Martin Audio Adorn A55TW – 5.25" On-Wall Speaker with 70/100V Transformer, White Pair

Product Overview

The Martin Audio Adorn A55TW is a two-way passive on-wall loudspeaker with an integrated 70V/100V line transformer, engineered for distributed audio and background music systems in commercial installations. Sold as a pair in white finish, it delivers 113dB peak SPL and connects directly to constant-voltage distributed audio lines. The A55TW suits retail, hospitality, corporate, and convention centre environments requiring high-output 70V/100V system compatibility from a compact, architecturally sympathetic wall-mounted loudspeaker in a white finish.

Product Description

The Adorn A55TW is the white-finish variant of the A55T series with integrated 70V/100V transformer. It is acoustically and electrically identical to the A55TB, differentiated only by finish colour. The white enclosure coordinates with the ACS-55T-W ceiling speaker and ACP-55T-W pendant ceiling speaker for a consistent system aesthetic across full commercial AV installations in light-coloured commercial interiors.

Driver complement includes a 5.25" (135mm) LF driver and a 0.75" (19mm) silk-dome HF driver on a 110° x 80° horn, producing 113dB peak SPL and 90dB/1W/1m sensitivity — the highest sensitivity in the Adorn on-wall range. The front-ported bass reflex enclosure extends bass response to 65Hz, supporting foreground music applications. The 3.5kHz passive crossover includes auto-resetting thermal fuses on both driver sections for full-bandwidth protection. Push-terminal connectors simplify field termination. Explore the complete Martin Audio range at Creation Networks – Martin Audio.

Key Features

• Integrated 70V/100V Line Transformer — Direct constant-voltage system connection without external transformer hardware.
• 113dB Peak SPL — Highest output in the Adorn on-wall range for high-ambient-noise commercial environments.
• 90dB/1W/1m Sensitivity — Most efficient model in the Adorn on-wall series for large-zone distributed audio.
• Two-Way Horn-Loaded Design — 5.25" LF driver with 0.75" silk-dome HF on a 110° x 80° horn.
• 65Hz Low-Frequency Extension — Suitable for foreground music applications without supplemental subwoofer.
• Multi-Tap Power Selection — Flexible per-speaker level adjustment via transformer taps for zone balancing.
• 3.5kHz Passive Crossover with Auto-Resetting Fuses — Independent LF and HF overload protection.
• Push-Terminal Connectors — Simplified field wiring for distributed audio installations.
• Vertical or Horizontal Mounting — Included wall bracket supports both installation orientations.
• UL94V-0 Rated ABS Enclosure — Commercial fire compliance.
• 5-Year Warranty — Martin Audio manufacturer warranty.

Typical Applications

• Retail outlet 70V/100V background and foreground music systems
• Hotel lobby, corridor, and public area constant-voltage audio
• Corporate office and all-hands room multi-zone distributed audio
• House of worship background music and speech reinforcement
• Convention centre and commercial meeting space BGM systems
• Restaurant, bar, and hospitality foreground music installations

Technical Specifications

Frequently Asked Questions

What is the difference between the A55TW and the A55TB?

The A55TW and A55TB are acoustically and electrically identical. The A55TW has a white finish; the A55TB is black. Both have integrated 70V/100V line transformers and the same driver, sensitivity, and SPL specifications.

What is the difference between the A55TW and the A55W?

The A55TW has a built-in 70V/100V line transformer for constant-voltage distributed audio. The A55W operates at 16 ohms for low-impedance amplifier connection. Both share the same driver complement and coverage pattern.

What amplifier is recommended for the A55TW?

Martin Audio recommends the VIA2004 four-channel Class D amplifier for the A55TW.

Why is the A55TW sensitivity higher than the A40TW?

The larger 5.25" driver and horn in the A55TW produces 90dB/1W/1m sensitivity versus 87dB for the A40TW. This makes the A55TW more efficient in large distributed audio zones requiring higher SPL from a given amplifier power level.

Can the A55TW be used in a system alongside Martin Audio CDD loudspeakers?

Yes. The A55TW shares Martin Audio’s consistent sound signature, enabling quality-matched multi-zone installations alongside CDD and BlacklineX series systems.

What warranty does the A55TW carry?

Martin Audio provides a 5-year manufacturer warranty on the A55TW.