ARENDAL 1723 User manual

HANDBOOK
HANDBOOK

WELCOME
Thank you for purchasing an
Arendal Sound product.
We hope you enjoy it as much
as we enjoyed creating it”
- Team Arendal Sound
STORY OF ARENDAL
1723 SUBWOOFERS
PREMIUM BUILD QUALITY
AVALANCHE 800  1200 IQ AMPLIFIER
13.8” WOOFER
PLACEMENT & SETUP
HOW TO CONNECT
AMPLIFIER OPERATIONS
SAFETY INSTRUCTIONS
WARRANTY

After a two-year development period we proudly present
the new subwoofers in the 1723 Series. Improving what
were already market leading products was not an easy
task to tackle. Our statement series offers an exceptional
balance between perfect music reproduction as well as
sheer bass depth and output.
We have nailed it. It’s a promise.
Amazing performance. Dynamic, clean, earth-
shattering bass packed in a super-rigid HDF cabinet
with premium build quality and details unheard of in
this price range. No cheap vinyl or simple solutions. Hi-
End performance and build quality.
All new 1723 Series Subwoofers are utilising our
completely redesigned, groundbreaking 13.8” driver
with 50% more excursion and performance, with insane
dynamics. Yes, we’ve also succeeded in improving
the dynamics. The statement and definition of skilled
engineering and design efficiency. We consider it a
masterpiece.
A premium driver needs premium amplification.
Actually, our new Avalanche 800 IQ & 1200 IQ amplifiers
are the market statement of high-power amplifiers with
a new mindset of features and usability. The Smart
technology for subwoofers. Conservatively rated at
800W and 1200W RMS.
The flexibility in its ways of connectivity and setup will
makes every subwoofer amplifier look outdated. The
large Hi-Res colour display makes all your adjustments
a breeze and provides an excellent overview of all
the steps to optimise your Hi-End subwoofer for your
system.
1723 Series Subwoofers. Made by enthusiasts for
enthusiasts. Pro features for the Pro user.

I was born and raised in Arendal 1978, Norway. As a kid I
enjoyed many activities, such as catching fish for my cat
Johnas, riding my bike, playing football and video games,
and hanging out with friends. Of course not a day went by
without wrestling with my older brother Dan Benny.
My dad, Jan, founded an electronic store in the 70´s and it
quickly became the top selling store of it’s kind throughout
Norway. On a good Saturday it was not unusual to sell
40-50 color TV’s, which were hot tech at the time. Today
he spends his elder days as a fisherman, just like my
grandfather Olav before him.
During my younger days there was rarely a weekend when
I was not (somewhat reluctantly!) dragged out of bed on
a Saturday morning to help sell my grandfather’s catch
from the night before to the neighbourhood. I was often
told “your grandfather has caught a lot of fish, you need
to help him sell it”. Dragging all the fish with me, I walked
several kilometers and knocked on many doors utilizing
some maybe desperate sales tactics to charm the older
ladies. My customers may have felt sorry for me seeing
me walk around with fish, but I was able to sell them and
returned home with pockets full of money. My grandfather
gave me a cut of the sales so I could buy candy and save
the rest in order to purchase more audio products. These
were some of the best memories of my childhood.
As you may have guessed, I was introduced to the audio
world at a very early age. When I turned 14 I started to
work part time at my dad’s store. When your hobby is
electronics and you work in such an environment you
get the urge to purchase and test as many products as
you can, which I did with great joy. Normally, instead of a
paycheck, I brought home new speakers or amplifiers that
had to be tested. My very first setup was a stereo system
with some huge speakers which could play very loud.
It was hugely annoying to my mother. Does that sound
familiar?
It’s one thing to have fun with audio equipment, but
another very different thing to understand it. I studied
electronics for 8 years, graduated from Grimstad with an
engineering degree and was lucky enough to get a job in
the oil industry. After working in the oil industry for a
while, I knew that it wasn’t the field for me. Audio was my
passion and that’s what I wanted to work with.
With 15 years of business experience in the audio industry
and after shipping tens of thousands of audio products
throughout Europe and beyond, I wanted something else.
Something of our own which had been lingering in the air
for many years. At our 10th anniversary, what better way
to celebrate and continue the story, than with the release
of our own speaker brand?
The idea of Arendal Sound was born.
It was no coincidence. We’ve spent years researching,
listening to our customers, planning, developing,
engineering and investing in Arendal Sound. I always
wanted our team to have something to be extraordinarily
proud of and enthusiastic about. It had to be something
that was based on solid acoustic engineering principles
STORY OF ARENDAL

and yet aesthetically beautiful, surrounded by a unique
story - ours. Arendal Sound builds upon traditional and
historic Norwegian elements, where solid craftsmanship
and finish quality are a top priority, backed with pleasure
in the use and pride in the ownership. We even want to
show our beautiful country to our overseas customers and
invite them to Norway.
We areafamilyand teamwith the samementality andgoal,
to create market leading products, packed with incredible
value, backed with our highly acclaimed customer support
that extends beyond the date of purchase.
To me, business comes second and at the end of the day,
it’s my family who are most important. Without them it
would have been hard. I would especially like to thank
my wife, Heidi, as she has been by my side all this time
showing extreme patience and understanding. And of
course my two little kids, Marcus and Leander, they are
the dessert in life as my mom and dad say.
We hope you will enjoy our products as much as we
enjoyed making them.
Jan Ove Lassesen
Founder of Arendal Sound

BLACK GLOSS WHITE GLOSS BLACK SATIN WHITE SATIN

FRONT LEFT BACK RIGHT
33.5 cm
48.0 cm
45.0 cm
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.
Woofer 13.8"
Enclosure Sealed
Enclosure material High Density Fiberboard (HDF)
Amplifier Avalanche 800 IQ, 800W RMS
Power cable 2 meters
Frequency response
EQ1 18-200Hz (+/-3dB)
EQ2 25-200Hz (+/-3dB)
EQ3 36-200Hz (+/-3dB)
Included Power cable. Manual.
Dimensions without feet 48.0H x 33.5W x 45.0D cm
Dimensions with rubber cones 49.2H x 33.5W x 45.0D cm
Weight 24.5 kg
Break-in for optimal performance 50 hours
SPECIFICATIONS

BLACK GLOSS WHITE GLOSS BLACK SATIN WHITE SATIN

1723 Subwoofer 1V is a vented, high performance,
single driver subwoofer. Subwoofer 1V sets a new
standard in its class with insane performance for
bass-heavy music tracks or movies. The enclosure
can be sealed, transforming this brute from a force
of nature to a more nuanced and tighter sounding
musical performer like 1723 Subwoofer 1S. Only
bigger and more powerful. Utilising a single 13.8”
driver and our smart Avalanche 800 IQ amplifier
boasting 800W of undistorted power that offers
ample adjustability for any setup.
SPECIFICATIONS
Woofer 13.8"
Enclosure Sealed / Vented
Enclosure material High Density Fiberboard (HDF)
Amplifier Avalanche 800 IQ, 800W RMS
Power cable 2 meters
Frequency response
EQ1 sealed 18-200Hz (+/-3dB)
EQ2 sealed 25-200Hz (+/-3dB)
EQ3 sealed 33-200Hz (+/-3dB)
EQ1 vented 17-200Hz (+/-3dB)
EQ2 vented 22-200Hz (+/-3dB)
EQ3 vented 30-200Hz (+/-3dB)
Port 2.5H x 35.0W cm
Included Power cable. Manual. Port plug.
Dimensions without feet 62.5H x 45.0W x 55.0D cm
Dimensions with rubber cones 63.7H x 45.0W x 55.0D cm
Weight 48.1 kg
Break-in for optimal performance 50 hours
FRONT LEFT BACK RIGHT
45.0 cm
62.5 cm
55.0 cm

BLACK GLOSS WHITE GLOSS BLACK SATIN WHITE SATIN

Dual drivers, twice the fun. 1723 Subwoofer 2S
offers an exceptional balance between perfect music
reproduction as well as sheer bass depth and output.
Utilising two of our proprietary 13.8” drivers, driven
by our smart 1200W RMS Avalanche 1200 IQ amplifier
that offers ample adjustability for any setup. The
cabinet is sealed and made of HDF, and is sized to
provide an optimally damped system that produces
deep, undistorted musical bass with a complete lack of
smearing or coloration.
The dual opposing, force-absorbing driver layout
delivers clean, deep bass, without cabinet movement
subtracting anything from the driver output.
Literally startling dynamics. We believe this the world’s
best subwoofer for music. At any price level.
SPECIFICATIONS
FRONT LEFT BACK RIGHT
42.0 cm
53.0 cm
50.0 cm
Woofer 2 x 13.8"
Enclosure Sealed
Enclosure material High Density Fiberboard (HDF)
Amplifier Avalanche 1200 IQ, 1200W RMS
Power cable 2 meters
Frequency response
EQ1 17-200Hz (+/-3dB)
EQ2 24-200Hz (+/-3dB)
EQ3 33-200Hz (+/-3dB)
Included Power cable. Manual.
Dimensions without feet 53.0H x 42.0W x 50.0D cm
Dimensions with rubber cones 54.2H x 42.0W x 50.0D cm
Weight 41.4 kg
Break-in for optimal performance 50 hours

BLACK GLOSS WHITE GLOSS BLACK SATIN WHITE SATIN

1723 Subwoofer 2V is the Hulk among subwoofers. It’s
big. It’s ported. It may be the perfect replacement for your
old coffee table. For all purposes and intents, it is a 1723
Subwoofer 2S on steroids, with absolutely massive output.
The enclosure can be sealed, which turns this brute from a
force of nature into a more nuanced and tighter sounding
musical performer. The dual opposing, power-absorbing
driver layout delivers clean, deep bass, without cabinet
movement subtracting anything from the driver output.
Prepare for mayhem.
Utilising two of our proprietary 13.8” drivers, driven by our
smart 1200W RMS Avalanche 1200IQ amplifier that offers
ample adjustability for any setup.
Movies or music. Perfect for both.
SPECIFICATIONS
FRONT
50.0 cm
70.0 cm
LEFT BACK RIGHT
60.9 cm
Woofer 2 x 13.8"
Enclosure Sealed / vented
Enclosure material High Density Fiberboard (HDF)
Amplifier Avalanche 1200 IQ, 1200W RMS
Power cable 2 meters
Frequency response
EQ1 sealed 17-200Hz (+/-3dB)
EQ2 sealed 24-200Hz (+/-3dB)
EQ3 sealed 34-200Hz (+/-3dB)
EQ1 vented 15-200Hz (+/-3dB)
EQ2 vented 21-200Hz (+/-3dB)
EQ3 vented 28-200Hz (+/-3dB)
Port 4H x 40W cm
Included Power cable. Manual. Port plug.
Dimensions without feet 70.0H x 50.0W x 60.9D cm
Dimensions with rubber cones 71.2H x 50.0W x 60.9D cm
Weight 60.1 kg
Break-in for optimal performance 50 hours

Rock solid HDF cabinets
Higher density and naturally better damped than MDF
(Medium Density Fiberboard), using HDF (High Density
Fiberboard) results in a sonically inert cabinet. HDF was
also chosen because it can be machined much more
precisely than MDF, which is especially important for
precision critical areas like the two part HDF & Aluminum
waveguide.
Arendal Sound products are using HDF thicknesses
ranging from 18 to 50mm throughout the designs, with
critical areas like driver mounting and cabinet bases
being the thickest.
Internal bracing has been strategically placed to increase
overall cabinet strength and limit unwanted panel
vibrations that may cause audible colorations. Internal
braces are CNC routed to shape to smooth internal airflow
and minimize volume losses within the cabinet, whilst
maintaining thickness at critical assembly joints.
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 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.
PREMIUM BUILD QUALITY

Premium Finishes
All Arendal Sound 1723 speakers and subwoofers comes
in four premium finishes;
• Black Satin
• Black Gloss
• White Satin
• White Gloss
To ensure the best and long lasting quality, all Arendal
Sound speakers and Subwoofers use up to 12 layers of
paint, consisting of primers and polyurethane paint, hand
finished. We use no vinyl, anywhere.
The finish is what you would expect from Hi-End products.
No plastic - “Green sound”
Well, you may find a cable strap somewhere in plastic,
but all components in Arendal Sound which affects the
sound are built up from non-plastic parts. High grade
aluminium back plates on subwoofers and speakers. Even
our logo is in anodized aluminium.
Internal wiring
Not your average zip cord. All products utilize high count
multi-strand wire, braided together. These were not done
for looks, but chosen to produce the most consistent
impedance possible and electrical current carrying
capabilities. The benefit is very low insertion losses
without the problems of “skin effect” caused by large
diameter wires. This insures that each driver sees what
the amplifi er intended without additional colorations.
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.

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 optimised, 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.
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.
Researchanddevelopment overtwoyears,fullycustomized
by Arendal Sound. The Avalanche 800 IQ & 1200 IQ are
smart and intelligent beasts in the world of amplifiers.
AVALANCHE 800 / 1200 IQ
AMPLIFIER
MICROCONTROLLER
A/D
CONVERTER
PROGRAMMABLE
GAIN AMPLIFIER
ANALOG
INPUTS DSP D/A CONVERTER AMPLIFIER
TFT
COLOR DISPLAY
POWER SUPPLY
INPUTS
OUTPUT
RCA
LED /STATUS
AUTO TURN ON,
AUTO INPUT SELECTION
SAFETIES - OVER/UNDER
VOLTAGE, THERMAL
RED ARROWS INDICATE SIGNAL FLOW
GREY ARROWS INDICATE COMMUNICATION
INPUT LEVEL
CONTROL
SIGNAL
CONVERSION
SIGNAL
CONVERSION
SAFETIES - OVERCURRENT,
THERMAL, DC
SIGNAL PROCESSING,
EQ, LIMITERS, ETC.
XLR
DISPLAY/USER INTERFACE
MULTI CONTROL KNOB
AND BUTTONS