Acoustic Energy AE1 40th Anniversary Edition

In 1987, the loudspeaker world was shaken by the arrival of the Acoustic Energy AE1 – a compact monitor that defied the norms of that time. The AE1 was a revelation: a small speaker that delivered the kind of dynamic range, clarity, and bass extension typically reserved for much larger enclosures.

The original AE1 was born from the vision of a compact speaker that could deliver studio-grade performance without compromise. It was a bold departure from the boxy, inefficient designs of the time – and it worked. The AE1 became a staple in studios and audiophile systems alike.

Now, decades later to celebrate 40 years of this ground-breaking loudspeaker, we’re proud to launch the AE1 40th Anniversary Edition bringing that legacy into the modern era – with cutting-edge engineering and timeless design.

Designing the new AE1 was no easy task. Not only was it a design classic but all the original parts have been out of production for some time, so we had to start from scratch.

With the sound of this speaker and its reputation for very high performance already well established, there was no room for wild variation from the original design. Each element had to be crafted to sound the same as the old, and while we smoothed off some of the rougher edges, it was with a very light touch so as not to destroy what was great about the original design.  This speaker also had to meet the approval of the many AE1 fans around the globe whilst also appealing to a new customer who may not be steeped in the tradition.

So we allowed ourselves a few modernisations weighed carefully to be at no detriment to the original.  The fundamentals of the high mass, high stiffness, straight sided cone driven by high BL motor, housed in a small, strong, heavy cabinet with classic twin front ports, paired to a metal dome tweeter, are the defining elements of this speaker.  

A completely new tweeter design was developed specifically to match the performance of the original, which has been long out of production. Featuring a larger 29mm voice coil, it supports a slightly larger aluminium dome to lower distortion through a greater radiating area when compared to the more usual 25mm dome. Whilst the dome profile is ultra-shallow to provide excellent bandwidth, it also features a large rear chamber to keep the fundamental resonance low and help absorb rear energy.  Plus, like the original, this tweeter is ferrofluid cooled and damped to give greater power handling, dynamics and lower thermal compression.

The new woofer was also developed to specifically match the characteristic sound of the original. The new cone is slightly larger, conforming to modern 125mm woofer standards, whilst the greater radiating area offers slightly higher efficiency, lower distortion and the ability to move more air.  The cone design was the key element to the original woofer and fundamental to the original speaker’s success, producing a very natural midrange, great power handling and dynamics for its size.  So we retained the straight sided aluminium profile and a little used forming process known as ‘spinning’ as opposed to the more usual pressing method.  The cone itself is then further strengthened by a thick, hard anodised ceramic layer coating on both sides… effectively forming a sandwich. 

Beneath the trademark aluminium ‘pointy’ dust cap, the new woofer further features a thermally conductive aluminium voice coil with a very powerful motor structure.  However, one modern improvement we allowed ourselves was the addition of an aluminium shorting ring in the motor structure.  This dramatically reduces the distortion caused by motional variation in the voice coil’s inductance.  We designed this woofer around a 5ohm DCR instead of the original 7ohms which was partly responsible for its reputation to require higher power amplification to drive it. Therefore, the new AE1s are easy to drive and require less power.

Drawing inspiration from the luxury ‘Signature’ version of the original speaker, the crossover uses low order filters and high-quality components to achieve a very natural ‘live’ dynamic sound.  We’ve balanced this latest version to be enjoyed more within a typical home audio, domestic environment rather than the studio monitor original.  So it has a warm natural midrange, good bass weight for its size, forgiving high frequencies and exceptional punch throughout its operating range.

All these drive unit and crossover enhancements are housed inside a luxuriously finished cabinet. Coated in ten layers of high gloss black paint or walnut wood veneer, the cabinet has been tuned to match the characteristic sound of the original AE1. The cabinet has been upgraded to include our RSC material which has been successfully applied in all of our high-performance models from Corinium down to the 300 series. By increasing the cabinet stiffness compared to our usual formula, we’ve captured the sound of the original concrete lined cabinets without any of the production drawbacks.  Finally, since the original ports were no longer available, we’ve re-tooled them with some subtle tweaks, including the addition of an internal flare to reduce the distortion and allow more bass output.

Offering unparalleled levels of performance, quality and value the AE1 will sit equally comfortable in the home or the recording studio. The result is a loudspeaker with clean, uncluttered lines delivering a thrilling and powerful presentation worthy of the AE1 mark that discerning Acoustic Energy owners have come to expect for 40 years.

The AE1 – The Legend Continues