Martin Audio Adorn ACS-55TS-W – 5.25" Shallow Backcan Ceiling Speaker, White Pair

Product Overview

The Martin Audio Adorn ACS-55TS-W is a two-way passive ceiling speaker with a shallow backcan profile, engineered for commercial background music and distributed audio installations where ceiling cavity depth is limited. Sold as a pair in white, it delivers 113dB peak SPL and a broad 150° conical coverage pattern, making it suitable for retail, hospitality, and corporate environments. The 70V/100V line transformer and 16-ohm low-impedance modes provide compatibility with the full range of commercial audio distribution systems.

Product Description

The ACS-55TS-W addresses one of the most common constraints in commercial ceiling speaker installations: insufficient ceiling cavity depth for standard backcans. The shallow backcan profile allows deployment in plenum spaces and dropped ceilings where a standard-depth backcan would not fit, without sacrificing the driver performance of the Adorn 5.25" two-way platform.

The speaker pairs a 5.25" (135mm) LF driver with a 0.75" (19mm) silk-dome tweeter, achieving 113dB peak SPL at 1 metre and bass extension down to 62Hz. The 150° conical coverage pattern reduces total speaker count needed for uniform SPL in open commercial spaces, supporting cost-effective large-zone audio design. The white (RAL9016) bezel-less grille aligns with the Adorn on-wall range for coordinated system aesthetics. Tile rails and a C-ring are included for drop-ceiling installation. Find the complete Adorn series at Creation Networks – Martin Audio.

Key Features

• Shallow Backcan Design — Enables installation in ceilings with limited plenum cavity depth.
• 113dB Peak SPL — High output from a compact 5.25" ceiling format for commercial ambient-noise environments.
• Two-Way Driver Array — 5.25" LF and 0.75" silk-dome HF for full-range music and speech reproduction.
• 62Hz Low-Frequency Extension — Ported bass reflex performance despite the shallow enclosure profile.
• 150° Conical Coverage — Reduces speaker density for cost-effective even SPL across large zones.
• 70V/100V Multi-Tap Transformer — Grille-accessible rotary switch for distributed audio system compatibility.
• 16-Ohm Low-Impedance Mode — Supports parallel multi-speaker wiring per amplifier channel.
• Auto-Resetting Thermal Fuses — Independent LF and HF overload protection for long-term reliability.
• UL94V-0 Rated Baffle with Zinc-Plated Steel Backcan — Commercial fire and build quality compliance.
• Tile Rails and C-Ring Included — Drop-ceiling installation hardware included in the box.
• 5-Year Warranty — Martin Audio manufacturer warranty.

Typical Applications

• Retail outlets with shallow plenum ceiling cavities
• Hotel corridors and reception areas with limited ceiling depth
• House of worship background music installations
• Commercial meeting space and boardroom distributed audio
• Hospitality and food service background music systems

Technical Specifications

Frequently Asked Questions

What is the key difference between the ACS-55TS-W and the ACS-55T-W?

The ACS-55TS-W uses a shallow backcan for installations with minimum ceiling cavity depth. The ACS-55T-W has a deeper backcan with greater internal volume, which provides marginally better low-frequency output. Both share the same driver complement and coverage pattern.

Is installation hardware included?

Yes. Tile rails and a C-ring for drop-ceiling installation are included with each pair.

Does the ACS-55TS-W support 70V line systems?

Yes. The built-in multi-tap transformer supports both 70V and 100V line operation with rotary tap selection accessible from the front of the grille.

Can this speaker be used in foreground music applications?

Yes. The 113dB peak SPL and 62Hz low-frequency extension make this model suitable for foreground music as well as background audio in retail and hospitality environments.

What is the coverage angle?

The ACS-55TS-W produces 150° conical coverage (-6dB), allowing wider fixture spacing than narrower designs while maintaining even SPL.

What warranty does this product carry?

Martin Audio provides a 5-year manufacturer warranty on the ACS-55TS-W.