-Bar ceiling manufacturer to ensure the maximum load capacity is within safe limits for the number of IS speakers you intend to install.

Can these be used outside?

Sonance invisible speakers are not outdoor rated and should not be used outdoors.

Can these be used in high heat or high humidity applications?

Invisible speakers should not be directly exposed to high heat or humidity. However, finishing materials rated for high heat and humidity exposure can be used if they form a barrier. A mock-up trial of finish materials, speaker, and environment is recommended to validate long-term performance.

What finish materials can I use with invisible speakers? Can these be covered with wallpaper or wood veneer?

Use flexible materials such as: slow-setting, lightweight drywall compounds, wallpaper, wood veneer, vinyl veneer, and acrylic-based Venetian plaster. Refer to page 14 for more details.

Are there materials that should not be used to cover the speakers?

Avoid stiff, inflexible materials or those exceeding 3mm (1/8") total thickness over the speaker diaphragm, such as tile, metal sheet, stone veneer, true Venetian plaster, or stucco. These materials restrict movement and can result in poor bass response and muffled sound.

How much finish material can go over the speaker?

We recommend 1.0mm to 1.5mm for optimal performance. The maximum limit is 3mm (1/8").

How can I tell how much finish material is covering the speaker?

Use the Sonance DG-1 depth gauge (SKU 93491) to measure the actual finish thickness covering Sonance invisible speakers.

What is the DISC system?

The Sonance DISC System accurately quantifies finish thickness non-destructively. The DG-1 handheld depth gauge uses a magnetic sensor to measure the distance between the finished speaker surface and steel discs embedded behind the speaker diaphragm.

What if I add too much finish material?

Before final finishing (e.g., painting), sand the surface and measure thickness with the DG-1 gauge. Repeat as needed until thickness is 3mm or less. 1.0mm to 1.5mm is recommended for optimal performance.

Is there a benefit to "Finish Up To" rather than "Finish Over"?

No practical benefit. "Finish Over" is recommended as it typically takes less time, results in a more seamless finish, and IS speakers are optimized for 1.0mm to 1.5mm finish thickness.

What happens if the mud or finish cracks?

Cracks may indicate improper finish application or speakers being regularly overdriven. While integrated poly fuses offer protection, they cannot prevent all abuse. If cracks occur, Sonance can help troubleshoot, often related to excessive finish thickness. The DISC system helps prevent these issues.

Can I use other than Sonance DSP amplifiers?

Yes, but Sonance DSP amps are highly recommended due to built-in DSP presets. Ensure the amplifier's RMS power handling closely matches or is less than the speaker's rated power handling to avoid damage. For Sonance IS woofers and subwoofers, always use a Sonance DSP amplifier.

I lost the screws. What is the spec or do I have to buy them from Sonance?

Use stainless steel #6 drywall screws of appropriate length for the drywall/substrate thickness and local codes.

I lost the shims. How can I get more? Do I have to buy them from Sonance?

Use standard drywall shims available from your local hardware store.

Is there a protection circuit built into the speaker or do they need to be added?

All full-range speakers (IS6T/IS8T) have dual, self-resetting poly fuses per transducer. Woofers have a single poly fuse. These fuses trip if a speaker is overdriven, protecting the driver and installation surface. Fuses reset after a few minutes. If fuses trip frequently, reduce volume or add more speakers.

What is the warranty on IS invisible speakers, and what does the warranty cover?

The 15-year limited warranty covers the cost to replace the speaker(s) and refinishing up to a level 5 drywall finish.

Certifications

Sonance Invisible Series IS6T speaker models meet the following standards:

• UL-1480A: Speakers for Fire Protective Signaling Systems.
• UL-2043: Fire Test for Heat and Visible Smoke Release for Discrete Products and their Accessories Installed in Air Handling Spaces.
• CSA-C22.2 No.205: Signaling Equipment for General Signaling and Fire Alarm Signaling, Canada.
• Installation must be in accordance with NFPA-70 (National Electric Code) and NFPA-90A (Installation of Air Conditioning and Ventilation), and CSA C22.1 (Canadian Electrical Code).

Compliance marks: UL Listed, CE, RoHS, WEEE.

Technical Assistance & Service

The Technical Assistance Department is available at (949) 492-7777, Monday-Friday, 7:00 AM - 5:00 PM Pacific time. For repair or service, keep original packaging. Be prepared to provide model/serial number, purchase date, and dealer information when calling. Contact Sonance at (949) 492-7777 or www.sonance.com for a Return Authorization Number (RMA) before shipping. Ship via UPS, FedEx, or similar carrier (not USPS). Include the RMA number on the shipping label. Ship to: Attn: Quality Assurance Department, RMA# [RMA number], Sonance, 11016 Mulberry Ave. Suite B, Fontana, CA 92337.

Limited Fifteen (15) Year Warranty

Sonance warrants the product to the first end-user purchaser against defective workmanship and materials for fifteen (15) years from the date of purchase. Sonance will, at its option, repair or replace the defective product. This warranty is in lieu of all other warranties, express or implied. Exclusions apply, including damage from misuse, improper installation, or unauthorized service. To qualify for warranty service, contact your authorized Sonance Dealer/Installer or Sonance Customer Service at (949) 492-7777 within the warranty period to obtain an RMA and ship the product prepaid with proof of purchase.

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