Martin Audio Adorn A40B – 4" On-Wall Loudspeaker, Black Pair

Product Overview

The Martin Audio Adorn A40B is a compact two-way passive on-wall loudspeaker designed for commercial background music and distributed audio systems. Sold as a pair in black finish, it delivers 109dB peak SPL from an ultra-compact enclosure with a 110° x 80° horn-loaded coverage pattern. The A40B suits retail, hospitality, corporate, and educational environments where an unobtrusive, high-performance wall-mounted loudspeaker is required at an accessible price point.

Product Description

The Martin Audio Adorn A40 is the 4" sibling to the A55 series, sharing the same horn geometry and architectural enclosure design in a smaller format. The ultra-compact black enclosure installs discreetly in both portrait and landscape orientations using the included wall bracket. The A40B is particularly well suited to spaces where the ceiling-to-listener distance is low or where a small physical footprint is essential to design intent, such as corridors, retail perimeters, and smaller commercial rooms.

Driver complement includes a 4" (100mm) LF driver and a 0.75" (19mm) silk-dome HF driver on a 110° x 80° horn, producing 109dB peak SPL at 1 metre with bass extension to 70Hz and 40W AES power handling. With 16-ohm nominal impedance, multiple A40B speakers can be run in parallel from a single low-impedance amplifier channel. Both driver sections carry independent auto-resetting overload fuses. For outdoor use, an optional waterproof connector cover is all that is required. View other Martin Audio Adorn products at Creation Networks – Martin Audio.

Key Features

• Ultra-Compact Form Factor — Small enclosure footprint suits low-profile commercial installations and constrained wall space.
• 109dB Peak SPL — High output for background and foreground music in commercial environments.
• Two-Way Horn-Loaded Design — 4" LF driver with 0.75" silk-dome HF on a 110° x 80° horn for controlled coverage.
• 70Hz Low-Frequency Extension — Adequate bass reproduction for commercial background music systems.
• 16-Ohm Nominal Impedance — Supports parallel multi-speaker wiring from a single amplifier channel.
• Vertical or Horizontal Mounting — Included wall bracket supports both installation orientations.
• Independent LF/HF Overload Protection — Auto-resetting fuses on both driver sections.
• Field-Paintable Enclosure — Black finish accepts paint to match any interior colour scheme.
• Outdoor-Ready with Optional Cover — Waterproof connector cover (sold separately) enables outdoor deployment.
• 5-Year Warranty — Martin Audio manufacturer warranty.

Technical Specifications