Atlas Sound M1000A35 – 8" Powered Sound Masking Speaker System

Product Overview

The Atlas Sound M1000A35 is a self-contained active sound masking system using an 8" full-range speaker powered by an internal 5-watt Class D amplifier, designed for small-to-medium commercial installations where speech privacy and acoustic comfort are priorities. As a plenum-rated sound masking speaker with 30W secondary amplifier output, the M1000A35 can drive additional passive masking speakers — such as the AtlasIED M1000 and M2000 series — to extend coverage up to and beyond 12,000 sq. ft. depending on tap settings and installation conditions. The unit is UL2043 plenum rated, making it compliant for installation in air-handling spaces above drop ceilings without additional enclosures.

Product Description

The M1000A35 generates a contoured pink noise masking signal using a non-repeatable algorithm that mimics the spectral characteristics of HVAC background noise — the most effective frequency profile for masking human speech. A variable hi-cut filter allows the masking spectrum to be shaped to match the specific acoustic environment, enabling proper commissioning to the ANSI/ASA S3.41 speech privacy standard. Standalone coverage is approximately 225 sq. ft. per unit. When the 30W secondary amplifier output is used to drive additional M1000 or M1000R passive speakers, total system coverage can exceed 12,000 sq. ft., making the M1000A35 scalable for open-plan offices, healthcare waiting areas, and legal or financial environments where confidentiality is required. The internal speaker operates via a 5W Class D amplifier, and both the internal speaker and external amplifier output have independent level controls for precise zone-level calibration. The 70.7V output taps (0.25, 0.5, 1, 2, and 4W) on the secondary output allow systematic load calculation for expanded systems. A VCA remote level control port accepts a 10k external potentiometer for remote volume adjustment. The optional ATMASKSC commissioning controller provides 1dB precision increments and prevents accidental system shutdown during tuning. An included external in-line 24VDC power supply (UL rated, 100–240V input) powers the unit, and two removable hanger brackets enable single-point suspension mounting above a drop ceiling. At 11.25 lbs in a 5.67" x 11.61" x 11.61" enclosure, the M1000A35 is compact enough for typical ceiling plenum installation without structural modifications.

Key Features

• UL2043 Plenum Rated — Approved for installation in air-handling ceiling plenums without requiring an additional fire-rated enclosure.
• 5W Internal Class D Amplifier — Powers the internal 8" speaker directly; energy-efficient topology reduces operating costs in always-on masking applications.
• 30W Secondary Amplifier Output — Drives additional passive masking speakers (M1000, M1000R, M2000 series) to extend coverage in larger deployments.
• Non-Repeatable Contoured Pink Noise Generator — Produces a masking signal that does not loop or repeat, preventing listener habituation over time.
• Variable Hi-Cut Filter — Allows the masking spectrum to be shaped to match the acoustic characteristics of the installation environment.
• Dual Independent Level Controls — Separate controls for internal speaker and external amplifier output enable independent zone level calibration.
• VCA Remote Level Control Port — Accepts an external 10k potentiometer for remote volume adjustment; supports connection to building automation systems.
• 70.7V Secondary Output Taps — Tap settings of 0.25, 0.5, 1, 2, and 4W allow systematic load calculation when driving multiple passive speakers.
• Included 24VDC In-Line Power Supply — External UL-rated power supply with universal 100–240VAC input eliminates the need for a separate power transformer.
• Two Removable Hanger Brackets — Enables single-point suspension mounting in ceiling plenum spaces.

Typical Applications

• Conference room
• Boardroom
• Commercial meeting space
• Government space
• Multi-purpose room
• Training room

Technical Specifications

Frequently Asked Questions

Q: How many passive speakers can the M1000A35 drive?

A: The 30W secondary amplifier output can drive additional M1000, M1000R, or M2000 series passive masking speakers. The total number of speakers depends on the tap setting selected and the maximum load of 166 ohms on the secondary output. AtlasIED recommends consulting their system design resources for specific coverage calculations.

Q: What is the total coverage area achievable with the M1000A35?

A: Standalone coverage is approximately 225 sq. ft. When paired with M1000 passive speakers on the 30W secondary output, total system coverage can exceed 12,000 sq. ft. depending on installation conditions and tap settings.

Q: What does UL2043 plenum rating mean?

A: UL2043 is a fire safety certification that qualifies the product for installation in air-handling ceiling plenums. It certifies that the materials used in the enclosure and components do not produce excessive smoke or toxic gases under fire conditions, allowing installation above drop ceilings without an additional fire-rated enclosure.

Q: Can the masking level be controlled remotely?

A: Yes. The VCA remote level port accepts an external 10k potentiometer for remote volume adjustment. The optional ATMASKSC commissioning controller provides 1dB precision increments and prevents the system from being accidentally turned off during normal operations.

Q: Is the M1000A35 appropriate for open office environments?

A: Yes. The M1000A35 is specifically designed for open-plan and private office sound masking applications where speech privacy and acoustic comfort are required. Its contoured pink noise generator is optimized to match the spectral characteristics most effective for speech privacy in commercial office environments.