<s>
Horn	B-Device
Massive	I-Device
is	O
a	O
2.25-ton	O
(	O
4,500	O
lbs	O
)	O
3.5	O
x	O
3.1	O
x	O
4	O
m	O
mobile	O
2,000	O
-watt	O
steel	O
and	O
aluminum	O
horn	B-Device
sound	I-Device
system	I-Device
powered	O
by	O
a	O
commercial	O
12-inch	O
speaker	O
driver	O
.	O
</s>
<s>
It	O
functions	O
as	O
a	O
mobile	O
audio	B-Operating_System
input	I-Operating_System
station	I-Operating_System
to	O
project	O
audio	O
content	O
a	O
distance	O
of	O
one	O
kilometre	O
.	O
</s>
<s>
Horn	B-Device
Massive	I-Device
is	O
a	O
monophonic	O
sound	O
projector	O
designed	O
and	O
built	O
by	O
artist	O
Matt	O
Hope	O
.	O
</s>
<s>
The	O
core	O
design	O
of	O
Horn	B-Device
Massive	I-Device
is	O
that	O
it	O
is	O
the	O
largest	O
horn	B-Device
which	O
can	O
be	O
transported	O
by	O
a	O
conventional	O
truck	O
.	O
</s>
<s>
The	O
design	O
process	O
took	O
six	O
months	O
,	O
most	O
of	O
that	O
time	O
spent	O
calculating	O
the	O
steel	O
cutting	O
specifications	B-Application
needed	O
for	O
fabrication	O
.	O
</s>
<s>
Horn	B-Device
Massive	I-Device
was	O
designed	O
using	O
the	O
software	B-Application
tools	I-Application
AutoCAD	B-Algorithm
,	O
Bass	O
Box	O
Pro	O
,	O
Rhino	O
3D	O
,	O
3D	O
studio	O
Max	O
and	O
Horn	B-Device
Calc	O
.	O
</s>
<s>
Horn	B-Device
Massive	I-Device
was	O
built	O
at	O
Visual	O
Arts	O
fabrication	O
machine	O
shop	O
at	O
the	O
University	O
of	O
California	O
,	O
San	O
Diego	O
.	O
</s>
<s>
The	O
construction	O
of	O
Horn	B-Device
Massive	I-Device
required	O
an	O
extensive	O
set	O
of	O
tools	O
and	O
machinery	O
.	O
</s>
<s>
Horn	B-Device
Massive	I-Device
was	O
built	O
with	O
help	O
from	O
the	O
Scripps	O
marine	O
science	O
development	O
shop	O
in	O
La	O
Jolla	O
,	O
California	O
.	O
</s>
<s>
The	O
elements	O
of	O
Horn	B-Device
Massive	I-Device
,	O
primarily	O
made	O
of	O
mild	O
steel	O
,	O
include	O
the	O
horn	B-Device
,	O
frame	O
,	O
chassis/platform	O
and	O
lifting	O
rig	O
.	O
</s>
<s>
Horn	B-Device
Massive	I-Device
cost	O
approximately	O
$	O
8,000	O
in	O
materials	O
and	O
components	O
.	O
</s>
<s>
Horn	B-Device
Massive	I-Device
has	O
been	O
discussed	O
in	O
RES	O
magazine	O
,	O
Art	O
net	O
,	O
Art	O
forum	O
,	O
Re-up	O
,	O
and	O
Xtra	O
.	O
</s>
