THX ARENDAL, Handbook

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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 airfl ow
and minimize volume losses within the cabinet, whilst
maintaining thickness at critical assembly joints.
The fi nal detail for 1723 Tower, Monitor and Center, is to
apply a butyl based differential mass damping layer to the
inner faces of the cabinet, just to be sure we have damped
out every last resonance in the large enclosures. Butyl
is not added for 1723 S speakers as these have smaller
enclosures and did not give any differences in testbench
measuring or audible differences.
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 fl owing, 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 comes in four premium
fi nishes;
• Black Satin
• Black Gloss
• White Satin
• White Gloss
To ensure the best and long lasting quality, all Arendal
Sound speakers use up to 12 layers of paint, consisting of
primers and polyurethane paint, hand fi nished. We use no
vinyl, anywhere.
The fi nish is what you would expect from Hi-End products.
No plastic - “Green sound”
Well, you may fi nd 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 benefi t 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.
Rubber feet
All subwoofers comes with rigid rubber feet (M6 threads)
which have a strong grip on the fl oor. You will not have a
subwoofer walking around, even if that is impossible due
to the sheer mass of our HDF cabinets which are “super
quiet”. Put your hand on our speakers whilst they are
playing and you will feel, very, very little.