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Arendal Sound

Arendal Sound 1723 Surround THX

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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.

Black matte
White matte
Black gloss
White gloss

Arendal Sound 1723 THX 5.1 System review -  Audio E Cinema EM Casa
Arendal Sound 5.1 system test, Heimkino
Arendal Sound 5.1 system test, AVForums.com
Arendal Sound 1723 Surround 5.1 test, Hemmabio
Arendal Sound 1723 5.1 System review - Stereo+
Arendal Sound 1723 Surround 5.1 test, Lyd&Bilde

Engineering & Development

From the beginning, Arendal Sound products were developed with the mindset to recreate the original sonic event, with the highest level of accuracy. This requires a special consideration to balancing several factors: Dynamics, linearity, distortion, power handling, frequency response and Polar characteristics. Stress testing or accelerated life testing is a hallmark of all Arendal Sound designs. Each new design is required to pass a long list of difficult (if not insane) tests.

Lofty goals require custom parts and special attention to details at each step in the path to product realization. Each driver was specially developed from the ground up, requiring much expensive and special tooling. No off-the-shelf drivers were worthy of satisfying all of our goals. Over 2 years in development, following a painstaking progression from theory to reality - each driver is first modeled using advanced FEA (Finite Element Analysis) techniques to meet mechanical, electromagnetic and acoustic goals.

Premium Build Quality

Higher density and naturally better damped than MDF (Medium Density Fiberboard), using HDF (High Density Fiberboard) results in a sonically inert cabinet. Internal bracing has been strategically placed to increase overall cabinet strength and limit unwanted panel vibrations that may cause audible colorations.

We are especially proud of our new exclusive and fully custom made grills. For all Arendal Sound speakers we have made a free flowing, perforated metal grill which does not affect sound quality. We have then wrapped it with a clean black cloth to tone down the visually hard look, whilst simultaneously damping out any residual vibrations. Side grills are non removable.

We use no plastic parts.

Waveguide Tweeter

The heart of all Arendal speakers, our Tweeter utilizes a 28mm synthetic soft dome with custom designed, matching waveguide. The soft dome itself is sourced from the high end stable of Dr. Kurt Mueller. It is very light weight, totally pistonic to ultra high frequencies, optimally damped, produced to exceedingly tight tolerances and specifically chosen for its sweet sound character and consistent frequency response. The role of the waveguide is to take an already excellent tweeter and provide refinements to the tweeter’s performance.

Massive & Clean bass

The 8” woofer in the 1723 Surround are built upon the same core fundamentals as the the 13.8” subwoofer, but with application specific details changed. The 8” cone does not have the glass fibre reinforcement of the 13.8” as it is already stiff enough and the base material’s inherent self-damping with its proprietary cone treatment is chief quality. An entirely bespoke design, the 8” mid-woofer are optimised to cover a very wide frequency range from 1400Hz, down to the lowest bass notes without a hint of cone resonance.

To deliver an all-enveloping surround field and assist in peerless surround steering, we fitted two (2) 4” custom built full-range dipolar drivers to the angled side baffles into our TriAxial speaker crossed at 200Hz.

Speaker input posts

Not to be forgotten, the connection point of each speaker offers potential pitfalls for installation woes and signal degradations. Each binding post is made from copper (not brass or other lower conductivity metals), then CNC machined into shape. After the machining process is completed, each component is polished to insure burr free, smooth function and clean cosmetics. The final step is Rhodium plating. Chosen for its excellent conductivity, corrosion resistance and hardness; all serve to protect the copper material and music signal carried within.

Enclosure tuning

All Arendal speakers start with an optimal, low Q sealed box designs. Low frequency performance is accurately damped delivering a tight impulse response - the time the driver takes to stop moving after the signal has passed is very short - and rolls off at the natural sealed box rate of 12dB/octave below the combined box and driver resonant frequency. The 1723 Surround enclosures does not offer the ability to alternatively be used in a vented alignment such as 1723 Tower, Monitor or Center.

Crossover network

Crossover design is a culmination of model, measure, listen, remodel, remeasure, re-listen, all the while refining performance in increasingly small steps. This is the single most time consuming task in loudspeaker design, as it is the glue without which, even the best components can be made to sound disjointed and poor. As with the overall design goals for all Arendal Sound products, the crossover must be up to the task to deliver on the promise of hi-fidelity and robust construction, without compromise. All models within the Arendal Sound family share common drive units and this applies equally to the treble to mid-bass crossover designs across the range.


Luckily for you and for us, Arendal Sound products are extremely durable products which have gone through extreme stress tests during development. However failures may happen and if it does, you will always know we are backup you up. Arendal Sound have up to 10 Years warranty (5 for electronics) which cover all costs for you as a customer within the warranty terms.

Tech specs

Design TriAxial
Tweeter 28 mm
Side drivers 2 x 4"
Woofer 8"
Enclosure Sealed
Enclosure material High Density Fiberboard (HDF)
Xover freq. 4" 200Hz
Xover freq. 8" 1400Hz
Sensitivity 87dB/2.83v/1m
Freq. response 58-20kHz (+/-3dB)
Impedance 4-ohms nominal
Included Wall mounting bracket. Manual (1 pr. order).
Rubber pads.
Dimensions 45H x 43.2W x 21.6D cm
Weight 17.4 kg
Break-in for optimal performance 50 hours
Recommended amplifier Up to 250W RMS @ 4ohm