Børresen BM2 Bass Module Debuts at High End Vienna 2026: Smaller, Lighter, and Still $10,000 

Audio Group Denmark and Børresen are back at High End Vienna 2026 with the new Børresen BM2 Bass Module, a smaller and less expensive follow-up to the $21,000 BM3 Bass Module introduced earlier this year. At $10,000, the BM2 brings the company’s folded-dipole bass concept into a more compact and lighter enclosure, while still targeting listeners already invested in the Audio Group Denmark ecosystem.

We have heard the larger BM3 at previous events, and within a full Børresen/Aavik/Ansuz system, it was rather effective at adding scale, speed, and low-frequency weight without turning the presentation into a blunt-force trauma exercise. Was it SVS or top-tier REL quality in terms of pure subwoofer value or broader system flexibility? That is harder to say, especially at its rather ambitious asking price. The BM2 appears to be the more approachable version of the same idea, but “approachable” is doing some heavy lifting when the price is still $10,000.

“Fitting the folded dipole principles of the BM3 into the much tighter framework of the BM2, while working with fewer but larger drivers, was anything but easy. Looking at the final result, however, it was entirely worth the effort” —Michael Børresen, CTO, Audio Group Denmark

So what exactly does the new Børresen BM2 Bass Module bring to the table, and who is this compact folded-dipole bass system really for? Let’s take a closer look.

Folded Dipole Configuration

Like the larger BM3, the Børresen BM2 uses the company’s folded dipole architecture, which is intended to avoid some of the acoustic compromises associated with conventional sealed or ported subwoofer designs.

The BM2 uses two 10-inch drivers. Børresen says the combined cone area is comparable to that of a traditional 15-inch woofer, allowing the BM2 to generate meaningful low-frequency output from a more compact cabinet.

Inside the folded dipole structure, both drivers share a common front opening, while the rear of each driver remains open toward the back of the enclosure. That arrangement allows the cones to radiate in opposite directions and phases, creating the side cancellation pattern that is central to the folded dipole approach.

Because the BM2 does not operate like a conventional pressurized box, Børresen claims the design reduces room interaction and helps minimize some of the boom and fatigue that can occur when low-frequency energy overloads a room. That does not make room placement irrelevant, because physics still likes to collect rent, but the design is intended to make integration easier and more natural within a properly matched system.

The larger BM3 has already demonstrated that Børresen’s folded dipole concept can add scale, weight, and speed inside the Audio Group Denmark ecosystem without sounding slow or bloated. The BM2 applies the same core idea in a smaller and less expensive package, with the goal of delivering useful bass extension while preserving transient response and control.

Crossover Design

Unlike many modern subwoofers that rely heavily on digital signal processing, the Børresen BM2 uses a fully analog crossover built with selected high-grade components. The goal is to avoid the latency that DSP can introduce and help preserve timing accuracy between the bass module and the main loudspeakers.

The BM2 includes an adjustable low-pass filter, which allows frequencies below the selected crossover point to pass while attenuating frequencies above it. The crossover point can be manually adjusted from 30 Hz to 170 Hz using the rear-panel controls, giving listeners more flexibility when matching the BM2 with different loudspeakers and room setups.

Once the crossover frequency is selected, the BM2 rolls off frequencies above that point at a 24 dB/octave slope. That should make integration more predictable, especially in systems where the goal is bass reinforcement rather than turning the room into a poorly supervised nightclub.

More Control, Less Low-Frequency Sludge

The BM2 is not designed simply to pump out loud bass. Børresen is positioning it as a low-frequency module intended to integrate naturally with high-performance loudspeakers while preserving timing, coherence, and musical flow.

The BM2 uses built-in Class D amplification and an analog crossover topology, with Aavik amplifier technology inside the platform. That combination is intended to give users more control over system matching without relying on heavy DSP correction or the latency that can come with it. Whether it integrates seamlessly with “any” audio system will still depend on the loudspeakers, room, placement, and setup. Because, annoyingly, physics continues to be a thing.

With the BM2, Børresen continues its approach to low-frequency reproduction with an emphasis on extension, speed, precision, and natural integration rather than brute-force output alone. The result is a bass module designed to complement serious two-channel systems without imposing some of the acoustic compromises often associated with conventional subwoofer designs.

Resonance & Grounding

Resonance control and mechanical grounding are also important. The BM2 is designed to work with Ansuz Darkz resonance-control devices to minimize the transfer of external vibrations from the floor into the cabinet, while also providing an efficient mechanical pathway for internally generated vibrations to dissipate without returning to the enclosure as delayed resonances. 

Comparison

The Bottom Line

The Børresen BM2 is not aimed at mainstream subwoofer buyers. At $10,000, it is for existing Børresen owners, Audio Group Denmark loyalists, and likely buyers of the new Børresen A-Series loudspeakers, which also debuted at High End Vienna 2026.

What makes the BM2 different is its folded dipole architecture, analog crossover, lack of DSP/EQ, and intended use within the Børresen/Aavik/Ansuz ecosystem. Competitors from REL, JL Audio, DALI, Raidho, Perlisten, and SVS offer very different paths to deep bass, often with more output, more adjustment, or lower pricing.

The BM2’s case is simple: it has to integrate better and sound faster in the right system. At $10,000, being different is not enough.

The Børresen BM2 and BM3 aren’t designed for your average subwoofer buyer, with prices at $10,000 and up. Potential customers are either bass-performance obsessed or already own Børresen speakers such as the A-Series, which has also debuted at Hi-Fi Vienna 2026.

Price & Availability

After it shows at High-End Vienna, the Børresen BM2 will be available beginning October 2026 through Authorized Audio Group Denmark Dealers at the following price (may vary by region):

• Børresen BM2: EUR 9,000 / USD 10,000
• Børresen BM3 EUR 18,000 / USD 21,000

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