1723 Tower S THX

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Big sound shouldn’t require a big room. The 1723 Tower S takes everything that defines our benchmark 1723 Tower – scale, precision, musicality – and delivers it in a form that fits more spaces. With the same THX Ultra certification, custom-built components, and sealed or ported flexibility, it’s proof that smaller doesn’t mean compromised.

Whether you’re after immersive home theater or a stereo system that makes you feel every note, the Tower S delivers reference performance with a smaller footprint. And just like the full-size version, it comes with a 60-day risk-free home trial and a 10-year warranty for real peace of mind.

Tech Specs | 1723 Series

Based on 72 reviews
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SMALLER SPEAKERS.
SAME BIG SOUND

The 1723 Tower S is THX Ultra certified — engineered to meet the same strict standards for scale, accuracy, and headroom as our larger models. But with 6.5″ drivers and a reduced cabinet size, it’s better suited for rooms where space matters.

Its custom waveguide-loaded tweeter and 2.5-way driver layout create an immersive, detailed soundstage that excels with both movies and music. Only the top drivers handle the midrange, ensuring vocal clarity and imaging precision, while the lower drivers reinforce low-end weight and authority. And with flexible port tuning, you can tailor the bass to your space for full control over the final sound.

“What nevertheless impresses is the calm, relaxed and undaunted way it plays music, and that it still manages to render each and every hit of the drums and every single blow with palms and fingers.”

“1723 S Towers are a superb choice. These can play very loud without strain and prove that the THX badging is more than just a trademarked logo.”

“If you’re in the market for a pair of speakers at this price point, you’d be taking no risk auditioning the 1723 Tower S in your home.”

BUILT FOR
REAL-WORLD ROOMS

The 1723 Tower S isn’t just built to sound great in theory, it’s built to sound great in actual homes. Each cabinet is made from thick HDF, internally braced, and finished in hand-painted satin. No vinyl wraps, no shortcuts.

Compact enough for tighter setups, yet bold enough to anchor a serious system, the Tower S delivers full-scale performance in a smaller form. From the sculpted waveguide to the rock-solid base, it’s pure Norwegian precision from top to bottom.

BUILD YOUR
REFERENCE SYSTEM

The 1723 Tower S is a perfect match for the rest of the 1723 and 1723 S lineup — sharing the same tuning, drivers, and cabinet materials. Add a 1723 Center S for seamless front-stage clarity, 1723 Surround S or Height S for wraparound immersion, or a 1723 Subwoofer for bass to complete the picture.

Whatever your space, you can build a world-class system with a consistent, high-performance signature across every speaker.

EXPLORE DEEP BASS

ENGINEERING 
EXCELLENCE

  • CABINET

    High-Density Fiberboard (HDF) construction with full internal bracing. Denser and more inert than MDF, it reduces resonance and improves clarity. Slight cabinet tilt optimizes driver alignment for improved phase coherence and imaging

  • ENCLOSURE TUNING

    Dual rear ports allow sealed or ported operation. Run sealed for speed and precision or open one or both ports for more depth and output.

  • FINISH

    Hand-painted Satin Black or Satin White finishes with zero vinyl and long-term durability.

  • MAGNETIC GRILLES

    Metal-core grilles wrapped in acoustic cloth. Held in place with hidden neodymium magnets. Rubber buffers protect the finish.

  • BINDING POSTS

    Premium rhodium-plated speaker terminals mounted on an aluminum backplate for a secure connection — whether you’re using banana plugs, spades, or bare wire.

  • SPIKES KIT

    Each speaker ships with adjustable steel spikes and protective discs, giving you flexible, stable placement on hard or carpeted floors.

  • TWEETER AND WAVEGUIDE

    28mm synthetic soft dome tweeter in a custom waveguide for wide dispersion, improved integration, and natural high-frequency response.

  • MID-BASS DRIVERS

    Four 6.5” custom drivers designed for low distortion, controlled bass, and a clear, musical midrange.

  • CROSSOVER

    2.5-way design using steep 24dB/octave slopes for precise integration and reduced driver overlap. Tuned for detail, dynamics, and tonal neutrality.

  • THE PUCK

    Our custom-machined puck feet are mounted with M6 bolts for rock-solid floor contact and improved stability. They offer a clean alternative to traditional spikes — ideal for sensitive floors.

a word from our customers

Douglas H

“Loving my 1723 Tower S. Big upgrade from my great Klipsch RF-63’s”

Jacek K

“The pleasure of listening has reached a higher level. Arendal exceeded my expectations.”

Thorbjørn S

“…these are awesome speakers for both electronic music and rock!”

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THX CERTIFIED PERFORMANCE

The 1723 Tower S doesn’t just carry the THX Ultra badge — it earns it. Designed to meet the samestandards for clarity, output, and dynamic range as our larger models, it brings cinema-grade scale tosmaller rooms. And for music lovers? That same engineering delivers purity, precision, and presenceacross your favorite recordings.​
It’s not just about watching movies. It’s about hearing everything exactly as it was meant to be heard.

This speaker is for you if

high-end-tower

You desire a high-end Tower for Stereo and Home Cinema.

floor-plan

If your room measures up to 35m².

subwoofer-icon

You want full range sound without needing a subwoofer.

dimensions and tech specs

Design

2.5-way

Dimensions (H/W/D)

98 x 24.5 x 32 cm
(38.6 x 9.6 x 12.6 in)

Dimensions with feet (H/W/D)

102.1 x 31.5 x 32 cm
(40.2 x 12.4 x 12.6 in)

Weight

31.3 kg
(69 lbs)
(including spikes kit)

Enclosure

Sealed / Vented

Enclosure material

High Density Fiberboard (HDF)

Ports

2 x 2.6″

Break-in for optimal performance

50 hours

Recommended amplifier

Up to 400W RMS @ 4ohm

Included

Grilles. Manual. Spikes Kit. Rubber feet. Port plugs.

handbook

Download
Tweeter

28mm

Woofer

4 x 6.5″

Frequency response
Sealed 49Hz-20kHz (+/-3dB)
1 vent 39Hz-20kHz (+/-3dB)
2 vents 35Hz-20KHz (+/-3dB)
Impedance

4-ohm nominal

Crossover frequency

100Hz / 1500Hz

Sensitivity

89dB / 2.83V / 1m

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.

Polar

The charts display frequency response measured at different angles, the sum of which is referred to as power response. Much scientific research has been undertaken on this subject and a linear power response has proven a substantial impact on the overall sound, because the frequency response is more even in all directions. This means an Arendal Sound speaker will be more tolerant of differences in room shape, size, construction and materials.

Impendence

The impedance charts are electrical measurements of the loudspeaker’s resistance vs frequency.

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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