<s>
The	O
soft	B-Device
dome	I-Device
tweeter	I-Device
is	O
a	O
particular	O
type	O
of	O
tweeter	B-Device
invented	O
and	O
patented	O
in	O
1967	O
by	O
Bill	O
Hecht	O
,	O
a	O
renowned	O
pioneer	O
in	O
the	O
early	O
days	O
of	O
audio	O
engineering	O
and	O
the	O
founder	O
of	O
Phase	O
Technology	O
.	O
</s>
<s>
Hecht	O
states	O
that	O
he	O
was	O
confronted	O
with	O
what	O
seemed	O
a	O
mundane	O
problem	O
:	O
When	O
showing	O
speakers	O
at	O
various	O
audio	O
shows	O
,	O
onlookers	O
often	O
poked	O
at	O
the	O
two-inch	O
dome	O
tweeters	B-Device
of	O
the	O
display	O
models	O
,	O
sometimes	O
cracking	O
them	O
.	O
</s>
<s>
He	O
set	O
out	O
to	O
make	O
a	O
soft	O
,	O
mock	O
tweeter	B-Device
that	O
would	O
n't	O
crack	O
when	O
prodded	O
.	O
</s>
<s>
In	O
those	O
days	O
,	O
the	O
belief	O
was	O
that	O
only	O
a	O
rigid	O
tweeter	B-Device
was	O
capable	O
of	O
producing	O
high	O
frequencies	O
.	O
</s>
<s>
The	O
soft	O
dome	O
revolutionized	O
the	O
reproduction	O
of	O
high	O
frequency	O
sound	O
;	O
it	O
produced	O
a	O
smoother	O
frequency	O
response	O
,	O
wider	O
dispersion	O
to	O
higher	O
frequencies	O
,	O
and	O
had	O
almost	O
no	O
high	O
frequency	O
resonances	O
,	O
all	O
with	O
much	O
lower	O
distortion	O
than	O
conventional	O
tweeters	B-Device
up	O
to	O
that	O
point	O
.	O
</s>
<s>
After	O
it	O
was	O
patented	O
,	O
the	O
soft	B-Device
dome	I-Device
tweeter	I-Device
became	O
an	O
industry	O
standard	O
and	O
was	O
licensed	O
almost	O
immediately	O
by	O
all	O
major	O
audio	O
companies	O
in	O
the	O
world	O
including	O
Philips	O
,	O
Peerless	O
,	O
McIntosh	O
,	O
Sony	O
,	O
JVC	O
,	O
Yamaha	O
,	O
Pioneer	O
,	O
Kenwood	O
,	O
Shure	O
and	O
many	O
more	O
.	O
</s>
