ICM612 - Speaker Atlas Sound - Free user manual and instructions

Product Type	In-Ceiling Speaker
Brand	Atlas Sound
Model	ICM612
Driver Configuration	6.5" Woofer, 1" Tweeter
Impedance	8 Ohms (nominal)
Power Handling (RMS)	60 Watts
Sensitivity	90 dB (1W/1m)
Frequency Response	50 Hz - 20 kHz
Cutout Diameter	7.6 inches (193 mm)
Depth Required	4.5 inches (114 mm)
Net Weight	5 lbs (2.3 kg)
Color	White (paintable)
Material	ABS baffle, steel backcan
Mounting Type	Spring-loaded clamps
Transformer (Optional)	70V/100V, 1/4 watt taps
Applications	Background music, paging, commercial audio
Included Accessories	Grille, mounting hardware, cutout template
Safety Rating	UL 2043 plenum rated
Warranty	5 years limited
Cleaning Instructions	Wipe with a dry or slightly damp cloth; avoid solvents
Repair Information	Replaceable driver assembly; contact Atlas Sound for parts
Installation Note	Ensure proper support and avoid contact with insulation

Frequently Asked Questions - ICM612 Atlas Sound

What amplifier power is recommended for the ICM612?

An amplifier delivering 30 to 120 watts RMS per channel into 8 ohms is suitable.

Can the ICM612 be used outdoors?

It is designed for indoor use only. Outdoor installation requires a weatherproof enclosure.

How do I connect the speaker to a 70V system?

Remove the jumper for 8 ohm operation and select the desired tap (e.g., 1/4W, 1/2W, 1W, 2W, 4W) on the transformer.

What is the cutout size for installation?

The required cutout diameter is 7.6 inches (193 mm). Use the included template.

Does the speaker come with a backbox?

The ICM612 includes a steel backcan. An optional tile support is available for drop ceilings.

Can I paint the grille?

Yes, the grille is paintable. Remove it first and apply spray paint suitable for plastic.

What is the impedance of the speaker?

In 8 ohm mode, the nominal impedance is 8 ohms. With transformer, it depends on tap selection.

Can I use this speaker for surround sound in a home theater?

Yes, it works well as a surround or ceiling channel speaker with a compatible receiver.

How do I wire for 8 ohm vs 70V operation?

For 8 ohm, connect directly to the + and - terminals. For 70V, move the jumper to the transformer and connect to the COM and desired tap.

How to clean the grille?

Remove the grille and wash with mild soap and water. Dry thoroughly before reattaching.

USER MANUAL ICM612 Atlas Sound

Exterior view of a modern black and white audio speaker system with two speakers and a flat panel (no text or symbols visible)

OWNER'S MANUAL

MUSICA SERIES

DISTRIBUTED AUDIO CUSTOM SPEAKERS

Thank you for choosing MTX MUSICA Series speakers for your home audio system. Properly installed and operated, these speakers will provide years of worry-free listening pleasure.

KEY FEATURES

• Polypropylene Woofer with Rubber Surround
• PEI Balanced Dome Tweeter
• 6dB Octave Tweeter Crossover
- Easy to Install Collared Dog Leg Mounting
• Steel Paintable Grilles
- Press Fit Grille Reduces Exposed Bezel to 0.1"

SPEAKER INSTALLATION

MTX MUSICA Series speakers can be installed in either in-ceiling or in-wall applications allowing them to blend within any interior decorating scheme. Speaker placement is critical to maximizing the performance of the speakers within the system. Achieve the best stereo reproduction by installing two loudspeakers an equal distance from the listener's position and separated so that the speakers and the listener form an equilateral triangle, with all sides of the triangle being the same length. In multi-channel applications the same principle applies for both the front and rear speakers with the addition of a center channel speaker directly in front of the listener's position.

graph TD
    A["Speaker 1"] --> B["Listener"]
    C["Speaker 2"] --> B["Listener"]
    B --> A
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333
    linkStyle 0 stroke:#000,stroke-width:2px
    linkStyle 1 stroke:#000,stroke-width:2px
    linkStyle 2 stroke:#000,stroke-width:2px
    linkStyle 3 stroke:#000,stroke-width:2px

CUTTING THE SPEAKER HOLE

Before cutting any speaker holes, it is important to check for electrical wiring, plumbing, conduit, studs, or other obstacles that may exist in the intended installation spot. Remember that the grille and flange are larger than the speaker cut-out. Ensure there is room on all sides of the desired location to accommodate the entire speaker.

1. Use the included cut-out template to mark the cut-out pattern on the wall or ceiling once it has been determined to be a safe location with no obstructions.
2. Use a sabre saw, keyhole saw, or sharp utility knife to cut the hole following the traced pattern. Use caution when cutting the hole to prevent unnecessary damage to the surrounding surface.
3. Clear the hole of any debris or other material that will prevent speaker installation.

INSTALLING THE SPEAKER

1. Connect the speaker wires previously run to the install location ensuring that the ends are stripped and the inner copper wire is exposed. Press down on the compression terminals and insert the speaker wire into each terminal ensuring that polarity is maintained with the positive wire connected to the + terminal and the negative wire connected to the - terminal.
2. The speaker includes four front panel Phillips screws that operate the dog legs that will attach the speaker to the ceiling or wall material.
3. Using a screwdriver or power drill on low setting turn each screw clockwise until the dog leg firmly secures itself to the ceiling or wall material. Use caution to not overtighten the dog legs causing them to crack or break.
4. Attach the included press-fit grille, make the speaker wire connections at the source, and turn on a signal to test the speaker(s).

PAINTING THE GRILLES

MTX MUSICA Series speakers include press fit grilles that can be painted to match ceiling or wall colors allowing them to blend into the room. Spray application will provide excellent results. The cloth inserts in the grilles should be removed before the grilles are painted and they should be placed back in the grilles once the paint is dry.

1. Remove the grille from the speaker baffle.
2. Fold up all grille flaps carefully.
3. Push the grille out from the plastic trim.
4. Remove the scrim cloth, making sure not to damage it. It will be needed when re-assembling the grille.
5. Paint the grille and trim ring. Make sure not to fill in the grille holes as this will affect sound quality.

Close-up of a circular mechanical component with textured surface and a small square hole (no visible text or symbols)

RE-ASSEMBLING THE GRILLES

The grill can now be re assembled into the speaker baffle.

1. Place the scrim cloth on the inner side of the grille.
2. Take the plastic trim and align the notches with the grille flaps.
3. Push the grille into the trim until it sits flush.
4. Fold over the grille flaps tightly so the grille is locked in place.

Close-up of a curved metallic object with a small grid-like feature on its side (no text or symbols visible)

SPECIFICATIONS

ICM612

Speaker Type: 2-Way In-Ceiling

Tweeter: 14mm Balanced Dome

Woofer: 6.5" Polypropylene

Impedance: 8Ω

Sensitivity: 88dB (2.83V/1M)

Frequency Response: 43Hz - 25kHz (-10dB)

RMS Power: 50-Watts

Dimensions: Diameter 8.98" x 3.60"

(Diameter 228mm x 91.5mm)

Mounting Depth: 3.27" (83mm)

Cut Out: Diameter 7.87" (200mm)

ICM812

Speaker Type: 2-Way In-Ceiling

Tweeter: 14mm Balanced Dome

Woofer: 8" Polypropylene

Impedance: 8Ω

Sensitivity: 90dB (2.83V/1M)

Frequency Response: 43Hz - 24kHz (-10dB)

RMS Power: 65-Watts

Dimensions: Diameter 10.51" x 3.98"

(Diameter 267mm x 101mm)

Mounting Depth: 3.64" (92.5mm)

Cut Out: Diameter 9.41" (239mm)

IWM620

Speaker Type: 2-Way In-Wall

Tweeter: 14mm Balanced Dome

Woofer: 6.5" Polypropylene

Impedance: 8Ω

Sensitivity: 88dB (2.83V/1M)

Frequency Response: 40Hz - 25kHz (-10dB)

RMS Power: 50-Watts

Dimensions: 8.52" x 11.91" x 3.33"

(216.5mm × 302.5mm × 84.5mm)

Mounting Depth: 2.99" (76mm)

Cut Out: 7.40" x 10.79" (188mm x 274mm)

IWM820

Speaker Type: 2-Way In-Wall

Tweeter: 14mm Balanced Dome

Woofer: 8" Polypropylene

Impedance: 8Ω

Sensitivity: 90dB (2.83V/1M)

Frequency Response: 40Hz - 24kHz (-10dB)

RMS Power: 65-Watts

Dimensions: 9.90" x 13.92 x 3.72"

(251.5mm × 353.5mm × 94.5mm)

Mounting Depth: 3.39" (86mm)

Cut Out: 8.78" x 12.80" (223mm x 325mm)

LCRM62

Speaker Type: Dual 6.5" LCR

Tweeter: 14mm Balanced Dome

Woofer: Dual 6.5" Polypropylene

Impedance: 8Ω

Sensitivity: 88dB (2.83V/1M)

Frequency Response: 39Hz - 25kHz (-10dB)

RMS Power: 65-Watts

Dimensions: 15.41" x 9.67" x 3.39"

(391.5mm x 245.5mm x 86mm)

Mounting Depth: 2.97" (75.5mm)

Cut Out: 14.25" x 8.54" (362mm x 217mm)

NOTES:

NOTES:

© 2015 Mitek Corporation. All rights reserved. MTX is a trademark of Mitek Corporation. Designed and Engineered in the U.S.A.

Due to continual product development, all specifications are subject to change without notice.

MTX Audio, 4545 East Baseline Rd. Phoenix, AZ 85042 U.S.A. 1-800-225-5689

MTX005338 RevA 10/15 • 21A10474 • AW0015220