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WT100 XL LS
PREMIUM 100-watt Stereo Amplifier - Premium Build, Personal
Attention, Onsite Voicing, and Switchable to Mono.
All Aria Products are made in the United States (click here for details)
XL Amplifier. Brushed champagne and silver aluminum.
Triodes. Current-steering output stage. All the delicacy,
all the power, all the music you expect.
Build Quality Option
only the very best will do.
class of amplifier is designed to provide the maximum musical
resolution that I know how to achieve and it must perform to that
level in the environment into which it is installed.
Advantage One: The Very Best Parts
It's a well-established fact that the
law of diminishing returns applies to audio equipment just
as it does to many human endeavors. You can build a darn
good-sounding amplifier with only a few thousand dollars
of parts. And that's why the Basic
versions sound so good. But to get the very best sound,
requires the very best parts. And those parts are very,
XL version is
built with just such parts -- an amplifier for the music
lover to whom sound quality is of utmost importance.
To name a few of these parts: resistors
in critical locations are by Caddock and Mills, Black Gate
powdered graphite capacitors are used in all essential power
supply locations, Nichicon
storage capacitor assembly for the XL build is shown
on the right. The standard WT-build caps are on the
left. Click on the picture for an enlarged view.
Super Through main capacitors
RCA jacks are upgraded to WBT jacks, wiring is Van den Hul
"The Wind," the power supply uses a choke input
filter for sweeter sound.
And there's more: the tubes and critical
signal components are cryogenically treated, which results
in better electrical conductivity, a quieter background,
and a smoother, grain-free sound. This, combined with the
upgraded parts contributes to weightier, more coherent bass,
quieter background, see-through transparency, and warmer,
more natural sound.
These are the world's best parts, seen
in only the very best audio gear. The improvement in sound
quality is apparent even to the casual listener.
XL amplifier is personally aligned and listened to by
Michael Elliott, the designer.
Advantage Two: Personal Attention
I take pride in our quality control.
Each amplifier's electronic and mechanical subassemblies
are assembled in California at an ISO9002-certified facility
to my specifications. Final assembly of the completed amplifiers
is done under my direct supervision. All internal adjustments
are done in accordance with my specifications. Every amplifier
is tested with Audio Precision computer test and measurement
equipment and must meet or exceed the standards I have set
before it is allowed out the door. And my staff listens
to every Aria amplifier to make sure it sounds the way I
intended. And they sound very, very good.
amplifiers, though, receive additional care. After all,
they are intended to be used in systems of extraordinary
resolution, and their owners deserve to know that they sound
exactly as I intended them to. So I personally adjust and
align each one. And listen to it, burn it in, make adjustments,
and listen again. Only then is the amplifier ready to be
Advantage Three: Onsite Voicing: the yin and yang of perfect
While I take great care to assure that
each amplifier ships sounding the way it is meant to, I
would never assume that the way I want the amp to sound
is the way it needs to sound in your system. Every system
is different; and every listener has certain requirements
that he expects an amp to meet.
being able to tell the designer how you want the amp
to sound -- and have him adjust it to meet your needs.
(unless prior arrangements are made), all WT amps are "voiced"
at the factory to sound quite neutral. They possess a warm,
transparent midrange, tight powerful bass and detailed but
never fatiguing highs. The amplifiers sound like high-power
push-pull tube amps (with better bass and without the expensive
and unreliable output tubes, of course). But what if your
tastes lean toward single-ended triodes, but your speakers
demand the kind of power and control that no SET can provide?
Or if your system requires a faster, more detailed sound?
That's where the unique voicing
capabilities of the WT amplifiers can help. By making subtle
shifts to the operating points of devices in the amps, I
can shift the "tonal center" of the sound upwards,
to emphasize upper harmonics, speed, and transient impact;
or downwards, to provide a rich, pure midrange with velvety
is analogous to Harry Pearson's description a component's
character or basic coloration as falling along scale of
"yin (the dark, the receptive, the mother womb) and
yang (the bright, the fire, the rising white light) as a
barometer for character, with perfect sonic neutrality being
a perfect blending of the two. Say a `5' between a `1' and
I have established a "baseline"
voicing which has been determined to be that `5'. But through
slight adjustment of operating points of a crucial part
of the circuit, which is accomplished by making a small
change in the value of four matched 0.1% resistors [per
channel] the amplifier's basic coloration from very darkly
"yin" to quite "yang" in character.)
To achieve a perfect balance, the
voicing procedure ideally should be be done in your home.
After all, I don't have your system, and I won't know when
I've got it right until you tell me. We can discuss your
needs prior to shipping the amplifier, and we'll fine a
mutually-agreeable time for me to visit.
are custom built amplifiers and hand trimmed by me, personally.
They represent a level of resolution approaching the
best push-pull and single ended amplifiers, but with power
capabilities beyond that of most tube amplifiers.
I say that from experience because I have heard the very best
amps compared to them. I feel that for this amplifier
to prove to you that it is worth the admittedly hefty price
that it commands, it should be installed in a system that
is professionally evaluated and groomed. I understand that
this is not a price that everyone is willing to pay, it was
never intended to be, but when you
stake your reputation on a product that is designed and constructed
to perform at a level that most people have never imagined,
I want to make sure that it does.
to 350-watt Mono
Can't afford a pair of WT350 mono amps? Start now with
one WT100 stereo amp. Later on, you can get a second one. Inside
each amp is a switch that allows you to set the amp up as a mono-bridge
amp with 350 watts of power.
Match Your System
amplifiers are available in two levels
of sensitivity to best match your system needs. A brief
explanation follows, but we recommend that you discuss your
amplifier needs with us so we can help you decide which sensitivity
level is best match for your system.
LS (low sensitivity) version uses a pair of 6SN7 octal-based
triode tubes. It is ultra-linear and ultra-quiet. Because
of its quietness, this version is ideal for high-sensitivity
speakers. The high signal drive required by this amplifier
makes it an ideal match with tube preamps,
which normally can provide far greater output levels than
solid-state preamps. If your preamp
is not capable of putting out at least 4 volts rms (12 volts
peak-to-peak, check with the manufacturer) you should use
the HS version.
||Low-sensitivity for tube preamps
HS (high-sensitivity) version is suited
for systems with solid-state preamps or with passive preamps.
It only requires 1.2 volts (rms) of input drive to reach full
output power. Suited for all speakers, the HS version uses
dual octal-based 6SL7 triode tubes to provide normal sensitivity.
||High-sensitivity for solid-state or passive
It is not possible to change the sensitivity of the amplifier
simply by changing the tube type. The high and low sensitivity
versions are built with different values of anode and
cathode resistors, required to match the tube type.
XL Stereo Amplifiers Model
Numbers and Pricing:
- Low Sensitivity Version. Available with personal onsite voicing and setup in your sound room by Michael Elliott.
$10,299 with onsite voicing, or $8,800 without.
Get 20% off this price if ordered with a WV preamp!
- High Sensitivity Version.Available with personal onsite voicing and setup in your sound room by Michael Elliott. Some
||$10,299 with onsite voicing, or $8,800 without.
Get 20% off this price if ordered with a WV preamp!
- High Sensitivity Version.
of amplifiers are export versions of the
XL series that have to
meet even more stringent electrical and sonic standards required
in certain overseas markets. This is not a product normally
intended for the U.S. market at all, but since the Internet
reaches beyond our shores I must show it here as well. XM-class
models are built on a per-order basis only. Contact Aria for
more information. Price includes personal setup in your sound
room by Michael Elliott. Some