1723 Surround S THX

Downscaled version of the 1723 Surround

The 1723 Surround S is a downscaled version of the 1723 Surround. The materials, quality, drivers and crossover components are just the same as you would expect. The only difference is smaller enclosure with 6.5” drivers in 1723 Surround S, instead of the 8” in the 1723 Surround. Using the same 6.5” mid-bass driver and waveguide tweeter on the front baffle as used in the other 1723 S models, excellent tonal matching is assured. To deliver an all-enveloping surround field and assist in peerless surround steering, we fitted custom built 4” full-range dipolar drivers to the angled side baffles into our TriAxial speaker. The 4” surround drivers are imported straight from the original 1723 Surrounds, as this driver is optimal for the task, regardless of the main driver size. The sheer performance, level of detail and dynamics delivered by the Surround S is unheard of in this price category. Expect the Surround S to be compared to much higher priced surround speakers on the market.

1723 Surround S THX

Heavy speaker. Heavy mounting.

You would want to use the included flush-mount brackets for your 1723 Surround S THX speakers. Premium fit with rubber protection to avoid scratches on the speaker.

1723 Surround S 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 S THX


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

1723 Surround S THX


High-performance tweeter in an elegant and highly accurate waveguide backed up by our custom 6.5″ woofer, and dual (2) 4″ side drivers.

Professional reviews

They may be some of the best looking speakers I've seen in a while


EISA (the Expert Imaging and Sound Association) is the unique worldwide association of over 60 special interest magazines and websites that test and report on hi-fi, home theatre, in-car electronics, mobile devices and photography from 29 countries.

EISA award

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!

Compare surround speakers

Compare surrounds

Technical specifications

2 x 4″
High Density Fiberboard (HDF)
200Hz / 1500Hz
59-20kHz (+/-3dB)
4-ohm nominal
Manual. Rubber pads. Wall mounting bracket.
38.5H x 37.1W x 17.5D cm
13.7 kg
50 hours
Up to 250W 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.