1723 Subwoofer 2S

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Dual drivers, twice the fun. 1723 Subwoofer 2S offers an exceptional balance between perfect music reproduction as well as sheer bass depth and output. Utilising two of our proprietary 13.8″ drivers, driven by our smart 1200W RMS Avalanche 1200 IQ amplifier that offers ample adjustability for any setup. The cabinet is sealed and made of HDF, and is sized to provide an optimally damped system that produces deep, undistorted musical bass with a complete lack of smearing or coloration.

The dual opposing, force-absorbing driver layout delivers clean, deep bass, without cabinet movement subtracting anything from the driver output.

Literally startling dynamics. We believe this is the world’s best subwoofer for music. At any price level.

Tech Specs | 1723 Series

Based on 89 reviews

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FORCE. BALANCE.
FOCUS

This isn’t about more drivers for the sake of it. The 2S is engineered to deliver reference bass in rooms where clean extension, tight integration, and musical accuracy matter most. By mounting the drivers in a dual back-to-back configuration, distortion is cut in half — even at high sound pressure levels (SPL).

The result? Deep, dense, powerful bass without the blur. It’s ideal for music-first systems, cinema rooms, or anyone who values low-end energy without added distortion.

“The Subwoofer 2S adds a significant depth to the experience, delivering a powerful, room-filling rumble with each throttle up and flyby, enhancing the thrill”

“The build quality is terrific for the class, and the 1723 Subwoofer 2S is built like a brick.”

“If you want to enjoy home cinema sound at the highest level and physically feel powerful, precise low-frequency sound, the 1723 S2 subwoofer from arendal is ideal.”

ENGINEERED TO BE
UNMOVED

The 2S is built from thick CNC-machined HDF and internally braced to keep resonance in check. Its dual drivers cancel mechanical force internally, meaning the cabinet stays steady — even when output isn’t.

It comes finished in hand-painted Satin Black or Satin White, with rubber-damped feet for added isolation. Every element reflects our Norwegian design values — focused, purposeful, and made to endure. For serious listeners with sensitive spaces this is precision bass with no downside.

ENGINEERING  EXCELLENCE

Driver

Dual 13.8″ custom long-throw drivers in force-canceling configuration. Aluminum shorting rings, vented pole pieces, and high-efficiency suspension for tight, deep response with minimal distortion.
AMPLIFIER

Avalanche 1200 IQ amplifier with 1200W RMS power, parametric EQ, low-pass filters, presets, and app control. Built for high-output control and long-term reliability. Its high damping factor ensures precise control over both drivers, eliminating overshoot and keeping bass tight and accurate at all volumes.
ENCLOSURE

Sealed HDF cabinet with internal bracing and acoustic damping. Tuned for clarity, speed, and transient control, with time-domain precision engineered to minimize group delay and ensure seamless integration across your system.
ISOLATION

Rubber-damped feet provide mechanical isolation, improve stability, and reduce energy transfer to the floor — ideal for both hard and carpeted surfaces.
FINISH

Hand-applied Satin Black or Satin White multi-layer paint finish. No vinyl. No shortcuts.

Reviews from our customers

Excellent

4.9 out of 5
…these speakers are of the highest quality build and provide excellent performance…

Scott McKanna
Heads & shoulders above any other audio buying experience in my 53 years of living!

John Collier
Even my wife was like, those speakers are great!

Richard Lawrence
Fast delivery. Best product i have ever tested. Good customer service!

Håvard D. Jenssen
Above and beyond! They really stand by their products.

Sid
…quality build very impressive and sound for home the best alI have had…

Tom Witziers
Speakers sound amazing and the build quality is top notch. Couldn’t be happier.

Talosian
My highest recommendation even for those who can afford much more expensive gear!

Gladiator
What made my experience great; that the level of customer service was outstanding.

Garvin Worrell
Value is incredible. Sound is huge. Super pleased with purchase.

Jeffrey Mercado

This speaker is for you if

If you desire flagship, dual-driver model with unparalleled precision and low distortion.

If your room spans up to 40m².

If you prefer App-guided setup and integration.

dimensions and tech specs

Dimensions (H/W/D): 53 x 42 x 50 cm
(20.9 x 16.5 x 19.7 in)
Weight: 41.4 kg
(91.6 lbs)
Enclosure: Sealed
Enclosure material: High Density Fiberboard (HDF)
Break-in for optimal performance: 50 hours
Included: Power cable. Manual.

handbook

Download

Woofer: 2 x 13.8″
Frequency response: EQ1 17Hz-200Hz (+/-3dB)
EQ2 24Hz-200Hz (+/-3dB)
EQ3 33Hz-200Hz (+/-3dB)

handbook

Download

Frequency

Frequency response does not reflect maximum output but shows its true response in a anechoic chamber. Typically you will see an elevated response in the bass response below 40Hz in room due to room gain, which can add around 6dB pr. octave under 40Hz depending on the size of your room.

CEA 2010

CEA-2010 is measured at 2m distance, following current guidelines. CEA-2010 measurements should be presented in 1m Peak measurements currently, although many are still using 2m RMS, so we include these as well.

Please note that our vented design is extremely difficult to accurately measure as the port and driver are on different planes. We are suffering some output on CEA-2010 measurements for this reason.

REAL PEOPLE, REAL STORIES

After tackling countless audio challenges, many have finally discovered the sound they’ve been longing for.
Explore these real-life journeys to find inspiration and see how Arendal Sound speakers have enriched the lives of listeners around the world.

BUY DIRECT

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Buying directly from Arendal Sound ensures you get the utmost value for your investment. You communicate directly with our industry-leading customer experience specialists for a fast, smooth, and accurate response.

No middlemen, minimal shipping.

And with a built-in 60-day audition period, we promise you a risk-free purchasing experience with no hidden catches. Experience it for yourself.

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