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Outline AC 4 Ultra-Compact 4" Passive Speaker (Black)
SKU
O1AC4
The Outline AC 4 is an ultra-compact 4-inch passive speaker that delivers a powerful 118 dB SPL from a palm-sized enclosure. Custom Italian-engineered drivers and a single-driver design ensure natural, phase-coherent sound with excellent off-axis performance. Built with HCDF construction and supplied with a versatile mounting bracket, it is the ideal discreet solution for high-quality audio in museums, restaurants, lounges, conference rooms and permanent installations.
The Outline AC 4 brings studio-grade clarity and surprising power to spaces where you need audio without the visual intrusion. This ultra-compact passive speaker measures only 120 x 120 x 126 mm and weighs a mere 1.55 kg, yet it delivers a commanding 118 dB SPL maximum output with natural, uncoloured sound that suits everything from corporate boardrooms to high-end hospitality venues.
At its core is a purpose-designed 4-inch full-range driver engineered in Italy exclusively for the AC 4. The single-driver configuration eliminates crossover points, delivering seamless phase coherence and consistent coverage across its axisymmetric 60-degree dispersion pattern. Whether installed in a museum display, restaurant ceiling, lounge wall or conference room, the speaker maintains even intelligibility throughout the listening area.
Built from durable HCDF material with distinctive O-rings that damp vibration and protect against uneven surfaces, the AC 4 is as robust as it is discreet. Its 16-ohm impedance is optimised for distributed systems, allowing multiple units to be driven efficiently from a single amplifier channel. It pairs perfectly with Outline’s L3000 amplifier for plug-and-play reliability, while the 70 W AES (280 W peak) power handling ensures it can handle demanding program material without compromise.
Installation flexibility is built in. Every AC 4 ships with a custom multi-adaptable mounting bracket, and the cabinet offers multiple fixing points (2x M6, 3x M4 plus 1x M10 on the bracket) so it can be mounted on walls, ceilings, trusses or custom brackets with ease. Available in black or white textured polyurethane with an epoxy-coated grille, it blends into any environment; custom RAL colours can be ordered where a perfect match is required.
From subtle background music in a boutique hotel to clear speech reinforcement in a gallery, the Outline AC 4 proves that great sound doesn’t need to dominate the room. Italian craftsmanship, professional performance and unobtrusive design combine to make it the first choice for integrators and venue owners who refuse to compromise on audio quality or aesthetics.
- Ultra-compact passive speaker system with 4-inch full-range driver
- Custom Italian-engineered transducer designed exclusively for the AC 4
- Single-driver design for natural, phase-coherent sound reproduction
- HCDF (Hydrophobic Compact Density Fiber) cabinet construction
- Distinctive O-ring design for vibration damping and surface protection
- Professional 16-ohm impedance optimised for distributed systems
- Impressive 118 dB SPL maximum output from compact enclosure
- 70W AES continuous power handling (280W peak)
- Frequency response: 110 Hz to 17 kHz (-10 dB)
- Axisymmetric 60-degree nominal dispersion pattern
- Multiple mounting points (2x M6, 3x M4, 1x M10 on bracket)
- Includes custom multi-adaptable mounting bracket
- Ultra-compact dimensions: 120 x 120 x 126 mm
- Lightweight design at only 1.55 kg
- Available in black or white textured polyurethane finish
- Custom RAL colour finishes available on request
- Epoxy powder-coated protective grille
- Ideal for museums, restaurants, lounges, conferences, and discrete installations
- Plug-and-play compatibility with Outline L3000 power amplifier
| Additional Information | Type: 1-way ultra-compact passive enclosure Driver: 4″ High Power & Dispersion Full-range Driver Frequency Response (-10 dB): 110 Hz – 17 kHz Nominal Dispersion: Axisymmetric 60° Impedance (Nominal/Minimum): 16 Ω / 12.7 Ω Power Handling (Continuous/Peak): 70W / 280W AES Maximum SPL Output: 118 dB SPL Cabinet Material: HCDF (Hydrophobic Compact Density Fiber) Cabinet Finish: Black or White textured polyurethane paint Grill: Epoxy powder coated Installation Points: 2 x M6 + 3 x M4 on rear panel + 1 x M10 on bracket Dimensions (H x W x D): 120 x 120 x 126 mm (4.7″ x 4.7″ x 5″) Weight: 1.55 kg (3.4 lb) Included Accessories: Multi-adaptable mounting bracket Shipping Dimensions (H x W x D): 130 x 170 x 150 mm Shipping Weight: 2 kg Country of Origin: Italy |
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| Main Sub Category | Audio |
Sales FAQ - Frequently Asked Questions
Here you'll find answers to our most asked questions about our sales products. Still can't find quite what you're looking for, or have something we should know? Send us an email, we're happy to help!
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Q1: Do you ship to my country?
A1: Most likely, you can see what countries we ship to in the drop-down at the checkout.
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Q2: Can i get a demo of the equipment?
A2: While we do do sales, we are predominantly a hire company so we do have some stock on hand but we dont have a storefront. If you'd like to get a demo on some equipment please call and we'll arrange an appointment to see the equipment if we have it available.
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Q3: What are the accepted payment methods?
A3: We accept online card payment with MasterCard, VISA or direct deposit.
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Q4: Does the price include GST?
A4: Our online prices displayed all include GST and are shown in AUD currency.
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Q5: When do I receive my order?
A5: Most orders are dispatched from Melbourne but some orders are dispatched from warehouses located in different states of Australia, sometimes items are sourced directly from suppliers. Delivery time will depend on the shipping country and address.
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Q6: Do I have to pay international taxes and duties?
A6: Your order may be subject to import duties and taxes, which are levied once a shipment reaches your country. We cannot control and is not responsible for any duties/taxes applied to your package upon delivery. You will be responsible for paying additional charges for customs clearance. Customs policies vary widely from country to country; please contact your local customs office for further information.
