| The
Talon
&
The Roc |
| Many
Are
Called
But Few
Are
Chosen |
| Clement
Perry |
| 4
October
2000 |
Specifications
Talon
Khorus:
Bandwidth
(-3dB): 17Hz
—35kHz
Impedance: 6.5
Ohms 8 Ohms
nominal
Continuous
power
handling: 1000
watts
Transient
Power: 3000
watts RMS
Sensitivity (1
watt, 1 meter)
90.5 dB
Input 100
watts @ 110 dB
continuous
output (1
meter)
Reactance:
Linear,
non-reactive
impedance
Price: $14,000
Talon
Roc:
Height:
22.5"
Width:
15.0"
Depth:
18.75"
(19.75"
w/ binding
post)
Shape:
Rectangle
Weight: 93
lbs.
Price:
$4,000
Features:
Powered by
350-watt
amplifier
Volume control
Frequency
cutoff control
Phase
inversion
Talon
Audio
Technologies,
Inc.
13688 S.
Vestry Road
Draper, UT
84020
Tel:
801-619-9000
Fax:
801-619-9001
Direct sales
or pricing:
email: sales@talonaudio.com
Web: www.talonaudio.com
If
you've been
following
these pages
you've seen
some
enthusiastic
reviews of
reference-quality
loudspeakers,
e.g., the
excellent
Wilson Audio
WATT / Puppy
Sixes (Mike
Silverton),
the excellent
Piega P-12's
(Lou Lanese),
and the
excellent
Super Eclipse
(yours truly).
Each of these
loudspeaker
systems
represents
their
designers'
ultimate
statement.
Mike Silverton
and Lou Lanese
purchased
their review
pair. I,
however, did
not. As good
as the Super
Eclipse is,
and it is
indeed very
musical, it
did not beat
out the VR6's
with respect
to overall
musicality,
visceral
impact, and
dynamics. I
ultimately
returned the
review pair
and wondered
whether
anything would
ever unseat
the VR6's as
my reference.
Patience is
a virtue! That
day has
arrived! Enter
the Talon
Audio Khorus.
Built
in Utah, the
Talon Audio
Khorus's
design
philosophy
(I'm informed)
is that of the
infinite
slope. The
Khorus is
shaped like an
obelisk,
which,
according to
the
manufacturer,
naturally
time-aligns
the enclosure,
placing the
tweeter
slightly
behind the
midrange. The
speaker's
height is
46" with
a width of
8" at its
flat top. The
base widens to
18 inches.
Removing its
grill permits
a view of
cloth-treated
baffle and
driver
configuration.
All three of
the Khorus
drivers stand
about 24"
from the
floor, closely
aligned near
the top of the
enclosure. We
begin with a
highly
modified pair
of 10"
midrange/woofer
drivers
working in
unison to
cancel out
exaggerated
cone movement.
These dual
drivers are
said to
accurately
reproduce
without strain
all
frequencies
from 17Hz to
2200Hz. The
method of this
— let's call
it madness —
designer
Tierry Budge
explains:
"Midrange-based
suspensions
and
cone-geometries
can be mated
to
subwoofer-like
motor
structures and
moving masses,
if
the
resultant
dynamic
response
displays
proper
execution of
progressive
damping
principles. We
designed the
10"
driver we use
in the Khorus
with these
midrange/woofer
traits, along
with the
widest range
of
musically-conducive
capabilities."
Six
inches above
the
mid/woofer,
looking more
like a
midrange
driver, sits a
1½"
cloth-dome
tweeter
handling all
frequencies
from 2200Hz
before rolling
off at 13kHz.
Picking up on
this
high-frequency
frolic, its
duties
extending to
35kHz, is a
1"
titanium super
tweeter said
to free up the
compound
tweeter,
permitting it
a more
effortless
extension.
Dual tweeters
working in
such close
unison yield
its 2.5
designation
A
first order,
6dB slope is
the outcome,
since the goal
has always
been transient
purity.
Normally,
first-order
designs are
power hungry,
but the
Talon's
inversion
circuit allows
great power
handling as
the
first-order
slopes keep
transient
purity intact.
The rear
sports what
looks like a
port but is
actually what
Tierry calls a
"laminar
flow
valve,"
not so much an
exhaust pipe
as a pressure
release valve.
(I go deeper
into this in
the interview
portion
following this
review.)
Before
getting ahead
of myself, let
me first
explain how I
came across
the Khorus.
The story
begins with an
excited email
from Delve
Audio's Oliver
Solomon:
"Yo, P,
you better get
set to sell
your speakers
and buy these
new speakers I
just heard by
a new company
called Talon.
Man, it's the
finest speaker
I've ever
heard."
Now, don't get
me wrong, I'm
the coolest of
dudes. Stuff
like this
rarely rattles
me. I hear
wild claims
all the time,
especially
from dealers.
Yet I felt I'd
been dissed
because Oliver
had listened
to my system
for a couple
of hours only
days before.
Dissed, yes,
but my
curiosity was
nevertheless
aroused. I
visited the
website. Much
to my
amazement, I
saw
specifications
that read like
the back pages
of Mad
Magazine:
"100
times quieter
and 20 times
faster than
any
loudspeaker!"
Oliver, I now
believed, is
definitely off
his meds. But,
as I say, my
attention was
engaged. There
I was again
doing the
Absorbine Jr.
thing, taking
it all in. I
soon got in
touch with
national sales
manager Mike
Farnsworth and
requested a
review pair.
We're
talking so far
about what
Oliver says he
heard and what
the website
claims. I
envision a
dream
loudspeaker
encompassing
the clear,
see-through
quality of the
finest
electrostatics,
as in the
Crosby-modified
Quad I heard
at HiFi '97 in
San Francisco.
For the very
best top end
extension, the
very finest
and most
delicate
treble, let's
have the
five-foot
ribbon tweeter
in the large
Magnaplaners I
once owned.
This dream
transducer
should also be
capable of the
midrange body
and ultra
quick bass
response of my
beloved VR6's,
along with the
enormous stage
width, depth
and
spaciousness
I've always
come to admire
in the Avalon
and Audio
Physics. And
finally, the
dream
transducer
should
disappear
against a
velvety black
backdrop and
be absolutely
free of
compression
like the Near
Field Pipe
Dreams. Yes,
all of this.
No compromise!
I've
spent three
months with
the Talon
Khorus. Let's
not mince
words. I truly
believe Tierry
Budge has
produced a
near-perfect
loudspeaker,
and I'm saying
"near"
mostly to
cover my butt.
After long and
interesting
chats with
Tierry and my
sidekick, Stu
McCreary, I've
come to two
conclusions:
one, how very
serious and
experienced a
speaker
designer has
to be in order
to succeed,
and two, how
difficult a
struggle it
must have been
to come up
with the likes
of the Talon
Khorus. I'm
convinced it's
the best
speaker I've
ever heard.
Let's
backtrack. The
Khorus arrived
in impossibly
large shipping
crates
weighing 150
lbs. each,
necessitating
the help of my
buddy Terry
Smoak to get
them up to my
third-floor
inner sanctum.
Unpacking was
relatively
easy. Let's
get
appearances
out of the way
before we get
down to the
serious stuff:
my review pair
came in an
appealing,
high-gloss
dark Rosewood
finish. We set
up them up in
about the same
spot — about
four feet out
and three feet
from the
sidewalls —
where my
long-time
reference Von
Schweikert
VR-6's stood.
Apart from
bi-wiring
capabilities,
the Khorus
employs a
unique locking
screw-on
speaker
terminal
located
underneath its
belly.
The
Khoruses
connect to my
usual array:
Sony's SCD-1
DSD player
feeding the
Tact 2.2
Digital Room
Corrector/preamplifier.
The newest
addition to
the system is
the Ortho
Spectrum
AR2000which a
number of us
here reviewed
with
enthusiasm.
Amplifiers,
the stunningly
good Bel Canto
Evos (I'm
running a pair
in mono
configuration
for the added
support we all
need and
love). Cabling
is Walter
Fields NBS
Monitor One
and Robert
Lee's new and
remarkable
Acoustic Zen
cables. Power
cords are the
highly
addictive
Power Chords
by Audience,
Inc. The Sony
and Bel Canto
rest on the
Sistrum
Isolation
platforms;
both the Tact
and AR-2000
occupy
Rosinante's
Dark Matter
Isolation
devices. Seven
Richard Gray
400-S line
conditioners
monitor the
power going to
the
amplifiers,
while the
front end
benefits from
the PS Audio
P-300 Power
Plant and
Quantum
Symphonies.
Setup
The
Khoruses are
highly
critical of
location. I
have them toed
in about 30
degrees, where
you just
barely seeing
their sides.
My listening
position is
relatively
close, about 7
feet from the
speakers about
9 feet apart,
which some
listeners
think too much
for their
tastes. I
disagree. The
VR6's have
such wide
dispersion
that they
perform well
this far
apart. It was
immediately
apparent that
the Khoruses
could do this
too, though, I
must admit,
not to the
degree that
the VR6's
succeed off
axis, with the
listener in a
standing or
sitting
position.
After many
hours of
extensive
evaluation and
nit picking,
this is the
only
distraction I
found.
Oh
yes, there is
one more tiny
little thingie
— break-in!
It's insane!
These speakers
won't sound
anything like
what they're
capable of
until you've
put in at
least 400
hard-hitting
hours. No, I'm
not joking.
Never mind the
Olympics —
this, for me,
is Guinness
Book of
Records stuff!
Stu
McCreary has
the Khorus and
he comments
too. We both
agree that the
burn-in should
be done
patiently or
else you
suffer from
what I like to
call
"decompression."
I find
attempting to
adjust to the
Khorus' too
fast is akin
to what
deep-sea
divers
describe as
the bends, a
painful and
dangerous
condition.
Equally, long
term exposure
to sizzle,
hash, pop and
boom can prove
inadequate—when
done away
with.
Just
as my view of
audio has been
irrevocably
altered by the
experience of
the Bel Canto
Evo amplifiers
doing their
imitation of a
fine
single-ended,
class A triode
amp with bass
handling
capabilities
like the
finest
solid-state,
so have my
views been
changed by the
Talon Khorus.
More often
than not,
analytical
listening
sessions
turned into
pure listening
pleasure. The
Khorus
provided utter
clarity and
sense of ease
and
resolution,
regardless of
volume. It's a
dynamic
loudspeaker
that, by
purposeful
design, or
some form of
voodoo, does
not sound like
a dynamic
loudspeaker.
It comes lots
closer to
mimicking the
speed,
transparency
and linear
smoothness of
a hugely
efficient
electrostatic
driven by
1000-watt
single ended
triodes!
We
all know the
effects of
turning up the
volume. Some
loudspeakers
rely on high
levels to
achieve
claimed
performance. I
believe that
the Khorus
also enjoys
being played
at loud
levels, but
that doesn't
mean it won't
outperform the
field when
played low.
Unlike many a
speaker system
I've heard at
low level, the
Khorus doesn't
lose its
signature.
When played
loud, things
get only
clearer, more
dynamic and
musically
expressive. I
have never
before
witnessed such
an analytical
transducer
sounding this
musical.
The
benefits of an
absence of
noise are
enormous,
especially
when it comes
to
instrumental
truth and
tonality. Bass
is quicker and
ever so
delicate,
contributing
to a much
greater
perception of
individual
instruments
and their
location
relative to
the
microphones
and each
other.
Amazingly, the
Khorus' brings
new definition
to tympani,
drum and
kick-bass
transients.
Attack,
presence and
sense of
location never
sounded this
good. I gain a
better
awareness of a
recording's
venue. Images
stand out in
stark relief
in a deep
space of
blackness.
I've never
experienced
this level of
silence, even
when playing
in the middle
of a hot and
sunny
afternoon,
which we all
know is
hazardous to
good sound
regardless of
A/C
conditioners.
By
comparison to
the Khorus,
every speaker
I've reviewed
compresses
dynamic range.
None, not even
the VR6's,
come within a
country mile
of reaching
down into the
quietest of
musical
passages of
many CD's. I
entered Miles
Davis's
incredibly
musical
phrasings,
squeaking
chair and all,
on "Old
Folks"
from Someday
My Prince Will
Come
(Columbia
CK40947) as
never before.
Here, on this
somber and
slowly
rhythmic
recording, I
can, for the
very first
time, feel
Miles'
loneliness. I
can actually
see him
sitting,
alone,
desolate,
blowing into
his muted
horn. These
images, prior
to the Khorus,
escaped me.
And to think I
thought I knew
that disc! My
notes after
this
experience
read only:
Amen
On
the very same
disc is one of
my favorite
minor modals,
"Teo."
Miles, once
again, making
use of choked
notes, sets
the stage for
John Coltrane
who proceeds
to blow an
emotion-packed
solo, that to
this day is
still argued
among jazz
aficionados as
being his
finest. What
makes this so
different
sounding
through the
Khorus is
Wynton Kelly's
performance on
piano. It is
alleviated of
what I can
only describe
as haze. I
listened in
disbelief. I'm
accustomed to
his piano, as
well as most
other
pianists,
being usually
diminished in
both presence,
truth of
harmonic
overtones, and
timbre, making
Wynton's
performance
seem apart
from the main
events. No
longer.
Let's
call this the
domino effect.
Consider: once
Wynton's freed
up, he sets up
greater
soundstage
linearity for
'Trane, who
sounds now as
if he's coming
from behind
the left
speaker,
deeper in the
corner instead
of between the
speakers. This
positions
Miles dead
center, tight
and neatly
focused,
against that
deep-space
blackness. The
Khorus is not
doctoring any
of these
recordings,
making them
sound better
by emphasizing
or
de-emphasizing
frequency
regions. The
speaker's
accuracy in
retrieval of
detail is
without peer.
What I hear is
a superior
recreation of
what is on the
disc — not
crossover and
phase
anomalies
occurring at
the speakers.
Excellent
DSD
recordings,
driven through
the Sony SCD-1
proved a
perfect match.
The Khorus'
responds like
a
high-resolution
microscope,
clean through
the electrons,
right to the
original
venue, once
again
demonstrating
to this
audiophile
that the
Khorus stands
above the
competition
and beyond
criticism.
Enter
the Roc…
More
Will Be
Revealed
So
colossal that
its wings
could eclipse
the sun, so
strong that it
could carry
off elephants,
the Roc was
the mythical
Arabian bird
in whose
talons Sinbad
of 'The
Thousand and
One Nights'
was carried
off to a
mountaintop.
What an
appropriate
name for this
super-duper
subwoofer! The
Talon Roc has
not only lived
up to its
handle, it
meshes with
the Talon
Khorus so
musically, so
seamlessly,
that its very
qualities are
bound to
become
legendary.
The
Talon website
states that
"the Roc
uses a 12-inch
woofer to
deliver deep,
tight,
accurate bass
without ever
bottoming out.
The Roc will
only deliver
the
fundamentals
and not the
second
harmonics
(boomy
bass)."
Let it be
known the Roc
uses dual
12-inch
woofers in the
same fashion
as the Khorus.
Employed
solely in
conjunction
with the
Khorus, the
Roc takes this
already
incredible
loudspeaker to
yet another
level! I first
placed this
quite a large
box in between
the
loudspeakers
directly in
front of me.
That worked
well enough,
but my hunch
was that this
wasn't the
ideal
position. It
took up too
much floor
space where it
was, and more
importantly,
the Roc needs
to breathe.
This meant
finding a
place off to
the side where
it could
dispense its
low-end
frequencies
more evenly
into the room.
Placing it
about six feet
to the side of
the left
Khorus
provided a
better result.
In
this position,
and leaving
the phase in
the normal
position, the
total
performance
became easily
the most
natural
sounding I've
heard. In
addition, when
you stuff the
laminar valve
on the Khorus,
you increase
its impedance,
which
naturally
begins to
roll-off their
low-end
delivery
beginning at
about 80Hz. I
repeat, merely
stuffing the
laminar
"port"
does this
naturally.
Setting the
Roc's
crossover to
60Hz results
in a perfectly
matched
low-end.
Moreover,
I didn't need
the Roc for
greater
low-end
authority. The
Khorus
provides this
better than
any speaker
I've had in my
listening
room. What
proved a
revelation was
that by adding
the Roc I
immediately
alleviated two
sources of
distortion:
intermodulation,
caused by the
drivers' rapid
movement, and
harmonic,
caused by
overtaxing the
power
requirements
placed on the
amplifiers.
The Roc
therefore
contributes to
better
sensitivity,
dynamic range,
stereo focus,
transient
attack, decay,
dynamics and
definition
throughout the
frequency
range. I take
it that you
think I'm
hugely
impressed by
the Roc. You
got that
right!
Conclusion
The
Khorus plays
louder, goes
deeper, is
significantly
quieter, and
produces
greater yet
subtler
dynamics. It
provides a
greater sense
of ease than
my reference
VR6's. The
sense of
soundstage
scale, height
and depth are
state-of-art.
The Khorus/Roc
combination
combine to
create the
highest degree
of musicality
I've yet heard
from a speaker
system. In
other words
and to repeat
myself, state-of-the-art!
I
guess I don't
need to add
that I
purchased them
as my new
reference
standard.
At
a combined
price of
$18,000, the
Khorus/Roc is
a steal for
the audiophile
considering
buying a
world-class
speaker at
any price!
For me, their
arrival
couldn't have
come at a
better time.
My wisest
purchase,
absolutely!
Clement
Perry
Interviews
Tierry Budge
CP:
Tierry, you
seem like
quite the
experienced
type. How long
have you been
an audiophile
and what made
you want to
become a
speaker
designer?
TB:
I was
introduced to
High End in
1973 when I
heard a
Kenwood
marble-bass
turntable, and
Crown
separates
driving AR3
speakers. I
was struck by
2 things (that
sent me on my
"quest"):
1) I was
pleased to
hear that I
could get more
than I thought
possible out
of a stereo (I
had been
devouring
everything
that I could—reading—about
stereo since
1967), and 2)
I was even
more
disappointed
that it was
still that far
away from the
absolute.
From
1973-1986, I
heard a number
of systems
that seemed to
do various
things quite
well. I won't
list them all,
but suffice it
to say that
they all did
things that
led me to
believe that
if a system
did something
really well,
it did
something else
very poorly—it
was all
trade-offs...no
clear-cut
"winners."
The one system
that seemed to
come the
closest was
one that I
heard in 1984,
I think. ARC
SP10 and a
D250 Mk II (I
believe),
driving some
heavily
modified
Quads. The
system also
used a pair of
Entec
subwoofers
which must
have been
judiciously
and carefully
integrated
because I've
never heard
them (since)
sound anywhere
near as good.
It was tonally
balanced quite
well, evenly
dynamic (if a
bit
foreshortened),
detailed, and
seemed
comfortable
with most any
kind of music.
(I've heard
the WAMM's
sound better
on a number of
different
pieces and
styles, but
never so
evenly footed
as this system
was.) This was
also, perhaps,
the most
transparent
system that I
ever heard,
BUT, even the
images had the
see-through
quality that
the soundstage
did. It was a
fun
experience,
but a bit
disconcerting
as well. I've
heard
Meridians
(late 70's),
Celestions,
Linns,
Wilsons, and
even some
Yamaha
NS1000's do a
few things
musically
right, but
always at the
expense of
other musical
virtues. As
each
"reference"
system did
certain things
well, I
started to
make a mental
checklist of
just what
those things
were. I found
various
musical
strengths in
specific
products;
However, I
realized that
there were a
few
"virtues"
that I had
never heard
out of any
speakers: 1)
real-world
dynamics
(large AND
small scale),
2) the sense
of energy or
"vibrance"
of the real
thing, and 3)
timbres that
bring true
instrumental
character and
dimensionality.
This, of
course, was
above-and-beyond
the fact that
no speaker had
managed to
assemble ALL
virtues into
one package.
(Perhaps I
should add
that I feel
that from
about 1982 on,
speakers, in
general—not
specific—have
been getting
brighter and
boomier.
It's
almost as if
we're saying
that we can't
get the
excitement
that we want
out of our
systems, so we
try and liven
it up a bit.)
I began to
feel that
vibrance,
dynamics and
timbral
control had to
be the
pursuit. Not
because they
seemed the
most
important, but
because they
seemed the
most difficult
to attain. So,
I made it my
goal...hoping
that if I
attained these
attributes,
the others
would come
along for the
ride, as it
were. Each of
these elements
seemed to
depend,
intuitively,
on pistonic
movement.
Since it
didn't seem
possible to
make a panel
speaker
perform like a
perfect
piston, I
chose to
pursue
dynamic-driver-based
speakers.
(Yes, some
panel-types
have come
close to
pistonic
movement, but
they still
sound a bit
thin,
timbrally, and
dynamically
compressed.)
However,
dynamic
drivers seemed
to possess a
few
dichotomies of
their own:
Soundstage
width/depth,
solid
fundamentals,
timbres, and
"pace and
rhythm"
all seem to
need large
moving mass.
But, to have
detail, good
transient
definition,
and
transparency,
you need low
moving mass.
Broadband
agility and
low bass seem
to require a
loose
suspension;
but,
power-handling
and absolute
output require
a stiff
suspension.
Loose
suspensions
seemed agile,
but not
"detailed";
responsive,
but not
vibrant. These
kinds of
questions and
dichotomies
represent some
of the more
challenging
"troubles"
and
"difficulties"
in getting a
dynamic
speaker to
"get
close to the
music." I
figured that
if they seemed
mutually
exclusive, it
was only
because I
hadn't found
the answers
yet.
CP:
How long have
you been
tinkering at
this new
midrange /
woofer
technology?
TB:
I began my own
efforts in
1981, but I
wasn't sure
where to
start. (I have
lived and
breathed
speaker design
ever since.) I
suppose that,
for me,
dynamics came
first. Since
the overriding
dependence on
driver
function was
the
interaction
between the
box and the
woofer, I
started with
loading
techniques. I
tried
everything:
Transmission
line, closed
box, B4, QB3,
etc. Nothing
seemed to
work. However,
everything
seemed to
point,
dynamically,
to using
stiffer
suspensions
and smaller
boxes. While
this improved
dynamics to
measurable
degrees, I was
losing my
low-bass
extension. (no
surprise) In
1993, I
designed a
smallish box
(1.5 cubic
feet) around a
high moving
mass, yet
relatively
stiff 10"
woofer. (the
high mass was
my attempt at
bringing in
low bass.) The
low-frequency
cut-off was
around 30Hz.
But, I still
had a number
of problems:
1) High moving
mass drivers
want to stay
in motion, 2)
the high mass
of the woofer
precluded any
midrange
response—forcing
a 3-way
approach
(which was
o.k., but it
introduced a
whole new set
of variables),
and 3) there
was still
entirely too
much distance
between the
"speed"
of the tweeter
and that of
the woofer.
CP:
Can you tell
me how you got
the "20
times
faster"
and "100
times
quieter"?
TB:
I have always
used tweeters
that have
"rise-times"
(measured with
a
"step"
or impulse
response)
between 6-12
uS. The
6.5"
"midrange"
that I used
for the 3-way
that I
designed in
1993 had an
out-of-box
rise-time of
about 70 uS.
But, when this
woofer was
dropped into
the box, the
rise-time was
close to 1500
uS—more than
20 times
slower!! The
10"
woofer that I
described had
a rise-time of
about 150 uS,
free-air; but,
it was closer
to 2500 uS in
my "small
box,"
QB3. This kind
of disparity
(12->1500->2500
uS) was
actually quite
good, by
market
comparisons,
and the whole
3-way did
quite well in
it's day. But
I couldn't
help but think
that since the
voice-coil of
each driver
sees signals
which travel
at—or near—the
speed of
light, there
had to be more
information
"in
between"
this great
disparity in
speed. I have
since learned
that both a)
musical
"energy"
and, b)
dynamic
gradations,
are lost when
the
differences in
speed are so
great.
You
asked how I
came up with
the numbers
"20 times
faster, and
100 times
lower in
distortion."
Well, the
answers are,
perhaps, a bit
more practical
than
technical. The
10"
woofer that I
designed for
the Khorus has
a free-air
rise-time of
about 130 uS.
In a 1 cubic
foot box (like
the Khorus'),
QB3 loading,
the 3dB down
point would be
around 60 Hz
(not good),
but the
woofer/box
combo. would
have a dynamic
rise-time of
about 1500 uS.
(Progress,
compared to my
system of
1993.)
HOWEVER, in
the
"Group
Phase"
loading
(explained in
the attached
technical
paper) the
rise time is
less than 50
uS, and the
3dB down-point
is 17 Hz! So,
as far as the
"gain in
speed"
goes, you
divide 1500 uS
("old"
QB3 loading)
by 50 uS
(Group Phase
Coupling), and
you find that
GPC brings a
gain of 30
times, for
this
particular
woofer.
As
for the
"100
times lower
distortion,"
we took a
low-frequency
organ note
(around 28
Hz), IN A
MUSICAL PIECE,
and turned up
the volume
until we got
to the point
of hearing a
"tremolo"
kind of a
sound. (the
point at which
intermodulation
begins to
dominate) With
the QB3
loading, this
occurs at a
continuous
sine-wave
output of
about 105dB.
(1M) Under the
same
conditions,
the Group
Phase loading
showed no
signs of this
sound...even
at 126dB,
where the
amplifier gave
out. Here's
where the
numbers get a
bit tricky:
126-105= 21.
We're getting
at least 21
extra decibels
out of this
loading. If
you add 21 dB
onto 10 Watts,
you end up
with close to
1300 Watts.
Since every 10
dB greater is
a
multiplication
factor of 10,
we figured
that there
wasn't much
difference
between saying
that we're
getting 100
times the
output
wattage, or
saying 100
times lower
distortion,
since it's all
measured
logarithmically.
I suppose that
it's more of a
marketing
thing, but we
couldn't think
of how else to
describe it.
Group
Phase became a
perfect
solution since
it overcame a
number of
different
issues: 1)
"speed"
disparity, 2)
the apparent
dichotomy of
the virtues of
low/high
moving mass,
and 3)
suspension
control vs.
low-frequency
extension. One
of the
unforeseen
strengths
turned out to
be that the
overall speed
allowed us to
have much
better
integration
with a tweeter
than using a
low-mass
6.5" or
5.25"
woofer. (the
latter two, at
best, are 900
and 1300 uS
rise-time-performers,
whereas the
Group Phase
10" is
down below 50
uS...as fast
as a
dome-mid.)
As
the system got
faster and
faster, we
began to
notice
something:
Yes, the
system had
more detail,
more
transparency,
more
"blackness
between the
notes,"
but it was SO
clean that it
almost sounded
like it was
"missing
some
highs."
In fact, we
can't tell you
the number of
times we've
had
audiophiles
say, "I
don't get your
speaker...I
only hear the
highs when
there's
high-frequencies
in the
music."
Perhaps it's
just me, but
this statement
seems to
involve a bit
of pretzel
logic.
Nonetheless,
we use a
couple of
tests to
confirm the
existence of
the highs: 1)
a 1500-2500 Hz
square-wave,
and 2) live
music—typically
massed
violins. We
use square
waves because
the leading
edge will
demonstrate
both
high-frequency
extension AND
high-frequency
control. The
"control"—lack
of ringing—is
important to
rich and
delicate
harmonics in
the same way a
linear damping
factor is for
an amplifier.
The rest of
the square
wave
demonstrates
how coherent
the system
is...timbrally,
dynamically,
harmonically.
As for the
massed violins—it
is extremely
difficult to
produce their
unique set of
fundamentals +
harmonics;
due, in part,
to the fact
that there are
lower-frequency-based
"beat
frequencies"
as a result of
the various
playing styles
of the
individual
violinists.
Having the
group sound
large AND
"sweet"
is a horrific
challenge for
tweeters to
negotiate.
CP:
Please explain
why this
speaker sounds
rolled off
until well
broken in?
TB:
If we listen
to harmonics
alone, the
system isn't
"rolled-off"
at all, but if
we listen for
the
"air"
that we're
used to
hearing, then
I would have
to say that
all 3 speakers
sound
rolled-off. Of
course, Talon
would like to
believe that
what's missing
is all the
modulation
caused by the
(uncorrected)
beat
frequencies of
the various
phase shifts,
which exist
naturally in
dynamic
drivers. (see
"inversion
circuits"
in the
Technical
Paper.) We
also feel that
there are
several
arguments
supporting
this: 1) no
instrument
produces its
own air. Such
"air"
only exists
through the
interaction of
the
room/microphone/mic-preamp
with the
instrument
itself. In
other words,
this is the
province of
the recording
engineer, not
the speaker
designer.
(just think
about how a
given
speaker's
presentation
of
"air"
is
superimposed
on every piece
that is passed
through it. It
tells you—even
if you're
blindfolded—"oh
yeah, I
recognize this
speaker...it's______."
Live music has
no omnipresent
"air.")
2) Listening
to a good set
of headphones.
(I use this
example
because with
headphones,
the
"mechanical"
problems are
on a much
smaller, and
more
manageable,
scale.) The
better, and
faster, the
headphones
get, the more
you are aware
of the
harmonic
richness of
the music, not
the
grainy/shushy
sound of the
"air."
They get
cleaner, and
more
controlled,
and LESS
hissy.
In
the end, it's
hard to make
excuses for
the
high-frequency
balance,
because the
speaker meets
the design
criteria.
Basically, we
feel that we
have to have
the discipline
to leave it
alone and
trust that the
future will
bear it out.
It may sound
"softer,"
but only by
direct
comparison. If
we turn the
whole
"problem"
around, we
realize that
we can get far
greater (and
cleaner!)
dynamic output
this way. In
any case...So
far, this
presentation
of
"air"
seems to be
the closest
thing to an
identifiable
"weakness."
And yet, it's
probably
closer to a
"flavor"
choice, than
an absolute
weakness.
The
Khorus DOES
measure like
it's about 3-5
dB down in
level compared
to the
midrange (2KHz
on up), but
there reasons
for this:
Mostly, it's
because the
Khorus has two
tweeters which
overlap,
electrically,
from 3-20 KHz.
Placing a
microphone at
a
"listening
distance"
helps show the
true in-room
output, but
now the
distance from
the microphone
demonstrates
all kinds of
room
cancellations.
Actually
listening to
something like
warble tones,
or 1/3 octave
bands (like on
the MF Sound
Check 2 disc)
will
demonstrate,
empirically,
that there
isn't any
terrible
disparity.
CP:
How did you
meet sales and
marketing
president Mike
Farnsworth?
TB:
Mike and I met
because he had
spent a few
years building
speakers, and
he was
convinced that
no 10"
woofer could
ever do what I
claimed it
could. (sound
familiar?) He
had to come
and hear for
himself. (This
was almost 2
years ago.)
After hearing,
he called me
every day for
two weeks. His
first comment
in each
conversation
was,
"that
speaker has
thrown me for
a loop."
He was
actually only
looking for a
subwoofer, but
ended up
saying,
"this is
what I've
wanted to do
all of my
life." He
has become the
driving force
behind
refining, and
getting all of
this to
market. I have
always wanted
the Technology
to be
"complete"
(meaning, an
assembly of
ALL musical
virtues and/or
minimum of
weaknesses),
and Mike has
wanted to make
the COMPANY
"complete."
(i.e. finished
look and feel,
brochures,
ads, reviews,
manufacturing,
everything.) I
couldn't have
met Mike at a
more perfect
time. Any
sooner, and
some of the
Technology
would have
been set aside
for
manufacturing
concerns. As
it is, he took
no
convincing...he
knew it
instantly, as
if he had been
doing this for
years.
CP:
So how did you
come up with
all the names
at Talon?
TB:
For about 6
years, we've
gravitated
towards raptor
names. (Khite
is actually
Kite with the
Khorus'
"h"
in it...we
also have a
product by the
name of
"Khestrel,"
in the works.
"Roc"
is the name of
a mythical
raptor that
could hold an
elephant in
its claws.) It
took a bit of
time and
effort to come
up with a name
that was
fairly simple,
strong, and
represented
our tendency
to raptor
names. For us,
"Talon"
works. (The
logo was
another
struggle
altogether,
but we feel
even better
about its
"look and
feel.")
CP:
This sounds
all too easy,
which I know
it couldn’t
have been.
Were there
trails and
tribulations?
TB:
"Trials"
are a bit more
difficult to
enumerate,
both because
a) they bring
up difficult
memories, and
b) we feel so
fortunate to
be a part of a
technology
that is more
than the sum
of its parts.
Sure, we've
been through
debilitating
lies and
rumors.
(sometimes at
the hands of
those we were
only trying to
help.) We've
had more than
two dozen
potential
associates who
have either
graciously
offered to
separate us
from our best
ideas, or run
off with
cabinet plans,
take us to
court over
their own
mistakes, take
our services
but not pay,
steal and copy
crossover
designs, or
try to beat us
to market with
our own
product. But,
through all of
this, the
biggest
challenge has
always been
the following:
Locating an
answer that
you KNOW is
there, but has
never seen the
light of
day...then
moving to the
next
"answer,
"...and
the next
one...and the
next one...not
knowing when
you'll feel
it's
"complete."
CP:
What
challenges do
you see in
your bright
future and
what type have
you
encountered
thus far?
TB:
Over the last
two years, the
biggest
challenge that
we've
anticipated
has been that
of finding a
way to express
the reality of
the
technology,
and our
excitement
over its
introduction,
in such a way
that people
know that we
take the
technology—not
ourselves!—seriously.
When you think
about a
marketing-hardened
industry, it
takes as much
creativity to
genuinely
provide a new
technology as
it did to
"invent"
the stuff in
the first
place. Along
these lines,
one of the
biggest
struggles has
been to
present a
market-accepted
line of
speakers. This
Technology is
more expensive
than most, to
implement. At
one point, we
discussed the
possibility of
diluting the
technology, in
order to make
a more
affordable
product. But,
it was decided
that a) those
who would
criticize the
higher price
would likely
find something
else to
criticize if
it were less
expensive, and
b) those who
could afford,
or stretch to,
what we had to
present, would
greatly
appreciate the
"no
compromise"
approach.
Obviously, we
opted for
those who
would both
support and
appreciate our
efforts. As it
is, because of
the total lack
of
compromises,
each one of
the speakers
belies its
size—even
the Khite.
This is a
hallmark of
"Group
Phase
Coupling."
The Khite,
properly
demonstrated,
can portray
the full size
and weight of
the Symphonic
Double-bass
Drum...in a
way that most
$20,000
speakers
can't.
Through
all of this,
there have
been a number
of staunch
supporters...some,
of whom, have
been
responsible
for my not
giving up,
through the
hard times.
Now, just the
promise of the
technology is
enough to keep
us going for
years.
CP:
Okay, so what’s
in the future
for Talon
Audio?
TB:
The plans for
our future
might border
on the
"overwhelming"
to go into.
Suffice it to
say that we
have at least
5 products
planned, above
the Khorus,
and 2 products
"below"
the Khite. As
for those
"above,"
the idea is to
make them
bigger, more
efficient, and
more tailored
to an
individual's
home...not
sonically
better, per
se. (This is
not an attempt
to minimize
these
products, but
an admission
that the scope
of the Khorus
is truly
SOTA.) Those
"below"
the Khite
would be the
first Talon
products to
experience
judiciously
chosen
compromises.
In all
actuality, we
would love to
license out
Technology to
some of the
bigger
companies so
that the
compromises
are limited,
and the
technology is
more
accessible. We
hope to meet,
and become
involved with
every aspect
that will
better the
"experience."
We don't wish
to be anything
but speaker
designers, but
we'd like to
"lend a
hand"
wherever
possible. We
have
patentable
applications
for Sound
Reinforcement,
and
multi-media
presentation.
In either
case, we
believe that
we can provide
something that
has far
greater
performance
out of much
smaller and
more
manageable
packages. We
have a
patentable
idea for a
speaker with a
boom-microphone-like
reproduction
of sound. (for
exhibits and
displays) We
even hope to
take the
time-related
reconstruction
concepts to a
University,
and spend the
time
developing the
associated
equations. We
hope to leave
no stone
unturned.
In
the short
term, the
"products"
that we have
coming up are
1) some
seriously cool
retrofittable
spikes that
make use of
correct
mechanical-grounding
principles
(dare I
say...more
openness on
top?), 2)
visually
matching
stands for the
Peregrines, 3)
a more
"exotic,"
"export"
Khorus
enclosure
(read—expensive),
and 4)
visually
sprucing up
the Peregrines
and the
Khites, while
increasing
their own
ability to
dissipate
mechanical
energy. In the
long
term...while
we have
already
received the
initial
prototype
drivers for
the more
expensive
systems, we
have decided
to hold off,
in an effort
to provide the
best product
line that we
can right now.
CP:
Can you
provide a
cutaway photo
of the Khorus?
TB:
Although I
don't have a
cut-away of
the cabinet,
there is a
reasonable
description of
the loading
technique in
the Technical
Paper that I'm
sending you.
(We won't mind
providing a
cut-away, once
the patents
have been
granted.) As
for the Roc,
it uses all
the principles
outlined in
the
"Group
Phase
Coupling"
section of the
Technical
Paper. But, in
its case, I
designed a
12"
woofer with a
4"
voice-coil,
almost 2"
of
"throw,"
and the
suspension/motor-structure
of a
high-powered
18"
pro-sound
woofer. It's a
beast. (For
whatever it's
worth, the Roc
has enough
"speed"
to
successfully
negotiate a
900 Hz
crossover
point, but
this probably
doesn't
surprise you,
by now.)
CP:
Explain what
occurs when I
stuffed the
ports on the
Khorus’?
TB:
The Khorus'
impedance
looks like a
classic QB3
design, with
two separate
peaks in the
low end. (one
at approx. 50
Hz, and one at
17Hz.) But,
unlike the
QB3, the Group
Phase loading
doesn't set
the
low-frequency
cut-off at the
trough between
the peaks.
Rather, it is
at the center
of the lower
peak. With the
port plug in,
the system has
only one
low-frequency
peak,
coinciding
with the upper
of the two
peaks. In
other words,
it now has the
impedance
structure of a
closed-box.
The
low-frequency
cut-off, under
these
conditions, is
about 50 Hz.
But the plug
causes the
appropriate
phase shift to
begin around
80 Hz. Having
removed the
"duty"
of the bottom
2 octaves, the
Khorus plays
with even
lower
distortion,
and actually
sounds more
efficient. Of
course, the
performance of
the Roc helps
elevate the
response of
the entire
system. You
almost have to
think of it as
bi wiring from
the
preamp->out,
instead of the
normal
amp->out.
Well,
I just
estimated that
you're getting
about 10-12
pages worth of
information...but
then...dare I
say
it?.."you
asked for
it."

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