<s>
Sony	B-Algorithm
MDR-V6	I-Algorithm
is	O
a	O
large	O
diaphragm	O
folding	O
pair	B-Device
of	I-Device
headphones	I-Device
,	O
the	O
initial	O
entry	O
in	O
Sony	O
's	O
Studio	O
Monitor	O
headphones	B-Device
,	O
one	O
of	O
the	O
most	O
popular	O
model	O
lines	O
among	O
professional	O
audio	O
engineers	O
.	O
</s>
<s>
The	O
product	O
line	O
was	O
augmented	O
by	O
the	O
MDR-V600	B-Algorithm
,	O
the	O
MDR-7506	B-Algorithm
and	O
then	O
the	O
MDR-7509	B-Algorithm
and	O
MDR-7509HD	B-Algorithm
models	O
,	O
which	O
continue	O
to	O
be	O
popular	O
for	O
audio	O
editing	O
,	O
live	O
sound	O
and	O
broadcast	O
applications	O
.	O
</s>
<s>
The	O
four	O
models	O
use	O
a	O
closed	O
,	O
circumaural	O
sealed-ear	O
design	O
with	O
a	O
coiled	O
oxygen-free	O
copper	O
cord	O
,	O
tipped	O
with	O
a	O
combination	O
¼″	O
(	O
6.35mm	O
)	O
and	O
⅛″	O
mini	O
(	O
3.5mm	O
)	O
TRS	B-Device
phone	I-Device
connector	I-Device
.	O
</s>
<s>
As	O
a	O
product	O
line	O
,	O
the	O
MDR-series	O
Studio	O
Monitor	O
folding	O
headphones	B-Device
have	O
been	O
noted	O
as	O
a	O
"	O
favorite	O
of	O
sound	O
professionals	O
because	O
they	O
're	O
reasonably	O
flat	O
sounding	O
,	O
inexpensive	O
,	O
compact	O
,	O
and	O
they	O
can	O
take	O
a	O
lot	O
of	O
punishment.	O
"	O
</s>
<s>
The	O
MDR-V6	B-Algorithm
was	O
introduced	O
in	O
1985	O
and	O
became	O
popular	O
with	O
sound	O
engineers	O
and	O
disc	O
jockeys	O
(	O
DJs	O
)	O
.	O
</s>
<s>
The	O
headphones	B-Device
were	O
listed	O
as	O
having	O
a	O
very	O
wide	O
frequency	O
response	O
and	O
were	O
convenient	O
for	O
travel	O
as	O
they	O
could	O
be	O
folded	O
and	O
carried	O
in	O
an	O
included	O
leatherette	O
bag	O
.	O
</s>
<s>
Recently	O
I	O
auditioned	O
a	O
pair	O
of	O
Sony	B-Algorithm
MDR-V6	I-Algorithm
Studio	O
Monitor	O
headphones	B-Device
,	O
then	O
purchased	O
them	O
.	O
</s>
<s>
There	O
are	O
not	O
enough	O
superlatives	O
in	O
the	O
dictionary	O
to	O
describe	O
the	O
performance	O
of	O
these	O
headphones	B-Device
.	O
</s>
<s>
Consumer	O
Reports	O
wrote	O
in	O
1989	O
that	O
"	O
there	O
seems	O
little	O
reason	O
to	O
look	O
beyond	O
the	O
check-rated	O
Sony	B-Algorithm
MDR-V6	I-Algorithm
.	O
</s>
<s>
That	O
model	O
combines	O
the	O
highest	O
accuracy	O
we	O
've	O
measured	O
in	O
headphones	B-Device
,	O
comfortable	O
design	O
,	O
moderate	O
weight	O
,	O
and	O
enviable	O
bass	O
reproduction.	O
"	O
</s>
<s>
In	O
1993	O
,	O
the	O
headphones	B-Device
were	O
described	O
as	O
"	O
almost-industry-standard	O
"	O
for	O
the	O
monitoring	O
of	O
location	O
sound	O
recording	O
for	O
film	O
and	O
television	O
.	O
</s>
<s>
Newer	O
designs	O
were	O
introduced	O
by	O
Sony	O
,	O
most	O
notably	O
,	O
the	O
Sony	B-Algorithm
MDR-7506	I-Algorithm
and	O
MDR-V600	B-Algorithm
,	O
yet	O
the	O
MDR-V6	B-Algorithm
continued	O
to	O
be	O
produced	O
.	O
</s>
<s>
By	O
2003	O
,	O
the	O
headphones	B-Device
were	O
so	O
well	O
known	O
that	O
Electronic	O
Musician	O
magazine	O
,	O
recommending	O
headphones	B-Device
with	O
a	O
"	O
fold-up	O
design	O
"	O
,	O
called	O
the	O
MDR-V6	B-Algorithm
"	O
venerable	O
"	O
.	O
</s>
<s>
In	O
a	O
comparison	O
of	O
many	O
headphones	B-Device
models	O
,	O
Dave	O
Rat	O
introduced	O
them	O
as	O
"	O
one	O
of	O
the	O
most	O
popular	O
live	O
sound	O
headphones	B-Device
"	O
,	O
and	O
tested	O
them	O
to	O
be	O
"	O
a	O
little	O
low	O
on	O
the	O
top	O
end	O
,	O
a	O
little	O
low	O
on	O
the	O
bottom	O
;	O
definitely	O
close	O
"	O
to	O
neutrally	O
flat	O
.	O
</s>
<s>
First	O
reviewed	O
in	O
1993	O
,	O
the	O
MDR-V600	B-Algorithm
was	O
designed	O
to	O
satisfy	O
DJs	O
who	O
wanted	O
a	O
greater	O
emphasis	O
on	O
bass	O
.	O
</s>
<s>
To	O
help	O
DJs	O
in	O
cuing	O
songs	O
with	O
one	O
ear	O
,	O
the	O
MDR-V600	B-Algorithm
'	O
s	O
earcups	O
can	O
be	O
swiveled	O
around	O
backwards	O
.	O
</s>
<s>
In	O
a	O
test	O
of	O
virtual	O
surround	O
on	O
a	O
portable	O
DVD	O
player	O
,	O
using	O
the	O
movie	O
House	O
of	O
Flying	O
Daggers	O
,	O
the	O
MDR-V600	B-Algorithm
was	O
praised	O
:	O
"	O
the	O
imaging	O
,	O
separation	O
,	O
and	O
clarity	O
of	O
sound	O
was	O
impressive	O
"	O
.	O
</s>
<s>
In	O
1991	O
,	O
Sony	O
introduced	O
the	O
MDR-7506	B-Algorithm
headphones	B-Device
,	O
which	O
were	O
marketed	O
to	O
audio	O
professionals	O
.	O
</s>
<s>
The	O
MDR-7506	B-Algorithm
and	O
the	O
MDR-V6	B-Algorithm
share	O
the	O
same	O
part	O
number	O
for	O
their	O
driver	O
,	O
but	O
the	O
magnet	O
therein	O
is	O
known	O
to	O
vary	O
.	O
</s>
<s>
The	O
MDR-7506	B-Algorithm
was	O
introduced	O
with	O
a	O
samarium	O
–	O
cobalt	O
magnet	O
,	O
as	O
was	O
originally	O
used	O
in	O
the	O
MDR-V6	B-Algorithm
.	O
</s>
<s>
However	O
,	O
at	O
some	O
point	O
,	O
the	O
MDR-7506	B-Algorithm
switched	O
to	O
the	O
slightly	O
more	O
powerful	O
neodymium	O
magnet	O
.	O
</s>
<s>
In	O
addition	O
,	O
Sony	O
's	O
own	O
store	O
website	O
specifications	O
for	O
the	O
MDR-V6	B-Algorithm
also	O
list	O
a	O
neodymium	O
magnet	O
,	O
further	O
calling	O
into	O
question	O
whether	O
the	O
MDR-V6	B-Algorithm
and	O
MDR-7506	B-Algorithm
actually	O
use	O
different	O
magnet	O
types	O
in	O
their	O
drivers	O
.	O
</s>
<s>
In	O
1997	O
,	O
EQ	O
magazine	O
wrote	O
,	O
"	O
Most	O
people	O
will	O
use	O
Sony	B-Algorithm
MDR-V6	I-Algorithm
or	O
similar	O
headphones	B-Device
,	O
such	O
as	O
the	O
professional	O
version	O
Sony	B-Algorithm
MDR-7506	I-Algorithm
or	O
Koss	O
Pro-4A	O
.	O
</s>
<s>
These	O
Sony	O
headphones	B-Device
have	O
a	O
reputation	O
for	O
loud	O
sound	O
and	O
for	O
blocking	O
out	O
at	O
least	O
some	O
outside	O
noise.	O
"	O
</s>
<s>
A	O
2001	O
book	O
about	O
web	O
audio	O
described	O
the	O
MDR-7506	B-Algorithm
as	O
"	O
the	O
industry	O
favorite	O
"	O
.	O
</s>
<s>
On	O
March	O
7	O
,	O
2014	O
,	O
CNET	O
reviewed	O
both	O
headphones	B-Device
.	O
</s>
<s>
The	O
7506	B-Algorithm
accentuated	O
its	O
treble	O
range	O
,	O
and	O
had	O
less	O
bass	O
than	O
the	O
V6	O
.	O
</s>
<s>
In	O
Sony	O
's	O
pro	O
line	O
,	O
the	O
now	O
discontinued	O
MDR-7509HD	B-Algorithm
used	O
a	O
larger	O
driver	O
.	O
</s>
<s>
Truesdell	O
included	O
the	O
MDR-7509HD	B-Algorithm
in	O
his	O
list	O
of	O
"	O
top-of-the-line	O
"	O
headphones	B-Device
for	O
digital	O
audio	O
production	O
,	O
under	O
other	O
models	O
by	O
Bose	O
and	O
Beyerdynamic	O
.	O
</s>
<s>
In	O
2008	O
,	O
The	O
Sound	O
Effects	O
Bible	O
listed	O
the	O
earlier	O
MDR-7506	B-Algorithm
as	O
essential	O
for	O
the	O
"	O
standard	O
recording	O
package	O
"	O
,	O
and	O
the	O
MDR-7509HD	B-Algorithm
best	O
suited	O
to	O
the	O
"	O
professional	O
recording	O
package	O
"	O
,	O
calling	O
them	O
"	O
top-of-the-line	O
Sony	O
High	O
Definition	O
headphones	B-Device
"	O
.	O
</s>
