Compact Floorstanders with Natural, Full-Range Sound

Incoming Shipment Expected Late July

The next U.S. shipment of Acoustic Energy AE309² speakers is expected to arrive in late July with customer orders expected to begin shipping shortly afterward. Reserve now as quantities will be limited.

“Their wonderfully balanced sound gives class leaders at this level a real run for their money.” - What Hi-Fi ★★★★★

Key Features

• Compact 2.5-way floorstanding speaker
• Two 120mm paper and coconut-fiber drivers
• Newly developed 29mm soft-dome tweeter
• Driver technology influenced by the flagship Corinium project
• RSC™ constrained-layer MDF and bitumen cabinet
• Rear slot-shaped bass-reflex port
• Rated bass extension down to 33Hz
• 89dB sensitivity
• Single-wire binding posts
• Magnetic, color-matched grilles
• Solid aluminum feet with protective spike covers
• Available in walnut, matte black, and matte white
• Designed for medium to large listening rooms

The Acoustic Energy AE309² is a slim, beautifully proportioned floorstanding speaker designed to deliver the scale, bass extension, and room-filling presence of a larger tower without dominating your living space.

Building on the award-winning performance of the Acoustic Energy 300 Series, the AE309²—also known as the AE309 Mk2—introduces new paper and coconut-fiber drivers, an upgraded soft-dome tweeter, and advanced cabinet construction developed using research from Acoustic Energy’s flagship Corinium loudspeaker.

Big-Speaker Performance Without the Bulk

"The look and feel of a much more expensive loudspeaker" - The Ear

At just 35.4 inches tall and 6.7 inches wide, the AE309² has a noticeably smaller footprint than many traditional floorstanding speakers. Its slim cabinet makes it easier to integrate into living rooms, dedicated listening spaces, and shared-use rooms while still producing convincing low-frequency weight and a spacious presentation.

A 2.5-way driver arrangement combines two 4.7-inch paper and coconut-fiber drivers with a newly developed 1.1-inch soft-dome tweeter. This configuration gives the AE309² greater bass extension, dynamic range, and room-filling ability than a typical stand-mount speaker while maintaining the speed, focus, and coherence for which Acoustic Energy is known.

The AE309² is particularly well suited to medium and larger rooms, but its compact dimensions also make it a compelling option for listeners who want floorstanding performance in a more space-conscious system.

New Paper and Coconut-Fiber Drivers

“It delivers a performance that balances Hi-Fi sensibilities with pure and simple good fun.” - AV Forums

The AE309² uses two newly developed 120mm drivers constructed from a proprietary blend of paper and coconut fiber.

Research from Acoustic Energy’s flagship Corinium project helped shape the design of these new cones. The material is engineered to combine low mass, stiffness, and controlled resonance, allowing the drivers to respond quickly while minimizing unwanted breakup.

One driver handles bass frequencies while the second covers both bass and midrange information. This 2.5-way configuration provides greater low-frequency output and scale while preserving a clear, naturally integrated midrange.

Vocals remain focused and expressive, instruments retain their natural tone, and bass lines are delivered with speed, definition, and genuine physical presence.

All-New Soft-Dome Tweeter

A newly designed 29mm soft-dome tweeter provides an open, detailed, and refined high-frequency presentation.

The tweeter is slightly recessed into the front baffle to improve integration with the midrange driver and provide broader, more consistent dispersion throughout the listening area. This helps the AE309² create a stable stereo image that remains cohesive even when you are not seated in one exact position.

High frequencies are revealing without becoming aggressive, making the AE309² well suited to long listening sessions and a wide variety of recordings.

RSC™ Constrained-Layer Cabinet

Controlling cabinet resonance is essential to preserving clarity, detail, and accurate imaging. The AE309² uses Acoustic Energy’s RSC™ constrained-layer cabinet construction, combining 18mm MDF with a bitumen damping layer.

This multi-layer approach reduces the cabinet vibrations that can blur fine detail or add unwanted coloration. By allowing the enclosure to contribute less of its own sound, the AE309² produces a cleaner background, better-defined imaging, and more natural reproduction of voices and instruments.

The technology was influenced by development work on Acoustic Energy’s reference-level Corinium loudspeaker and represents a significant level of cabinet engineering at this price.

Deep, Controlled Bass

A rear-mounted slot-shaped duct port reinforces low-frequency output while reducing turbulence and audible port noise.

The AE309² reaches down to a rated 33Hz, giving music convincing foundation and scale without requiring a subwoofer in many stereo systems. Bass is full and substantial but remains controlled, tuneful, and well integrated with the midrange.

From acoustic bass and kick drums to electronic music, orchestral recordings, and movie soundtracks, the AE309² delivers low frequencies with both weight and definition.

For the best balance, begin with the speakers positioned at least several inches from the rear wall and away from room corners. Additional space behind the speakers may provide even greater bass clarity, depending on your room.

Why Buy Acoustic Energy AE309² Speakers from Eardrum Audio?

Eardrum Audio is an authorized Acoustic Energy dealer. Your speakers include the full manufacturer warranty and direct support before and after your purchase.

We can also help with amplifier matching, system planning, room placement, and selecting the best speaker for your listening preferences and room size.

Authorized Dealer • Full Manufacturer Warranty • Direct Personal Support

Reserve your Acoustic Energy AE309² speakers today for priority allocation from the incoming late-July shipment.