1723 Subwoofer 1S

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1723 Subwoofer 1S is the single driver compact subwoofer in our new market-leading statement series. It offers an exceptional balance between perfect music reproduction as well as sheer bass depth and output, with impeccable dynamics. Utilising a single 13.8″ driver and our smart Avalanche 800 IQ amplifier boosting easily 800W with undistorted power that offer ample adjustability for any setup.

Tech Specs | 1723 Series

Based on 83 reviews

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DESIGNED
FOR DEPTH

Built around a sealed enclosure and engineered for tonal balance and transient accuracy, the 1S is a perfect fit for both music-first systems and precision-focused home theaters. It delivers deep, articulate bass with exceptional control — especially in rooms where tight integration is key.

You won’t just hear it — you’ll feel it settle into the space around you. A sudden drum kick. A cello resonating with wood and weight. A heartbeat you didn’t know was in the score. It’s not about being the loudest subwoofer in the room. It’s about being the most honest. The one that tells the truth about your music, your movies, and your room.

“Arendal Sound continues to impress, and Subwoofer 1S is not an exception. With very flexible adjustability and impressive control, this subwoofer belongs in both hi-fi setups as well as the home cinema.”

“Their sheer solidity, together with their elegant industrial design, raises them to luxury-class products.”

“It’s a subwoofer that manages to sound really big and powerful but on the other hand also takes on a much more subtle role as part of the sound system.”

SMALLER SIZE.
SERIOUS BUILD

Like every 1723 subwoofer, the 1S is constructed from thick CNC-machined HDF and finished in hand-painted Satin Black or Satin White — a reflection of our Norwegian approach to design: minimal, purposeful, and made to last. Internally braced and acoustically damped, it minimizes cabinet resonance while supporting the driver under high output.

It sits on rubber-isolated feet for stability and floor decoupling, and its sealed design means no unwanted port noise or tuning tricks — just clean, controlled performance in real rooms. Form and function, guided by a culture that values both.

ENGINEERING  EXCELLENCE

Driver

13.8″ custom long-throw driver with oversized magnet structure, aluminum shorting rings, and vented pole piece for clean, distortion-free performance — even at extreme excursions.
AMPLIFIER

Avalanche 800 IQ amplifier with 800W RMS power, parametric EQ, low-pass filters, presets, and app control. Tailored to match the 1S driver for maximum control and reliability.
ENCLOSURE

Sealed HDF cabinet with internal bracing and acoustic damping. Designed to eliminate unwanted resonance and deliver tight, accurate response.
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
Value is incredible. Sound is huge. Super pleased with purchase.

Jeffrey Mercado
Above and beyond! They really stand by their products.

Sid
…these speakers are of the highest quality build and provide excellent performance…

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

Tom Witziers
Even my wife was like, those speakers are great!

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

John Collier
Fast delivery. Best product i have ever tested. Good customer service!

Håvard D. Jenssen

This speaker is for you if

You seek the pinnacle of sealed, single-driver sound with unmatched precision and low distortion.

Your room is up to 30m².

You value App-controlled integration and setup.

dimensions and tech specs

Dimensions (H/W/D): 48 x 33.5 x 45 cm
(18.9 x 13.2 x 17.7 in)
Weight: 24.5 kg
(57.3 lbs)
Enclosure: Sealed
Enclosure material: High Density Fiberboard (HDF)
Break-in for optimal performance: 50 hours
Included: Power cable. Manual.

handbook

Download

Woofer: 13.8″
Frequency response: EQ1 18Hz-200Hz (+/-3dB)
EQ2 25Hz-200Hz (+/-3dB)
EQ3 36Hz-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

We’re audio enthusiasts, just like you. Your concerns are ours, and we’re here to assist every step of the way.

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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