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Sophia Series 2 Owner’s Manual
Sophia SerieS 2 owner’SManual
2
Wilson Audio Specialties
Wilson Audio®is a registered trademark of Wilson Audio Specialties, Inc.
Sophia®, WATT/Puppy®, MAXX®, Duette®, X-1 Grand SLAMM®, and Alexandria®are
registered trademarks of Wilson Audio Specialties, Inc.
WilsonGloss™, Duette™, WATCH Center™, WATCH Surround™, and WATCH Dog™
are trademarks of Wilson Audio Specialties, Inc.
This manual was produced by the Wilson Audio Engineering and the Sales and Mar-
keting Department. The information contained herein is subject to change without
notice. Current Revision 3.0. If you are in need of a more recent manual, please
contact your dealer.
The information in this manual is the sole property of Wilson Audio Specialties, Inc.
Any reproduction, in whole or in part, without the express written permission of
Wilson Audio Specialties, Inc., is prohibited. No material contained herein may be
transmitted in any form or by any means, electronic or mechanical, for any purpose,
without the express written permission of Wilson Audio Specialties, Inc.
2
3
Wilson Audio Specialties
Table o f ConTenTS
3
Contents
Section 1 – introduction ������������������������������������������������� 7
Section 1�1 – Sophia®SerieS 2 introduction ������������������� 9
Ne w TweeTer�������������������������������������������������������� 9
revised Crossover ����������������������������������������������� 10
reCessed diffraCTioN Pa d aNd PiN-sTyle Grill ������������� 10
Section 2 – inYour room ���������������������������������������������� 13
Section 2�1 - th e WilSon audio Setup procedure ������������ 15
fiNal lisTeNiNG room seTuP (voiCiNG)������������������������� 15
ZoNe o f NeuTraliTy ����������������������������������������������� 15
Section 2�2 - room reflectionS ���������������������������������� 17
slaP eCho���������������������������������������������������������� 17
sTaNdiNG wa v e s ��������������������������������������������������� 20
Comb filTer effeCT����������������������������������������������� 21
Section 2�3 - reSonanceS������������������������������������������� 22
sTruCTural resoNaNCe������������������������������������������� 22
volume resoNaNCe ������������������������������������������������ 22
Section 2�4 - Your room ������������������������������������������� 23
room shaPes ������������������������������������������������������ 23
soPhia series 2 iN adediCaTed home TheaTer ��������������� 25
sPeaker PlaCemeNT versus lisTeNiNG PosiTioN �������������� 25
sPeaker orieNTaTioN ��������������������������������������������� 26
summary ������������������������������������������������������������ 27
Section 3 – uncrating Your SophiaS ��������������������������������� 29
Section 3�1 - uncrating the Sophia SerieS 2 ������������������ 31
initial check����������������������������������������������������������� 31
Sophia SerieS 2 owner’SManual
4
Wilson Audio Specialties
uNCraTiNG The soPhia �������������������������������������������� 31
Section 3�2 - cr a t e content checkliSt ������������������������� 32
Section 4 – final Setup ������������������������������������������������� 35
Section 4�1 – final Setup ������������������������������������������ 37
PreParaTioN �������������������������������������������������������� 37
Section 4�2 - Sophia SpikeS ���������������������������������������� 37
assembly ����������������������������������������������������������� 37
leveliNG The soPhia series 2����������������������������������� 38
Section 4�3 - Wiring attachmentS �������������������������������� 39
Section 4�4 - removing the protective film ������������������� 39
Section 5 – care o f the Sophia ��������������������������������������� 43
Section 5�1 – care o f the finiSh ��������������������������������� 45
dusTiNG The soPhias ��������������������������������������������� 45
Care o f The Grilles���������������������������������������������� 46
break-iN Period ��������������������������������������������������� 46
Section 5�2 – encloSure technologY ���������������������������� 46
maTerials ���������������������������������������������������������� 46
adhesive ������������������������������������������������������������ 47
Section 5�3 – depth o f deSign ������������������������������������ 47
Section 6 – troubleShooting ������������������������������������������ 49
Section 7 – SYStem SpecificationS ����������������������������������� 55
Sophia dimenSionS ���������������������������������������������������� 58
Section 8 – WarrantY information ����������������������������������� 61
Section 8�1 – WarrantY information ����������������������������� 63
limiTed warraNTy ������������������������������������������������� 63
5
Wilson Audio Specialties
Table o f ConTenTS
CoNdiTioNs ��������������������������������������������������������� 63
remedy�������������������������������������������������������������� 64
warraNTy limiTed T o oriGiNal PurChaser �������������������� 64
demoNsTraTioN equiPmeNT ��������������������������������������� 65
misCellaNeous����������������������������������������������������� 65
Wilson Audio Specialties
Section 1 – Introduction
Sophia SerieS 2 owner’SManual
8
Wilson Audio Specialties
9
Wilson Audio Specialties
SeCTion 1 – inTroduCTion
9
Section 1.1 – Sophia®Series 2 Introduction
Since its initial release, Sophia has changed the way many think of high-end loud-
speakers. Wilson proved that qualities we once thought contradictory - high resolution
with musicality; prodigious bass in a compact, floor standing package; dynamic alacrity
with an easy to drive load; extraordinary musical experience with inexpensive electron-
ics - could be married in one, elegant package. In its short history, Sophia has become
a true classic, beloved for musical beauty.
It is no small thing to improve upon something so special as Sophia. The risk is
that some elusive ingredient key to her magic would give way in the process of pushing
another area of performance. The design team knew that in developing Alexandria X-2,
MAXX Series 2, and the new Duette they had uncovered new technologies that, if ap-
plied to Sophia, would improve her performance. So, with a protective eye on preserv-
ing those qualities that imbued Sophia with intrinsic grandeur, Wilson Audio set out to
improve on Sophia’s strengths through an application of these new technologies.
Wilson Audio introduces the Sophia Series 2.
New Tweeter
There is some confusion in the market place as to what technical qualities are
important to musically correct high-frequency performance. While other manufacturers
blindly pursue dubious performance parameters such as ultra-wide bandwidth or gra-
tuitously exotic materials, Wilson continues to focus on those technologies that truly
contribute to better performance. The MAXX Series 2 featured new proprietary tweeter
technology that significantly reduced spurious noise artifacts generated in the rear of
the tweeter. The result was high frequencies with unprecedented transparency and reso-
lution combined with a much lower noise floor. This same technology has been applied
to the new Sophia Series 2 tweeter. Sweet, delicate highs were already a hallmark of
Sophia. The Series 2 tweeter builds on these strengths with greater air, sweetness, reso-
Sophia SerieS 2 owner’SManual
10
Wilson Audio Specialties
lution, and an utterly grainless sense of purity. Highs emerge from a silent, black back-
ground.
Revised Crossover
David Wilson and the Wilson engineering team are ever searching for the sources
of time-domain distortion. During the development of Alexandria, Wilson discovered
that the interaction between the high and low pass filters created propagation delay
noise they dubbed “crossover jitter.” Dave and the engineers created crossover strate-
gies and topologies that reduced this deleterious interaction. The reduction in distor-
tion-noise allowed Dave and the design team to hear into the loudspeaker and detect
and parse out problems previously obscured by the noise. Thus the breakthrough not
only improved the areas of performance directly related to the anti-jitter technology,
but also allowed enhancements to be made in other areas of the loudspeaker as well.
This process was applied during the development of MAXX Series 2, and now has been
empployed in the Sopia Series 2. In the Sophia Series 2, low-level details, previously
obscured by noise, now shine forth from a black background. Midrange beauty, clarity,
and musicality, already a strong point of Sophia, are noticeably better in the Series 2.
Instrument texture and timbre are more convincingly rendered and complete.
Recessed Diffraction Pad and Pin-Style Grill
Introduced in the Alexandria and subsequently employed in the MAXX Series 2,
the austenitic stainless steel pin system ensures non-resonant and reliable grill attach-
ment. The diffraction pad, which previously sat atop Sophia’s baffle, is now recessed
flush to the façade. Problems of diffraction pad detachment are nearly eliminated.
Sophia’s shape is enhanced, taking on a more finely sculpted and integrated profile.
In designing the original Sophia, Wilson Audio determined to introduce not mere-
ly a more accessible loudspeaker, but the best compact single cabinet loudspeaker we
could build, and the best loudspeaker in its price range, period. To improve upon that
10