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•   It adds harshness to the upper midrange and treble by storing time-domain 

smearing energy. 

•  It destroys the delicate phase relationships, which help to establish an ac

-

curate soundstage.   

Slap echo (see Figure 1) is a common acoustical problem in the typical domestic 

listening room because most of these rooms have walls with a hard, reflective nature, 

only occasionally interrupted by curtains, wall art, or drapes.  The best (but least prac-

tical) solution to eliminate slap echo is nonparallel walls.  This is because, rather than 

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Summary of Contents for Sophia Series 2

Page 1: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l...

Page 2: ...eer in g an d t h e Sales and Ma r ke ti ng Department The information co n t ain ed h erein is su bject t o ch an g e w ithout n oti ce Current Revision 3 0 If you are in n eed o f a mo re recen t m...

Page 3: ...Z o n e o f N e u t r a l i t y 1 5 S e c t i o n 2 2 R o o m R e f l e c t i o n s 1 7 S l a p E c h o 1 7 S t a n d i ng W a v e s 2 0 C o m b F i l t e r E f f e ct 2 1 S e c t i o n 2 3 R e s o n...

Page 4: ...m o v i n g t h e P r o t e c t i v e F i l m 3 9 S e c t i o n 5 C a r e o f t h e S o p h i a 4 3 S e c t i o n 5 1 C a r e o f t h e F i n i s h 4 5 D u s t i ng t h e S o p h i a s 4 5 C a r e o f...

Page 5: ...i a l t i e s T a b l e o f C o n t e n ts C o n d i t i o n s 6 3 R e m e d y 6 4 W a r r a nt y L i m i t e d t o O r i g i n a l P u r c h a s e r 6 4 D e m o n s t r a t i o n E q u i p m e nt 6 5...

Page 6: ...Wi l s o n A u d i o S p e c i a l t i e s...

Page 7: ...S e c t i o n 1 I n t r o d u c t i o n...

Page 8: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 8 Wi l s o n A u d i o S p e c i a l t i e s...

Page 9: ...a 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 appl...

Page 10: ...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 n...

Page 11: ...s was a daunting task Wilson Audio s engineering team accomplished its goal and with Sophia Series 2 has again raised the bar in terms of performance value and sheer beauty S e ct i o n 1 I n t r o d...

Page 12: ...Wi l s o n A u d i o S p e c i a l t i e s 12 Wi l s o n A u d i o S p e c i a l t i e s...

Page 13: ...S e c t i o n 2 I n Yo u r R o o m...

Page 14: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 14 Wi l s o n A u d i o S p e c i a l t i e s...

Page 15: ...ctions with loudspeakers While we will also outline some detailed suggestions on the setup of the Sophias we strongly suggest that you have your local Wilson Audio dealer perform the final speaker voi...

Page 16: ...his location Although it will vary from room to room the zone in most rooms begins between two and a half to three feet from the rear wall 4 Continue to walk slowly away from the rear wall After some...

Page 17: ...er you complete this proce dure for the other loudspeaker you will now have two rectangles one on the floor on either side of the room Section 2 2 Room Reflections Note The following section contains...

Page 18: ...ips which help to establish an ac curate soundstage Slap echo see Figure 1 is a common acoustical problem in the typical domestic listening room because most of these rooms have walls with a hard refl...

Page 19: ...oms Sound absorbent materials such as described above will alter the tonal characteristic of the room by making it sound deader less bright and alive and quieter These changes usually make the room mo...

Page 20: ...l balance Resolution of low level detail Soundstaging Standing waves are more difficult to correct than slap echo because they tend to occur at a lower frequency Absorbent materials such as Illbruck S...

Page 21: ...e such as a loud speaker is directed toward a microphone or listener from a distance The first sound to reach the microphone is the direct sound followed by a delayed reflected sound At certain freque...

Page 22: ...exhibit mid bass boom when struck The loudspeaker playing in the room also ex cites these resonances To give you an idea of what the perfect wall would sound like imagine rapping your hand against the...

Page 23: ...equency control Section 2 4 Your Room Room Shapes Standing waves are pressure waves propagated by the interaction of sound and op posing parallel walls This interaction creates patterns of low and hig...

Page 24: ...position for spatial placement and midrange resolution would be on the longer walls Bass response would be reinforced by speaker placement on the short walls In many cases L shaped rooms see Figure 2...

Page 25: ...This approach will also provide the best overall sound for the greatest number of seats Speaker Placement Versus Listening Position The location of your listening position is as important as the caref...

Page 26: ...ack wall to place the speakers The closer a loudspeaker is to the back wall the more pronounced the low bass energy and centering of the image will be However this comes at a defi nite reduction in st...

Page 27: ...ld be toed in toward the listener preferably so that the listener at his seated position can barely see the surface of the inner side of the Sophia as he she faces the speaker It is recommended that a...

Page 28: ...Wi l s o n A u d i o S p e c i a l t i e s...

Page 29: ...S e c t i o n 3 U n c r a t i n g Yo u r S o p h i a s...

Page 30: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 30 Wi l s o n A u d i o S p e c i a l t i e s 30...

Page 31: ...c Screwdriver Phillips head drive bit Masking tape for use in speaker setup Uncrating the Sophia A minimum of two strong adults is required to set up the Sophias 1 With the crate lid facing up unscrew...

Page 32: ...3 2 Crate Content Checklist Now that you have unpacked your Sophia Series 2 you can inventory all the addi tional items in the crates 1 Owner s Manual 1 Warranty Registration 2 Upper Pin Style Grille...

Page 33: ...33 Wi l s o n A u d i o S p e c i a l t i e s 1 3 16 Long Arm Allen Wrench 1 Polishing Cloth S e ct i o n 3 U n c r a t i n g Y o u r S o p h i a s 33 Wi l s o n A u d i o S p e c i a l t i e s...

Page 34: ...Wi l s o n A u d i o S p e c i a l t i e s Wi l s o n A u d i o S p e c i a l t i e s...

Page 35: ...S e c t i o n 4 F i n a l S e t u p...

Page 36: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 36 Wi l s o n A u d i o S p e c i a l t i e s 36 Wi l s o n A u d i o S p e c i a l t i e s 36 Wi l s o n A u d i o S p e c i a l t i e s...

Page 37: ...assemblies are attached to the bottom of your Sophias the set up and fine tuning of your loudspeaker should be com pleted Before spiking your Sophias use masking tape to carefully mark their location...

Page 38: ...t tighten the nut at this time 4 Repeat steps 1 through 4 with the other spikes Leveling the Sophia Series 2 Place a level on the left to right oriented axis in the flat area atop the So phia If it is...

Page 39: ...ly rock it back and forth This will identify the spike that is out of level from the other three If there is movement lengthen the appropriate spike until the Sophia sits solidly on the floor Once the...

Page 40: ...surface is room temperature before removing the pro tective film Removing the protective film when the speaker surface is cold can damage the paint surface 2 Slowly remove the film from the top down l...

Page 41: ...41 Wi l s o n A u d i o S p e c i a l t i e s 41 Wi l s o n A u d i o S p e c i a l t i e s...

Page 42: ...42 Wi l s o n A u d i o S p e c i a l t i e s...

Page 43: ...S e c t i o n 5 C a r e o f t h e S o p h i a...

Page 44: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 44 Wi l s o n A u d i o S p e c i a l t i e s 44 Wi l s o n A u d i o S p e c i a l t i e s...

Page 45: ...speakers Blow off all loose dust Using the special dust cloth as a brush gently whisk off any remaining loose dust Shake out the dust cloth Dust the finish using linear motions in one direction paral...

Page 46: ...ille cloth samples or to order replacement grilles for your Sophias Break in Period All audio equipment will sound best after its components have been broken in for some period of use Wilson Audio bre...

Page 47: ...e of a loudspeaker Correct modulus of elasticity coefficient of thermal expansion and natural frequency response are just a few of the important ele ments of adhesives A highly cross linked thermo set...

Page 48: ...ed by the climatic conditions anywhere in the world Finally like all Wilson products the Sophia is hand crafted with meticulous attention to detail with an unwavering commitment to excellence Thus the...

Page 49: ...S e c t i o n 6 T r o u b l e s h o o t i n g...

Page 50: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 50 Wi l s o n A u d i o S p e c i a l t i e s...

Page 51: ...av e a d r i v e r t h a t i s n o t o p e r a t i n g c o r r e c t l y I f y o u f i n d a d r i v e r t h a t i s s i l e n t p l e a s e g o t o t h e D r i v e r O u t s e c t i o n o f t h i s t...

Page 52: ...n c e P l u g y o u r a m p l i f i e r i n t o t h e w a l l a n d t u r n i t o n L i s t e n t o t h e c h a n n e l a t a l o w l e v e l Th e d r i v e r s h o u l d n o w b e o p e r a t i n g c...

Page 53: ...o n t i n u e t o t h e n e x t s t e p Tu r n t h e a m p l i f i e r o f f a n d d i s c o n n e c t i t f r o m t h e AC w a l l o u t l e t D i s c o n n e c t t h e s p e a k e r c a b l e l e a...

Page 54: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 54 Wi l s o n A u d i o S p e c i a l t i e s...

Page 55: ...S e c t i o n 7 S y s t e m S p e c i f i c a t i o n s...

Page 56: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 56 Wi l s o n A u d i o S p e c i a l t i e s...

Page 57: ...ith Spikes System Weight Per Channel System Shipping Weight approx Rear Ported One 10 inch 25 4 cm aluminum cone One 1 inch 2 54 cm inverted titanium dome One 7 inch 17 78 cm 89 dB 2 83 volts at 1 met...

Page 58: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 58 Wi l s o n A u d i o S p e c i a l t i e s Sophia Dimensions...

Page 59: ...59 Wi l s o n A u d i o S p e c i a l t i e s S e ct i o n 7 S yst e m S p e c i f i c a t i o n s Figure 4 Sophia Impedance Curve...

Page 60: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 60 Wi l s o n A u d i o S p e c i a l t i e s 60 Wi l s o n A u d i o S p e c i a l t i e s...

Page 61: ...S e c t i o n 8 Wa r r a n t y I n f o r m a t i o n...

Page 62: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 62 Wi l s o n A u d i o S p e c i a l t i e s 62...

Page 63: ...roduct to the customer FAILURE TO COMPLY WITH EITHER REQUIREMENT NO 1 OR REQUIREMENT NO 2 WILL RESULT IN THE WARRANTY PERIOD BEING LIMITED TO A PERIOD OF 90 DAYS ONLY Conditions This Limited Warranty...

Page 64: ...Audio Dealer within the Warranty Period for service or repair of the product without charge for parts or labor which service or repair at the Dealer s option shall take place either at the location w...

Page 65: ...p for the same time peri ods as if the product had originally been bought for immediate resale to the retail cus tomer Wilson Audio products are warranted for a period of 90 days unless extended to 5...

Page 66: ...S o p h i a S e r i e s 2 O w n e r s M a n u a l 66 Wi l s o n A u d i o S p e c i a l t i e s...

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