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Tube Powered Biased Cable System
We truly believe that Aural Thrills Audio
has created the finest cable in the world bar none. We know that there is no
other cable like it in the world, period. In simple terms the shield is
actively powered by a real tube amplifier. In complex words, the sound is
indescribably incredible. If you have never splurged on a high end
interconnect, this is the time. If you like the sound of tubes you will love
this cable. Tube rolling, power
cord rolling, interconnect rolling are all a reality for the first time in
an active interconnect. The concept of a tube powered cable has never been
seen before. After much research and listening tests, the impossible has been
achieved. Other cables are just wire in comparison. This Tube Powered BCS is
a reality machine.
Compared to my
other active cable this is without a doubt the best sounding. As usual it is
much more difficult and expensive to make. It uses house voltage to power
the shield. It is an actual tube amplifier in all respects including 12.6v
filament transformer and 240v power transformer. The AC filament gives it a
very rich tube sound. The refined power supply activating the shield adds more space than any other
model I make. Besides tube rolling you can also change the power cord on
this model giving you the ultimate control.
So how does it sound? Like a cable which is
a good tube amplifier instead of the low tech solid state offerings of other
companies. Extended highs and lows with imaging that only an active cable
can bring. I dare you to compare this cable to the finest out there.
The shield is charged to 80 volts by a 12au7 tube amplifier which is coupled
to the signal lines via some specifically manufactured resistors. Musicians
step out of your speakers and into your room. Uncanny is the only way to
describe it. At times I have been startled by sounds contained in recordings
that seemed alive and in my room. Try out your favorite NOS tubes and you
will hear the differences just like in amps. Change to your favorite power
cord and you will again hear the difference just like in your amp. Nothing
else like it.
The signal lines are connected to the
shield by a pair of specifically manufactured resistors. What is created is
a pseudo balanced interconnect, as the shield is effectively neutral
relative to both conductors. Relative to the equipment ground, the shield
sees half the signal voltage swing. Einstein would ponder the following
question, what if the wires do not know that ground is ground? The results
The wire used is the same awesome
22awg used in our Bass Boss cable. I feel this cable has the best balance of
highs, lows, bass, and detail. The wire is surrounded by a poly shield
which is charged by the output of the tube amplifier.
We need to talk about the
importance of a good connector. Most connectors are made of
Brass. This is done because brass is easy to cast into the desired shape not
because it is a good conductor. Brass is a alloy of Copper and Zinc. Zinc is a
terrible conductor of electricity. For that reason we have developed a Brass
free Rca conductor which eliminates Brass form the signal path. It uses only the
same silver alloy that is contained in our wire as conductors. The base of our
exclusive Rca is made of solid Teflon, one of the best electrical isolation
materials around. It effectively blocks all outside interference from entering
your equipment through the Rca connection resulting in a quieter background.
Connectors of this quality costs $50 or more each from other companies. They are
standard on the Tube Powered BCS.
The care that goes into making a
pair of these is evident in the details and quality of materials being used.
we have isolated every sound quality by many, many, hours of critical
listening. From the solder, to the Rca connectors, to the wire being used, we
know exactly what each element brings to the sonic table. It is by careful
mixing of each harmonic ingredient that Aural Thrills Audio has arrived at
Just a word about Aural
Audio. Having created fine cables for over
ten years we are devoted to being a
personal, upscale, company that builds custom products. Not many other
companies on Audiogon have stood the test of time. We run only one company, 24/7 and strive for your complete
satisfaction. Please check out our 100% positive feedback. The goal is to be the
best high end, custom audio company by designing and producing innovative products to order. Our audiophile grade of wire is made exclusively for us and is created using
base metals of 4 nines or better. The innovative engineering and designs make us
a leader of high tech products. In closing we want to thank all of my present
customers and look forward to making many new ones. Here is some recent
feedback about this cable.
The following transaction and feedback are going to be added to your
I am very happy and excited with your tube cable; as a matter of fact i don't
remember when was my last time that i have enjoy so much a change on my
equipment. Its unbelievable that my $3,000 cable has been replaced with your
cable. I replaced the AC power cable with a really good one and replaced the
tube with a 12au7 Amperex from 1958. With these two changes I have to tell you
that everything on your site is the truth.I am listening to music and forgot
Action: Bought from you
Item: Aural Thrills Audio ACS Tube powered
Submitted Rating: Positive
THE TUBE POWERED INTERCONNECT IS THE BEST! I HAVE USED HALF A DOZEN
BRAND NAME CABLES OVER THE YEARS AND THIS ONE SURPASSES THEM BY A WIDE
MARGIN.SIMPLY MAKES MY ENTIRE SYSTEM SOUND MORE LIKE LIVE MUSIC.WHAT MORE
CAN ONE ASK OF ANY COMPONENT?
I have run your cables about 100 hours now and vastly prefer it to the
not-too-shabby Signal Cable's Silver Resolution IC it replaces because
of its superior, relaxed presentation. It makes
listening to music more enjoyable at any volume level,
but especially at low levels where much more space
Again thank you for your work.
* email for details
I received the cables, and as skeptical as I was when I purchased them, i
thought, all it could be is a cheap trial. Well, I must say I am extremely
surprised with the quality and the sound is so much better. The details of the
mid-range and top end was brilliant, and the bass was more pronounce. This is
one of the few cables that I have tried that handles any music you throw at
Great job and thanks.
I just wanted to let you know
that I have run this cable for about a week since breaking it in and it’s a
keeper! After changing to a NOS tube and a really good power cord I was
simply amazed! Although the cable is not cheap, it is a true example of
great bang for the buck. With your money back guarantee and support I
believe this purchase should be a no brainer for every audiophile out there.
You can put me down as an enthusiastic convert. Great job! Don’ forget us
when you’re rich and famous……. Gary, Arlington Va.
What Makes Aural Thrills Different?
The unique feature of Aural Thrills Audio is the fact that
ALL EQUIPMENT (except
sending components) in my reference audio system has been developed by me!
From the phono stage, pre amp, mono blocks and cables, to the final sound
of the speakers. Each product has been developed and tested by one person.
This gives me a unique understanding of the reproduction of sound. With
four years of college ear training, ten years as a professional musician
in NYC, and unmatched passion, I feel that I have the tools necessary to
create the finest reproduction equipment in the world. I have spent the
last ten years learning the intricacies of tube amplifiers. Every part.
Every wire. Every component. They all matter. Connecting all of this
equipment with compatible cables has become a daily obsession. As one of
my customers said, "I live audio."
In these days of endless loops of frustration, you can
count on getting a real person when you deal with Aural Thrills. No press
1, press 5, etc. You get a real person from the beginning. Someone who can
answer all of your questions. Emails are answered many times a day. Leave
your number and I will call back, really! With a 60 day, no questions
asked policy on all of my cables, you can be sure that your purchase will
work with your total system sound.
Lastly, it is my commitment to make sure that every product
is made to my standards. Every product guaranteed to bring a smile to your
face. Every order processed with the passion that only hand made goods can
deliver. I put my reputation on the line with every product I make. I try
my best to do all that is needed. I also try my best to keep prices
reasonable. Please consider that you are buying more than a
constructed product. You are buying my mind, my craftsmanship and my ears
which have worked on each component obsessively for countless hours.
Cable Design Theory
Aural Thrills Audio only sells
very special cables! Designed to provide your system with the ultimate
sound. They will not degrade the signal as many other cables tend to do.
Why? Our cables have been specially designed to provide a clear, deep
sound by utilizing solid core technology. Stranded wire has many points
where the wires touch each other. This creates a smearing effect as the
signal jumps from one wire to the other. The larger the wire, the more
this effect becomes evident. Research also shows that stranded cables
creates time distortions due to the uneven manner in which the signal
Next we must look at the wire size. I am
always amazed by the "oh wow" reaction of audiophiles upon seeing a very
fat cable. In true American fashion, the belief that if a little is good,
more is always better comes to mind. NOTHING COULD BE FURTHER FROM THE
TRUTH! The major portion of an audio signal actually travels as a wave on
top of the wire, much like a train travels on top of the tracks. A very
small part of this wave travels inside the wire. Since the wire actually
slows the signal down a time distortion is created between the signal on
top of the wire and the part of the signal in the wire. The best way to
minimize this effect is to use a small diameter wire so that very little
signal is traveling through the wire itself.
The third item in cable construction to
consider is the material surrounding the wire. Some companies use many
layers of coverings to convey the image of huge size. Again, this is not a
good thing. These layers act as huge capacitors for the signal. Capacitors
store and then release their energy. The result is a smearing and time
warp creating a cloudy sound. The cleanest sound is achieved by using
Teflon. Teflon will not absorb any of the signal. This means the total
signal arrives at the same time. None is released later causing
To shield or not to shield? In most cases
adding a shield to a cable takes away a little bit of the spaciousness
from the sound stage. Unshielded cables are great for Solid State
equipment using lengths of under nine feet. They deliver a spaciousness
and clarity of sound that most people find very appealing. When using Tube
equipment or cables over ten feet shielding is needed. The transformers of
tube amplifiers are gigantic EMI producing machines. Using an unshielded
cable with tube equipment will result in an induced hum. Always use a
shielded cable with tube equipment. Cable runs of over ten feet tend to
act as huge antennas picking up local radio stations. (RFI) To avoid this
you MUST use a shielded cable. Lastly, phono cables must be shielded.
Cartridges produce very small amounts of voltage. some moving coil
cartridges produce only .2mv. This low voltage is very fragile and must be
protected from your local radio stations which will overpower this
Cable Break In
All cables take a certain amount of time to burn in.
This may sound crazy but it is true. I have heard many theories for this,
but the one I tend to go with is the alignment of atoms within the wire.
It changes as the wire is subjected to electrical charges and ends up
aligning in the direction of electron flow. Most cable will sound good for
the first hour or so. Then they start to degrade. They become bright,
edgy, distorted, and closed in. The worst sound is at about 50 hours of
play. Slowly the sound will began to improve and at about 100 hours things
will start to really improve. The one exception to this scenario is Silver
wire which breaks in much more slowly. We do offer a burn in service using
the Hagerman professional model. It takes 48 hours to complete the
process. The cable is subjected to a frequency sweep which contains
signals above and below the frequencies of Human hearing. Although
additional break in is still required, this really speeds things up.
Amplifier Design Theory
I am committed to simple
designs which do not feature a lot of additional circuits. I love the
early designs. They tended to stick to the basics and did not add a bunch
of "correction" circuits. I have constructed and listened to most types of
tube audio designs. The more circuits that you add, the more they start to
sound like solid state. If that is what you want, why not just buy a Solid
State unit? My amps use the old designs but with an important twist, high
end parts. Modern capacitors and resistors are faster sounding, but still
retain the tube qualities we all love. The best of old and new. I usually
prefer tube rectification (changes AC to DC) but occasionally solid state
rectification is better. When developing these amps I always make each
version and listen. All Electrolytic Capacitors are by passed with film
capacitors to add extension.
I want to talk about amplifier
test numbers. I am aware that this is a delicate subject which can
sometimes lead to hostilities. I must tell you that I am not the
engineering type. I design and build my amps much like I played my
Trumpet. I was taught music theory and after teaching my ear to recognize
what the theory sounded like, I never thought of theory again. I have done
the same in amplifier design. I know what each circuit sounds like.
I have built and listened to them using the electrical theory that I have
learned. After hearing what each theory sounds like, I no longer want to
talk theory. I only want to talk sound.
The early amplifiers were somewhat low in power. Only a
few watts. Many different types of tubes were used and each had its own
charms and weaknesses. Soon, amplifier makers found that customers were
power hungry. The war was on and nothing will ever stop it. If some is
good, more must be better. It is American as Apple Pie. In the quest for
more power I feel that certain intangibles were lost. The simple beauty
and clarity of a few watts were slowly, a watt at a time, changed to brut
force power. Even non audiophiles could hear the difference. I think they
got it right the first time.
Due to the length of break in I offer a 60 day return
policy on all cables, no questions asked. Just pay for shipping. I can offer this
warranty because I am so sure you will not want to part with this cable.
All cables carry an unconditional lifetime warranty to the original
purchaser. Just return to Aural Thrills Audio and we will take care of any
problems. Cables that have been abused or mistreated will be repaired for
a slight cost to be determined upon inspection. All amplifiers carry a 1
This is my pride and joy, no, my
obsession. As you can see, all components (except sending units) have been
constructed by me. This gives me a unique perspective on sound
reproduction. I am an avid record collector of 50's Jazz as well. I have a
good collection of the regular labels, Blue Note, Verve, Pacific Jazz,
etc. and also a bunch of not so well known labels and artist. You would
not believe how good some of these 50's recordings sound. Most were recorded with tubes so they just seem to sound right in my all tube system.
My system generally looks terrible. I am always trying new combinations of
circuits and design ideas. It's all about sound.
As you probably noticed, I
watch movies with this system as well. I really believe that the sound is
superior to five channel home theater systems. The soundstage is more
real, not manipulated and much closer to reality. A good Stereo VCR is
close to a record for sound quality. Rich, warm, just awesome Analogue. I
hate to admit it but I have become a fan of the musical.
The mono blocks are Aural
Thrills Audio 300B, push pull units. Each puts out a big 25 Watts but
still retains the beauty of the 300B. As you might expect, the filaments
are AC powered. PP configuration cancels out noise and the sound is big
and rich. These amps sound like the reason you wanted a tube amp to begin
The speakers are a very
efficient 96db. Max continuous power is 45 Watts. 25 Watts will blow you
out of the room. My love of early design, low powered tube amps led me to
these back end loaded horn design. The drivers are full range which
eliminates the need for a crossover. My theory for audio is always "less
The bass that comes out of
these speakers is unbelievable. The transmission line design is tuned for
50Hz. The sound coming out of the lower outlet is also delayed a little
bit. This creates a wonderful ambience for Jazz and Classical. These
cabinets have been constructed of 1" Baltic Birch Plywood. A very dense,
slow growing species imported from Russia. Unlike normal plywood, any
voids in EACH layer are cut and filled with a plug. You can see that there
are no areas without wood, on each layer! The speakers weigh about 175
pounds each. As is the case with a single driver, imaging is spooky. Final
finish will be done soon
A VPI TNT with speed controller
mounted on a Lead filled VPI stand is the basis for all of this great
sound. A Graham tone arm is used. I love this arm. It is very easy to
mount a cartridge and alignment is accomplished to an amazing accuracy. I
usually use Low Output MC cartridges. Mounted now is a Benz Gold. A very
nice cartridge for the money. The table is connected to an Aural Thrills
Phono Stage by an all Silver Aural Thrills tone arm cable with five pin
Cardas connector. Next the Phono stage is connected to a Two Stage Cathode
Follower pre amp of my design by a pair of Aural Thrills Bass Boss cables.
Output to the 300B mono Blocks is handled by an Aural Thrills, Tube
Powered Active cable. All amps are connected directly to a dedicated line
by Aural Thrills 10awg Power Cords.
I have found that buying and hooking up expensive equipment
without further tonal development results in an inferior sound stage.
Components which are compatible are as important as the greatness of each
component by it's self. All systems can be tuned by the proper use of
cables, acoustic treatments, and the sonic signature of the room itself.
It can take many years to get a system "dialed in" when done on a part
time basis. It is for this reason that I now offer complete systems with
installation, including all or any part of the system shown above!
All the cables and amps are already maximized for the best
sound possible. All of the components match sonically, and are of handmade
quality. If you appreciate Vinyl and Tubes, gigantic sound stages, the
illusion of reality, and a sound that anyone can hear is special, then
this is the system for you. I will personally construct, deliver, and set
up a complete system in the room of your choice. If you want the sound but
don't have the time, this is the way to go. Complete systems start at
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