Martin Audio Adorn A55B – 5.25" On-Wall Loudspeaker, Black Pair

Product Overview

The Martin Audio Adorn A55B is a two-way passive on-wall loudspeaker designed for commercial background music, foreground audio, and distributed sound systems. Sold as a pair in black finish, it delivers 113dB peak SPL from a compact enclosure with a 110° x 80° horn-loaded coverage pattern. The A55B is well suited to retail environments, corporate offices, hospitality venues, and any commercial installation requiring an unobtrusive wall-mounted loudspeaker with high output capability.

Product Description

The Martin Audio Adorn A55 is a flagship model in the Adorn on-wall loudspeaker series, combining Martin Audio’s commercial audio heritage with an architecturally sympathetic enclosure design. The black finish integrates naturally into dark interior schemes and coordinates with the ACP-55T-B pendant ceiling speaker for consistent multi-zone system aesthetics.

Driver complement includes a 5.25" (135mm) LF driver and a 0.75" (19mm) silk-dome HF driver mounted on a 110° x 80° horn, producing 113dB peak SPL at 1 metre with bass extension to 65Hz. Nominal impedance of 16 ohms allows multiple speakers to be driven in parallel from a single amplifier channel, maximising amplifier efficiency in multi-speaker zones.

The enclosure can be wall-mounted vertically or horizontally using the included wall bracket, providing flexibility for both portrait and landscape orientations depending on architectural constraints. For outdoor or semi-outdoor use, the enclosure requires only the addition of the optional waterproof connector cover. The A55B pairs naturally with the Martin Audio VIA2004 amplifier and DX0.5 or DX4.0 system controller for managed distributed audio installations. Explore the full Adorn range at Creation Networks – Martin Audio.

Key Features

• 113dB Peak SPL — High output from a compact on-wall enclosure for commercial foreground and background audio.
• Two-Way Horn-Loaded Design — 5.25" LF driver with 0.75" silk-dome HF on a 110° x 80° horn for controlled directional coverage.
• 65Hz Low-Frequency Extension — Strong bass performance suitable for music reproduction without supplemental subwoofer in many BGM applications.
• 16-Ohm Nominal Impedance — Parallel multi-speaker wiring per amplifier channel for efficient distributed audio design.
• Vertical or Horizontal Mounting — Included wall bracket supports both portrait and landscape installation orientations.
• Independent LF/HF Overload Protection — Auto-resetting fuses on both driver sections for continuous system availability.
• Field-Paintable Enclosure — Standard finish can be painted to match any interior colour scheme.
• Outdoor-Ready with Optional Cover — Waterproof connector cover (sold separately) enables general outdoor deployment.
• Wall Bracket Included — Mounting hardware supplied in the box.
• 5-Year Warranty — Martin Audio manufacturer warranty.

Typical Applications

• Retail outlet background and foreground music systems
• Corporate office and boardroom distributed audio
• Hotel, casino, and convention centre background music
• House of worship on-wall reinforcement zones
• Restaurant and bar commercial audio installations
• Multi-purpose room and training room audio distribution

Technical Specifications

Frequently Asked Questions

Does the A55B include a wall bracket?

Yes. A wall bracket enabling both vertical and horizontal mounting orientations is included with each pair.

Can the A55B be used outdoors?

The enclosure is suitable for general outdoor use with the addition of the optional waterproof connector cover (sold separately). It is not a fully weatherised speaker — consider the Martin Audio CDD-WR series for permanent outdoor installations.

What amplifier is recommended for the A55B?

Martin Audio recommends the VIA2004 four-channel Class D amplifier for low-impedance operation of the A55B. For managed installations, the DX0.5 or DX4.0 system controller can be added for zone management and DSP processing.

Can the A55B be extended with a subwoofer?

Yes. The Martin Audio SX110 ultra-compact subwoofer is recommended to extend low-frequency bandwidth for foreground music applications requiring greater bass impact.

How many A55B speakers can run from one amplifier channel?

With a nominal impedance of 16 ohms, multiple speakers can be connected in parallel per amplifier channel. Minimum load impedance depends on the amplifier specification — consult the VIA2004 data sheet for exact channel configuration guidance.

What is the warranty period?

The A55B carries a 5-year manufacturer warranty from Martin Audio.