Outline AC 4 Ultra-Compact 4" Passive Speaker (White)

The Outline AC 4 is proof that serious audio performance can come in an ultra-compact package. This discreet white passive speaker brings professional-grade clarity and output to venues where larger boxes simply won’t fit, making it a favourite for subtle yet impactful sound in museums, restaurants, lounges, conference rooms and high-end installations across Australia.

At its core sits a purpose-designed 4-inch full-range driver, engineered in Italy exclusively for the AC 4. The single-driver layout eliminates crossover points, delivering naturally coherent, uncoloured sound with impressive intelligibility. Its 60-degree axisymmetric coverage ensures consistent listening quality across the audience area, while the compact cabinet produces a surprising maximum SPL of 118 dB.

With 70 W AES power handling (280 W peak) and a 16-ohm impedance optimised for distributed systems, the AC 4 partners perfectly with the Outline L3000 amplifier or any professional amplifier in your rack. This makes scaling multiple units straightforward without sacrificing headroom or clarity.

Built from durable HCDF material and finished in elegant white textured polyurethane, the speaker is protected by an epoxy-coated grille and features signature O-rings that damp vibration and allow stable mounting on any surface. Multiple fixing points (2x M6, 3x M4 plus M10 on the included bracket) give installers complete flexibility, while its tiny 120 x 120 x 126 mm footprint and 1.55 kg weight make placement almost invisible.

Whether you need background music that disappears into the architecture or foreground audio that commands attention without dominating the room, the Outline AC 4 delivers Italian precision in a package that works as hard as it is easy to hide.