JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 42

APPLICATION loudspeakers

or less rigid by means of total
and/or partial impregnation and
the addition of inserts with variable thicknesses. All this resulted
in a sound that is as natural as
possible at high ranges.
The speaker has a very clean
sound, with a sound depth effect that "envelops" the user in
what the specialists have called "a
sound bubble".

Grandinote Mach 9
loudspeakers carbon detail

Strong points
-	 Frequency linearity
-	 Frequency extension
-	 Reduced phase shifts in the audible range and high impulse
response
-	 Maximum precision to follow all little details of the audio signal
-	 Maximum energy transfer between the drivers and the environment

combined with fillers treated
with particular impregnating
agents were the only ones able
to reach the sound quality considered today as a very high level, with environmental winding
sensations unthinkable for most
of the speakers on the market.
In search of excellence
The development phase started with the construction of flat
panels that consisted of a simple
glass-H/C sandwich, in which
the holes for the loudspeakers

42

were enclosed. Sensors were
placed in the cabinets and a frequency and dynamic load detection was performed.
The company switched to a similar solution with carbon instead
of glass and conducted another
check for comparisons. Then,
they worked on the fibre orientation and their alternation (carbon-glass-carbon). Fillers with
different densities, thicknesses
and materials were tested; work
was done to make the fillers more

Indelible memories
These imposing free-standing
(column-type)
loudspeakers
have no less than nine full-range
loudspeakers without any form of
electronic filtering. The adjustments are made mechanically by
varying the mass applied to each
of the cones. Sixteen treble dome
speakers reproduce the highest
treble harmonics. All the speakers used thus form a line array
that makes it possible to eliminate several undesirable reflections from the room.
Thanks to an efficiency of 99 dB,
the Mach 9 presented an easy
load for the Shinai amplifier used
during the demonstration. With
a Volta streamer as the source,
this Grandinote channel literally
transported the audience to heaven. Grandinote is the top of the
line in the world of high fidelity,
and the experience of Mach 9
speakers leaves indelible memories.
This application is used exclusively for high-performance Hi-Fi
cabinets and is currently distributed worldwide.

More information:
www.cbscompositi.com

	 jec composites magazine / November 2020 / SPECIAL ISSUE Sports, Health & Leisure


http://www.cbscompositi.com/

JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020

Cover
Edito
Contents
TRENDS
Business - Sports and health: a wealth of opportunities for composites
e-Bike - Uncertainties over Chinese supply chains put pressure on electric bike producers
Opportunities - The Gaming industry asks composites players: are you ready?
PROCESSING
Characterization - Bamboo versus maple from a skateboard manufacturer’s viewpoint
Engineering lntegrated loop technology provides new high strength joints for carbon fibre composites
Additive manufacturing - Disrupting the composite tooling supply chain
Biocomposites - Changing the outdoor hardware industry
APPLICATION
Climbing - A mountain in the middle of the city
Acoustic - The sound of composite violins investigated
Loudspeakers - Best sound in the world
Jewellery - Shine bright like a composite
Travel - Carbon fibre composites give luggage a leg up
Watersports - Closed-loop recycling of epoxy composites
Running shoes - Composites make their own mark in China
Sprinting shoes - Future of sprinting: spikeless CFRTP sprinting shoe
Medical - Advanced composite materials for prosthetic sockets in developing countries
Prostheses - A new way to make prostheses and orthoses
Paralympics - ‘‘The company’s objective is to design a future full of choices”
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Cover
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 2
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Edito
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 4
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 5
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Contents
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Business - Sports and health: a wealth of opportunities for composites
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 8
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 9
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 10
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - e-Bike - Uncertainties over Chinese supply chains put pressure on electric bike producers
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 12
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 13
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Opportunities - The Gaming industry asks composites players: are you ready?
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 15
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 16
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 17
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 18
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 19
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 20
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Characterization - Bamboo versus maple from a skateboard manufacturer’s viewpoint
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 22
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Engineering lntegrated loop technology provides new high strength joints for carbon fibre composites
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 24
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 25
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 26
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Additive manufacturing - Disrupting the composite tooling supply chain
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 28
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 29
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Biocomposites - Changing the outdoor hardware industry
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 31
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Climbing - A mountain in the middle of the city
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 33
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Acoustic - The sound of composite violins investigated
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 35
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 36
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 37
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 38
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 39
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 40
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Loudspeakers - Best sound in the world
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 42
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Jewellery - Shine bright like a composite
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 44
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Travel - Carbon fibre composites give luggage a leg up
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 46
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Watersports - Closed-loop recycling of epoxy composites
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 48
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 49
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Running shoes - Composites make their own mark in China
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 51
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Sprinting shoes - Future of sprinting: spikeless CFRTP sprinting shoe
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 53
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 54
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Medical - Advanced composite materials for prosthetic sockets in developing countries
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 56
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 57
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 58
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 59
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 60
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 61
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Prostheses - A new way to make prostheses and orthoses
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 63
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - Paralympics - ‘‘The company’s objective is to design a future full of choices”
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 65
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 66
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 67
JEC COMPOSITES MAGAZINE - Special Issue Composites for Sports, Health & Leisure - November 2020 - 68
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