Acoustic Energy Squares² the Performance - Again!
/The law of diminishing returns doesn’t seem to apply to Acoustic Energy. Each series improvement—100, 300, 500, or Corinium—represents a significant step up in performance, build quality, and finish, while maintaining the distinctive Acoustic Energy sound signature that invites an enjoyable listening experience, whatever the budget.
The original 300 Series, launched in 2017, was an excellent solution. The standout performer at the competitive £2,000 price point, the AE320, was a three-way design with a relatively small footprint yet great control. The new AE320² builds on this, enhancing performance without inflating the price.
It “stands on the shoulders of the Corinium project,” both visually and in terms of sound performance. Acoustic Energy states that the new 300² Series is “a completely new acoustic and aesthetic design from the ground up,” sharing no components with the outgoing model.
Specifications
The most obvious change is the new mid-woofer—a blend of paper and coconut husk. The AE320² comprises a 120mm midrange driver, two 140mm bass drivers, and a 29mm tweeter. The new material delivers a smooth, natural, and refined response, embodying warmth and clarity while retaining the punch and pace of the previous aluminium cone. Partnered with a newly developed soft-dome tweeter derived from the Corinium project, it offers open, delicate, and natural high frequencies, tonally matching the mid-woofer to enable seamless integration across the audible range.
The crossover frequencies are set at 240Hz and 2,800Hz, with a frequency response from 33Hz to 29kHz. These are true three-way speakers with an easy-to-drive 6-ohm rating and 92dB sensitivity—making them more sensitive than the outgoing 300 Series. Amplifier matching should be straightforward. Acoustic Energy appears to have found a material with properties very similar to the carbon fibre used in the 500 range—light, fast-response drivers that enhance presence, speed, and transparency.
A first at this price point, the new 300² Series features constrained-layer RSC™ (Resonance Suppression Composite) cabinets, pioneered in the Reference Series nearly 15 years ago. This advanced construction is claimed to "significantly reduce cabinet radiation, allowing the drive units to perform at their best without enclosure interference, ensuring pure, uncoloured, and natural sound." There is significant internal bracing, with the rear housing a circular, traditional port for the midrange and tweeter section of the cabinet, and a slot-shaped port positioned between the two bass drivers. This arrangement is typically used when the midrange and tweeter drivers are isolated from the bass drivers to prevent colouration, resulting in better clarity. The new outriggers provide plenty of adjustability and a very sturdy setup.



The Proof is in the Pudding
We set these up in our large demo room (L = 8m, W = 6m, H = 3.3m) with the Naim NSC 222 and NAP 250. Every room is different, but positioning was very easy. Good imaging, depth, and transparency were best achieved with the speakers positioned around 50cm from the back wall and set about 1.5m wider than an equilateral triangle setup, with the slightest toe-in. There seems to be quite a wide dispersion—linear in both height and width—helped by the new WDT waveguide. Midrange presence and bass speed are where these speakers excel. The higher frequencies are clear and rounded, with no real sense of brashness, harshness, or brittleness.
Moving away from Naim source and amplification, we tried them with the Rega Aethos and the Auralic Vega S1 streaming DAC with its dedicated power supply. This setup seemed to extract even more from the speakers, delivering better resolution and a very clear presentation of the fine adjustments available in the Auralic DAC. I have no idea why this may be—it's one of the quirks of Hi-Fi systems. Component synergies are often experienced in ways that technical specifications alone don’t always predict.
With the new 300² Series—including the standmount AE300², the small floorstander AE309², the large three-way AE320², and the on-wall AE307²—this range would make a phenomenal home cinema system.
It was a real pleasure to listen to these speakers, and a big thank you to Acoustic Energy for the loan of these pre-production models straight after their debut at the Bristol Hi-Fi Show…
Bristol Hi-Fi Show 2025 - Brad from Audio T sat down with James, Acoustic Energy's Creative Director and the mind behind the design of these speakers, to discuss the new range.
Book an audition and experience these speakers firsthand. Whether you're looking for exceptional clarity, dynamic range, or an immersive soundstage, a personal listening session will let you hear exactly what they can do in a real-world setting. Visit us in-store to discover how they perform with your favourite music.
Thank you for reading,
Justin, George and Max - Audio T Bristol
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*All prices, credit terms and interest rates quoted are correct at the time of going to press but may be subject to change. E&OE