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Our readers already know
quite well about Kimber Kable and many of them are sparingly familiar with
some of your cables, but they dont know very much about firm's beginnings
and about you personally. What is this what, put you on the way of cable
making, and how comes to founding the cable manufacture.
In the Mid ‘70's while
working as an engineer for a sound and lighting company, I noticed a lot
of buzzing, snaps, pops and crackles in the sound system. This came
as a result of the use of high powered lighting systems that in effect
acted as a giant antenna array that would feed back the noise from the
lighting system. It was at this time that I started building cables
from scratch to see if possibly he could create a cable that might ameliorate
this problem. To my great surprise the finalized version of his
braided wire concept not only rejected the noise, but allowed the system
to sound different, better, musical. It was after this period of
discovery that I decided to take a risk and began entertaining the idea
of selling my new discoveries.
When and how you get
to the knowledge that cables are important part. of an audio system? Is
there any special moment that has light the bulb?
My fondness for new
discovery and experimentation actually began in the first grade when I
built a crystal receiver, tweaked it, without help or knowledge,
by adding to it a set of army surplus headphones. It wasn’t supposed
to work, but it did! After my experiences in managing
a theater, a couple of concert tours, assembling professional audio sound
and lighting matrices, and sales of high-end kits, I finaly realized that cable
was more than just merely important. If weaving cable could alter
the sound so significantly, I figured everything else about cables was
on the table for discovery, rediscovery or reinvestigation. Over
the years I would test various metals as conductors, assorted manufacturing
protocols, assorted stranding sizes, different twist lengths and insulation,
as well as methods for adhering insulation to cable. All the time
improving, modifying, and expanding upon his original cable concept and
design.
Who is responsible for
construction of majority of the Kimber cables? You personally or there
is constructor team?
At this point Kimber
Kable has grown to over thirty employees, the majority of whom are responsible
for the manufacture of the cables. I still oversees all facets
of the business. Especially the manufacturing, which is performed under
tight quality control standards. Virtually all of the manufacturing
is done at our facility.
I know that you have
very well developed research equipment, and very modern cable plant with
a special isolation chamber for sophisticated noise testing. Could you
in short describe how this plant really looks like?
The Kimber Kable plant is nearly 30,000 square feet
(almost the size of an American football field).
The front part of the building is home to our administrative and sales
staff, as well as our graphic arts department. The rest of the building
is divided among manufacturing, inventory, research and development,
special projects testing and listening areas. We have approximately
half a million dollars US invested in test and research equipment.
And this is current equipment, not a bunch of outdated instruments.
Do you start from scratch
when constructing new cable, or you relay on some previous knowledge -
yours or any others?
We most certainly rely
on our many years of research and experience and I am still a head of the
R &D department, but we have engineers and technical people with years
of experience in RF technology, chemistry,
mathematics, materials science and the audio industry. Some projects
dictate that we should start from scratch to ensure a solid basis from
which to engineer. Other projects are extensions of our previous very advanced
and sophisticated research and design.
Is it cables problem
related only on how good is implemented Ohm's Law or there are some secrets
related on parascience. Precisely speaking, is the quality of the cable
predictable in advance, or it depends on qualities and construction of
the gear that they connect? Is it possible to construct cable that will
sound good, independent of components it connects?
Ohm’s law is certainly
applicable. However, of much greater importance are capacitance,
inductance and frequency response. We also execute very special proprietary
sets of measurements that reveal a great deal more regarding cable performance.
For example; a couple of years ago we started testing the impact of various
pigments on insulation and how those pigments affected signal propagation
through a cable. In our tests, we discovered that a pigment can alter
the dielectric constant-which will affect the sound. So is the performance
of a cable predictable based on measurements alone? For certain applications
the answer is now yes. However, we don’t take that approach.
We constantly correlate measurements with listening. And what we
have learned is very exciting. Our products are also designed to
perform on all systems. We don’t take the “tone control” for your
system approach. Our products also do not suppress information or
natural electrical phenomenon. In other words our cables are very
conductive, or to put it more correctly, are very supportive of energy.
On what users should
pay lot of attention when using cables - on temperature of the environment,
preserving them of influence of vibrations, putting them away from mains
leads or from each other, sources of magnetically radiation... Or is there
something much important?
Any system that is set
up properly and with great care is going to perform better. We certainly
don’t require that our cables only work in absolutely perfect environments.
After all most audio systems have to be adapted to our living environment.
Most people aren’t able to adapt their life to the fickle needs of their
audio system (however, I’ve known many audiophiles who have).
What is much important
part of a cable - conductors material, dielectric material, insulator...
or is it construction and precise of manufacturing? Could you briefly
explain why?
They are all extremely
important. It all starts with the conductor. We have spent
a great deal of time researching and implementing different conductor materials
and combinations. Like mentioned above, the dielectric (and even
it’s color) are key. Geometry may be the biggest factor of all in
our cables. Our research into the geometric relationships of conductors
has yielded us enormous technological dividends. Precision of manufacturing
is a must, or you lose all the advantages you have worked so hard to obtain.
How these specification
influences on some important sonic characteristics: frequency and transient
response, sound staging and imaging, speed and punch, attack and control,
dynamic range or transparency? With which of these characteristic cables
has the biggest problem to express them?
The very advanced and
sophisticated testing that we do allows us to correlate the different sonic
characteristics of a cable with the myriad of different electrical parameters.
It’s difficult to say which sonic parameter is the most difficult to reproduce.
One that comes to mind is the ability for a cable to have incredible transparency,
clarity and ambience retrieval with no hardness, harshness or glare.
I feel that we have achieved this in many of our designs.
Which part of the frequency-response
makes the biggest, problem for cables to reproduce it?
The ability to reproduce
all frequencies evenly and in proper time and phase is the most difficult
and most important.
Kimber Kable cables has
the simplest geometry of all other quality cables on market.
I don’t believe
that our cables have the most simple geometry. To simply twist wires
together could be termed the most simple. When you see our many braiding
machines at work, and realize the time, effort and technology that went
into refining these machines you would probably re-state the question.
On the other hand one could say that our geometries are “simply” the most
advanced.
Are these problem
bigger when cables are connecting transistor or tube based products?
A correctly designed
cable should work well on all properly designed audio equipment, regardless
of it’s tube or transistor origin.
Which cables are much
critical for the sound quality, speaker or interconnect? How much important
is their length?
Remember the saying
“your system is only as good as it’s weakest link?" I believe in
that saying you have your answer.We design our cables for extremely
low loss, which makes allows them to maintain their performance at longer
lengths.
What will you say, in
which sound element(s) Kimber Kable cables outperform other great cables
on the market?
A number of cables on
the market have a sound which could be characterized as “different” or
“easily distinguishable” from the rest. Are these cables presenting
a true and accurate representation of the signal fed to them, or are they
simply different? We aim to make our cables the most honest, accurate,
neutral and correct products available today and in the future.
Which of your cables
you personally think is the best you've made till now?
I’m sure our customers
would offer various opinions as to what they feel is our best cable.
Our Kimber Select line is the most advanced product we offer today.
A lot of what we apply to those products was a direct result of what we
learned from our Black Pearl project.
Some of our readers made
the power cords out of your 4TC or 8TC speaker cable, and they states they
were very satisfied with results. What do you think, do they really did
a good job?
I cannot recommend the
use of speaker cables for home or commercial AC mains power applications.
Our Kimber PK series of power cables was created for this purpose.
And only for use between the wall outlet and the audio/video component.
Many of them buy the
cables from reel and soldered them at home. Can you suggest them how to
terminate them, both interconnect and speaker. When terminating speaker
cables some of them do not solder all the wires on both sides - on the
amplifier side they leave few wires in the air, because of "damping" the
EMF. Is this correct or not?
We do sell some of our
speaker and interconnect cables in bulk. Space and time do not permit
us to address every interconnect and how it should be terminated.
Our speaker cables are connected equally on both ends. If customers
are unsure as to the proper way to terminate a cable, we suggest they buy
the product factory terminated.
Are the Kimber Kable
cables safe from RFI no matter how the environment is polluted by them?
Our cables have greater
RF rejection than any we are aware of in the audio industry. As for
complete safety...it is possible for RF to become strong enough that no
person or object would be safe.
What actually really
affect the sound of the cables?
RF interference definitely
affects the sound of cables in most applications. In most stages
RF rejection is crucial.
Do you prefer single
ended or balanced termination?
Both single ended and
balanced termination have merit when executed properly and used within
the correct context of the circuit in question.
Is only conductivity
the reason silver and cooper cables sounds so different? Many people think
that silver cables sounds very open, bright, analytical. My experience
with quality silver cables (including KCAG) isn't the same. So, what about
your experience? And, why they have this kind of experience?
Silver cable does have
slightly greater conductivity. But, the greater issue is that silver
has greater speed and bandwidth. Silver is also more sensitive to
mismatches of impedance, etc., and is therefore less forgiving than copper.
When designed correctly into a cable, and used with the right system, silver
is glorious indeed.
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