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.
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
Reviews from our customers
Excellent
4.9 out of 5
What made my experience great; that the level of customer service was outstanding.
Garvin Worrell
Fast delivery. Best product i have ever tested. Good customer service!
Håvard D. Jenssen
Heads & shoulders above any other audio buying experience in my 53 years of living!
John Collier
Even my wife was like, those speakers are great!
Richard Lawrence
…these speakers are of the highest quality build and provide excellent performance…
Scott McKanna
My highest recommendation even for those who can afford much more expensive gear!
Gladiator
…quality build very impressive and sound for home the best alI have had…
Tom Witziers
Value is incredible. Sound is huge. Super pleased with purchase.
Jeffrey Mercado
Above and beyond! They really stand by their products.
Sid
Speakers sound amazing and the build quality is top notch. Couldn’t be happier.
Talosian
Perfect music reproduction. sheer bass depth and output. impeccable dynamics.
13.8″ Driver
New improved driver design with impeccable dynamics and performance.
App Control
Get all settings in your hands. This is not a kindergarten app for subwoofers.
Magnetic grills
No plastic pins. Magnetic grills for a seamless and premium look and feel.
HDF cabinets in premium finish
Only the best is good enough. Resonance-free HDF cabinets with high-quality multi-layer paint.
Beast of a smart-amp
This amplifier doesn’t only look good, it has market-leading performance and technology. Unbeatable and unseen at this price. Boasting 800W real power down to 10Hz.
We have customized a new slick puck-design mounted with M6 bolts. They create extreme stability against the floor. Branded with the Arendal Sound logo.
THE PUCK
We have customized a new slick puck-design mounted with M6 bolts. They create extreme stability against the floor. Branded with the Arendal Sound logo.
1723 AVALANCHE 800 / 1200 IQ
The term “intelligent” is rarely used in the audio industry, especially for speakers and subwoofers. The new Avalanche 800 IQ & 1200 IQ subwoofer amplifiers are two more exceptions from Arendal Sound, when it comes to performance and technology.
1723 AVALANCHE 800 / 1200 IQ
The term “intelligent” is rarely used in the audio industry, especially for speakers and subwoofers. The new Avalanche 800 IQ & 1200 IQ subwoofer amplifiers are two more exceptions from Arendal Sound, when it comes to performance and technology.
INTELLIGENT POWERHOUSE
We introduced the 550 IQ which already has set market-leading standards. The Avalanche 800 IQ & 1200 IQ build on the 550, but have been optimized, equipped with additional features, and highly refined for our hi-end 1723 subwoofers. Impeccable performance, conservatively rated at 800/1200W, with capabilities that make the difference. Subwoofers are not the same anymore.
Avalanche 800 IQ & 1200 IQ Amplifiers
Highlights
High-resolution 2.6″ colour LCD display
Pro-level App
Smart amplifier technology
Full 800W RMS down to 10Hz for Avalanche 800 IQ
Full 1200W RMS down to 10Hz for Avalanche 1200 IQ
Advanced adjustability for perfect room response and ease of use
Extensive multi-sensors to protect and maintain signal quality
Flip Screen Feature lets you use the screen menu upside down while bending over for adjustments
Dual source assignable RCA & XLR inputs with assignable memory presets for each input
Selectable 12V trigger and auto-on functions for each input
RCA & XLR passthrough outputs
User adjustable on-time and auto-on wake-up settings
Variable phase & signal inversion
3 EQ modes for sealed subwoofers, 6 EQ modes for vented subwoofers
7-band parametric EQ
Low pass filter & slopes
Subsonic filter & slopes
Safety controls
Thanks to the new Avalanche IQ technology subwoofer amplifiers will never be the same again.
The amplifier has a built-in Bluetooth module for future App upgrades.
Intelligent Technology
The term “intelligent” is rarely used in the audio industry, especially for speakers and subwoofers. The new Avalanche 800 IQ & 1200 IQ subwoofer amplifiers are two more exceptions from Arendal Sound, when it comes to performance and technology. State-of-the-art amplifier, designed and developed from scratch to deliver performance and features you could not get before.
The Avalanche 800 IQ & 1200 IQ boast killer performance and offer features under their hoods that have never been seen in the industry before. Multiple sensors in the digital and analogue domain, from inputs to outputs, to preserve dynamics and clean bass. It has a powerful microcontroller (MCU) which, as the brain, controls and reads all data passing through the signal flow. This ensures that the signal is as unaffected as possible from its original source to the subwoofer output.
Research and development over two years, fully customized by Arendal Sound. The Avalanche 800 IQ & 1200 IQ are smart and intelligent beasts in the world of amplifiers.
FLIP SCREEN
Normally you will be bending over the subwoofer to make adjustments as the amplifier and user interface is on the back of it. You can now easily flip the screen in the menu settings, so it makes it much easier for you to make your last adjustments for the perfect sound experience without neck bending around the subwoofer.
DUAL SOURCE INPUT
This is a true gift for complex setups!
Do you combine stereo and multi-channel equipment in one system and want to use one subwoofer system for both? Yes, we got you covered! This is a unique feature only available from Arendal Sound through the intelligent amplifiers Avalanche 800 IQ & 1200 IQ. With your new subwoofer you can control which input is used by your stereo system and your AVR, so that it is connected to this one input only. You can lock the signal, whether mono or stereo, to the preferred input. There are up to 8 dual input configurations to choose from. This means you can control the inputs depending on what you are playing, and Avalanche 800 IQ & 1200 IQ manage the signal flow in both your systems.
Once you have set up your dual input settings, you also have the option of assigning a memory preset to each input, giving you a unique set of settings for your stereo system and another for your home theater system – if this is the path you want to take.
The old-school fiddling around with adapters and connecting back and forth with multiple subwoofer settings from stereo to AV and vice versa is a thing of the past. Thanks to Avalanche 800 IQ & 1200 IQ.
HI-RES LCD DISPLAY INTERFACE
The Avalanche 800 IQ & 1200 IQ amplifiers offer out-of-scale features in any price range where physical knobs wouldn’t fit on the amplifier panel, even if we wanted them to. The 2.6″ high-resolution colour display provides a clear overview of all settings of your subwoofer. With the multi-control knob and buttons with great tactile feedback, you will make any setup and adjustment a breeze.
The Avalanche 800 IQ & 1200 IQ offer market leading feature sets in the subwoofer industry.
the app
The new app for controlling your highly capable and advanced Arendal Sound 1723 Subwoofer.
RCA & XLR I/O
Avalanche 800 IQ & 1200 IQ have some aces on their hands. First, they have RCA & XLR inputs and outputs, but that’s just where it starts.
Variable Phase & Signal Inversion
Avalanche 800 IQ & 1200 IQ are equipped with both adjustable phase and signal inversion. Signal inversion inverts the signal, which means the same as 180 degrees phase, but these are “true” 180 degrees at all frequencies.
However, as with all variable phase shifts, the variable phase shifts slightly depending on the frequency. These two settings are very handy for achieving perfect alignment in a stereo system where there is no processor to delay the signal in time.
Auto on/off
Auto on is a feature that wakes up the subwoofer when you start playing material from the connected source. Most subwoofers on the market have different wake-up sensitivities, which can cause problems with some systems because you cannot change the sensitivity at the inputs.
With the Avalanche 800 IQ & 1200 IQ, we are offering you more than just one option. With the new automatic power-on function, you have the choice of several levels so that you can wake up your subwoofer at the right time for sound reproduction. Choose between low, medium and high wake-up sensitivity and you are set for seamless use of your subwoofer.
The days when you had to crank up the master volume to turn on the subwoofer are over with the new auto on feature!
Subsonic Filter and Slope
The subsonic filter is user selectable and adjustable from 12 to 31 Hz, or you can turn it off completely. The slope is also adjustable from 6 to 12 dB per octave. This feature can come in handy for adjusting the low bass level to suit your room or preferences. The amplifier has a built-in subsonic filter that is activated at 10 Hz, to protect the amplifier’s power supply.
Right on Time
To save energy, it’s important that your equipment shuts down when not in use. Avalanche 800 IQ & 1200 IQ let you decide when to enter sleep mode after use, for a period of 5 to 60 minutes in 5-minute increments.
Low Pass Filter and Slope
The low-pass filter (LPF) is selectively switched on or off and can be adjusted in steps of 1 Hz to 30–160 Hz. For the feinschmecker, the LPF slope can also be adjusted with 6/12/18/24dB filter curves to perfectly match the subwoofer to your system. Of course, you can adjust the phase in 10 degree steps and with full signal inversion (on/off).
EQ Modes & Parametric Equalizer
We offer up to 6 EQ modes to choose from. 3 EQ modes for sealed and 3 EQ modes for vented cabinets. Our 1723 vented subwoofers offer all 6 EQ modes as the ports can be plugged to operate the 1723 as sealed subwoofers. You get a flat frequency response in half space down to under 20Hz in EQ1 mode, EQ2 mode will start tapering off half an octave above the +-3dB frequency point of EQ1 and EQ 3 mode will start tapering off one octave above the +-3dB frequency point of EQ1. This is the same for vented and sealed.
Avalanche 800 IQ & 1200 IQ also has a built-in 7-band PEQ that can be tailored to suit your room. It is extremely accurate to enable a perfect integration in your room. The frequency is set at 1Hz-increments and the Q is adjustable all the way from 0.3 up to 10, so you can target sharp irregularities in your room response.
Levels & Input Gain
The Avalanche 800 IQ & 1200 IQ amplifiers are equipped with an adjustable input gain to match your source output level, as well as an adjustable master level for perfect integration in your setup. You also have the option of setting the level to reference position, which is recommended for most users with an AVR. For ease of use we have also implemented a feature that allows you to select a reference level for multiple subwoofers used together in the same setup.
3-12V Trigger
If you have hidden your subwoofer behind a sofa or inside a baffle wall and still want to have control over whether it is on or off (without using the auto on function) we offer a 3-12V trigger connection with 3.5mm jack. Avalanche 800 IQ & 1200 IQ listen to your source control and power up when your system is turned on, then power down when you turn your system off.
AVALANCHE 800 IQ & 1200 IQ TECHNOLOGY
Power amplifier
Each bridged power amplifier module has a 32-bit microcontroller (MCU) for control and monitoring purposes. This MCU communicates with the Digital Front-End.
The power amplifier module MCU utilizes 5 channels of A/D (analog to digital) conversion to monitor the following parameters in real time at a rate of 1000 samples/second:
The output voltage of amplifier A and B (the two halves of the bridged amplifier)
The power supply rails (positive and negative voltages)
The module temperature sensor
By monitoring these parameters and the over-current detector, fault conditions can be detected immediately and lead to immediate shutdown of the amplifiers.
Safety and Reliability
Certain strategies are employed to increase the safety margin and reliability: For example, the power supply rail voltages are measured before the power amplifiers are activated. If either rail voltage is outside the normal limits, the amplifiers are not activated and the power supply will be shut down. Since this is a bridged amplifier, the output voltages of both amplifiers should always be equal and opposite (A+B=0).
If a fault condition occurs in either amplifier, the MCU can detect it within 1 millisecond (1/1000 of a second, ms) and shut down the amplifiers. A typical single-ended power amplifier with an analog offset detection circuit must have a long time constant (> 100ms) in order to distinguish between DC and a low frequency signal.
Startup Logics
All of the parameter margins (limits) are part of the digital front-end firmware. They are downloaded to the amplifier module(s) at power on. In the case of any fault condition, the power amplifier MCU informs the digital front-end MCU and adds the specific fault information.
The strategy for each error type is determined by the digital front-end MCU firmware. For example, in the event of an overcurrent condition, the amplifier can be restarted with a limit on the number of restarts.
Troubleshooting
To simplify troubleshooting, the digital front-end MCU displays the error information on the LCD in case of a fault condition.
The power amplifier MCU also stores statistical information that can be used in various ways: Number of clipping events, maximum and minimum values for all monitored parameters (such as max/min rail voltages). This is crucial for the Arendal Sound engineers to understand if there are any problems or strange behaviour of the amplifier.
Self-Testing
The digital front-end can run a complete self-test of the entire system. This includes generating a test tone and measuring the amplifier output voltages and all other parameters. Any failure is displayed on the LCD screen.
ROHS, FCC and CE certified.
1723 NEW 13.8″ WOOFER
50% increase in excursion and performance with impeccable dynamics.
1723 NEW 13.8″ WOOFER
50% increase in excursion and performance with impeccable dynamics.
Redesigned masterpiece
We knew we could achieve more by investing all our focus and know-how to go beyond what’s already in the market. It’s still 13.8″. Looks about the same. But, it’s a different beast. The best we have ever made. With 50% higher excursion, better performance, and increased dynamics. The new 13.8″ world-class driver:
50% increase in excursion and performance
Improved dynamics
In layman’s terms, it has better “speed”, “attack” and “punch”
Design features
Driver Redefinition
After thorough optimization and testing using FEA, Klippel, and other methods, we refined a motor featuring multiple aluminium shorting rings with a focused field “T” pole design. The result is a linear magnetic field over a long voice coil throw, with very low inductance. The latest version of this driver has been reworked and redesigned in every conceivable way, everything has been modified to squeeze out even more output, while not only maintaining but also improving the sound quality, not insignificantly compared to the initial 1723 driver.
Increased responsiveness
Better magnetic field design with thicker aluminum shorting rings above and below the magnet gap, which improves control over inductance (and significantly reduces it) vs position and power – this significantly improves response and distortion over the older model. The symmetrical suspension consists of a heavily analyzed NBR surround and Connex spider with integrated tinsel leads. All combined to create a very high excursion with linear suspension. Again, this contributing to high output and a low-distortion, precise bass.
Hybrid Cone
Our unique hybrid cone made of long fiber pulp and fiberglass, takes advantage of the pulp’s superior stiffness to weight ratio, with the additional rigidity of fiberglass to deliver a driver of massive durability that is inherently inert and self-damping. The result is a cone that achieves optimum pistonic motion at all frequencies it is required to produce and beyond, creating deep, controlled, and hard-hitting bass.
Lack of compression = extreme dynamics
The airflow venting below the dust cap (venting holes in the cone body) and the spider (venting holes in the frame) have been added for two very important reasons:
We have improved the Airflow venting compared to the previous version by adding more vents in the bobbin body to further increase the airflow under the spider for better heat dissipation and to reduce air-rush noises even further, resulting in less distortion. Air heated by the voice coil is forced away with each stroke of the cone diaphragm. This continuous exchange of air mitigates thermal compression and significantly increases the woofer’s overall power handling capability while reducing distortion.
The airflow relieves the asymmetric compliance (suspension stiffness) and distortion due to the non-linear compression and dilution of the air typically trapped under the dust cap and spider. Typical vented pole designs are limited in their effectiveness due to the lack of airflow volume at maximum power and excursions because where a free, smooth airflow is most needed, the pole vent alone is not sufficient.
The new Arendal Sound 1723 Subwoofers utilize an ultra-high temp polyimide former with an aluminum voice coil for low mass, high motor force, and optimum thermal dissipation. The benefit of using aluminum instead of copper in this format is that the weight is significantly reduced and heat exchange is substantially increased, while the conductivity decreases only slightly compared to copper. This means that a driver with less moving mass can handle more power without the voice coil burning up. In sum, this means a driver that can handle more power and that has a better transient response.
1723 MAGNETIC METAL GRILLS
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.
1723 MAGNETIC METAL GRILLS
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 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.
In addition, we did not want plastic pins to add the grill, which will degrade the clean look of the cabinet with pin cups. Neodymium sub-surface magnets grip the metal grill with great force, preventing unwanted movement and vibration during high level playback. The grills have a rubber protection to ensure the cabinet is not damaged when you attach the grill and you will hear a nice ‘thump’ when you let them seat. Grilles on or off, our speakers look and sound great either way.
THE APP
The new app for controlling your highly capable and advanced Arendal Sound 1723 Subwoofer.
THE APP
The new app for controlling your highly capable and advanced Arendal Sound 1723 Subwoofer.
The app you need
The new app for controlling your highly capable and advanced Arendal Sound 1723 Subwoofer. With real-time settings directly transmitted to the subwoofer for instant feedback. All functionalities from the subwoofer are accessible from the app at your fingertips. New features like Grouping for complex subwoofer systems and time delays are also added.
NOW Available for download!
Real-time settings
Any settings you do on the app will be directly transmitted to the subwoofer without any delay. Make accurate and instant settings.
Tweaking your PEQ bands to match your in-room response has never been easier and more convenient.
Ease of use
The app tackles all the professional features onboard the 1723 subwoofers but with intuitive use. Easy, or complex setups. Still easy to use.
NEW grouping feature
One subwoofer might not be enough for you. We know how painful it can be to set up and organize multiple subwoofer arrangements. We are happy to introduce the new Grouping feature! This lets you set up multiple groups with multiple subwoofers to align with the group and global level settings.
Extremely simple. No more frustrating setups.
Control your inputs
Set up your RCA and XLR inputs to act independently and with different configurations. Memory banks, on-time, wake-up threshold sensitivity, and more.
These are a unique pro-feature. What was complex before, is now made easy.
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.
Professional reviews
“The subwoofer is a lot of fun, especially in terms of precision and speed.”
Their sheer solidity, together with their elegant industrial design, raises them to luxury-class products.
“High-end sound and more of a high-end experience.”
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.
The control is great, the dynamics impressive, the weight and power are actually pretty awesome, and it impresses both for its size and its price.
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.
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.
