1723 Surround THX

TriAxial speaker

In starting with a statement product like the The 1723 Tower and 1723 Monitor, we set ourselves a challenge in designing a matching surround speaker, that could keep up with the capabilities of our front loudspeakers. Using the same 8” mid-bass driver and waveguide tweeter on the front baffle as used throughout the 1723 Series, excellent tonal matching is assured as is pin-point imaging. To deliver an all-enveloping surround field and assist in peerless surround steering, we fitted custom built full-range dipolar drivers to the angled side baffles into our TriAxial speaker.

1723 Surround THX


Surround speakers have never been the same after Tri-Axial designs from Arendal Sound came to market. The best solution of directivity and dipole design creates a big and wide, yet detailed and directive soundstage. It makes a big difference in your system.

1723 Surround THX


Rhodium-plated copper terminals. The aluminum backplate is precisely recessed for a perfect fit in the HDF cabinet.

1723 Surround THX


Magnetically fastened steel grills, wrapped in premium cloth for a smooth look.

Professional reviews

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.


The Arendal 1723 THX surround system is an unqualified success from almost every standpoint I can imagine. Incredible value and highly recommended!

Home Theater & HiFi

I would rate this first Arendal Sound surround set as a big entrance. Essentially conceived for the sound reproduction in home cinemas, this set delivers more than enough arguments to stand up to a fierce competition

Audio E Cinema Em Casa

With the 1723 system, Arendal has delivered a real highlight for home-cinema fans. The extreme dynamics, the effortless precision and the flawless finish make the Arendal system a real recommendation for ambitious movie fans.


Listening to this system brought a smile to our face and reminded us of how good a 5.1 system can sound when done correctly.


THX Certified

All our 1723 speakers are Certified by the very strict testing protocols of THX Ultra where each speaker must pass a set of 400 measurements. The THX Certification does not mean it is a dedicated home speaker, but rather a guarantee of tight consistency within well-established acoustic parameters. THX Certification is as much about music, as for movies.

The engineers at THX Labs utilize a proprietary scientific testing methodology to ensure the highest audio fidelity possible. All 1723 speakers passed the THX Ultra Certification without any change to the products, meaning our standards already exceed THX Ultra level out of the box!

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Technical specifications

2 x 4″
High Density Fiberboard (HDF)
200Hz / 1400Hz
58-20kHz (+/-3dB)
4-ohm nominal
Manual. Rubber pads. Wall mounting bracket.
45H x 43.2W x 21.6D cm
17.4 kg
50 hours
Up to 300W RMS @ 4ohm

Frequency response

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 response

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.

Impedance response

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

Product compliance

CE marking is an administrative marking with which the manufacturer or importer affirms its conformity with European health, safety, and environmental protection standards for products sold within the European Economic Area (EEA).
RoHS is an abbreviation for “Restriction of (the use of certain) Hazardous Substances in electrical and electronic Equipment”. This directive restricts the use of ten hazardous materials in the manufacture of various types of electronic and electrical equipment. It is closely linked with the Waste Electrical and Electronic Equipment Directive (WEEE) 2002/96/EC which sets collection, recycling and recovery targets for electrical goods and is part of a legislative initiative to solve the problem of huge amounts of toxic electronic waste.