Wisdom Sage S90i, Owner'S Manual

Page 1: ...Owner s Manual Sage S90i In Wall Subwoofer ...

Page 2: ...annel 10 Surround Speakers 11 Subwoofer Placement 11 Room Treatment 12 Professional Acoustic Design 12 References 13 Installing the S90i in a Wall 14 Installing the S90i in the Ceiling 16 Tips and Ideas 24 Black out the HVAC and snorkel 25 Limited access situations 26 Installing under the floor 26 Making the S90i Connections 28 Optimizing the System 29 North American Warranty 30 Standard Warranty ...

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Page 4: ...nderstand the system s full capabilities Please register your system To register your warranty please complete the form at the following address on the internet http www wisdomaudio com registration Doing so will ensure that there will be no delays should you ever require war ranty service If accessing the internet is inconvenient you can send a copy of the sales receipt showing your name address ...

Page 5: ...y old idea a Regenerative Trans mission Line subwoofer or RTL sub for short All dynamic drivers develop energy on both sides of the diaphragm with the rear energy being 180 out of phase with the front energy If you allow the driver to operate in free space no enclosure the front and rear energies largely cancel each other out especially at low frequencies In our Regenerative Transmission Line subw...

Page 6: ...woofer is easy for two people but it is unwise for a single person to attempt doing so Do not attempt to lift your S90i while bending or twisting from the waist Use your legs for lifting not your back Always stand as straight as possible and keep the S90i close to your body to reduce strain on your back The S90i is fully assembled on delivery The front surface has a smooth resin coated paper finis...

Page 7: ... Rooms with unusually tall baseboards may require the S90i to be mounted somewhat higher still The grille itself is friction fit into its frame using rubber channels on its edges Removing the grille exposes the black service panel which only needs to be removed in the unlikely case that one or more drivers needed to be replaced after installation in the wall The Regenerative Transmission Line open...

Page 8: ...8 The serial number for the S90i can also be found on the inside of the opening for the Regenerative Transmission Line ...

Page 9: ...taying with rectangular rooms whose dimensions do not share common divisors Thus a room with dimensions of 8 by 16 by 20 would be quite poor since the dimensions are all divisible by a length of 4 and 16 is also a multiple of 8 By contrast a room whose dimensions are 9 by 16 by 29 would be much better since none of the dimensions are mathematically related to one another There are infinite variati...

Page 10: ...e floating in space ex actly halfway between the speakers Goal 2 Smooth consistent bass Oft cited rules of thumb for smoother bass reproduction include both placing the speakers at different distances from the side walls vs the wall behind them and placing them at odd fractions of the room s dimensions e g fractions in which the denominator is an odd number like 1 3 2 5 2 7 etc But nothing replace...

Page 11: ...seen from above In a 7 x system the surround speakers should be closer to 90 from the center speaker and the surround back speakers should be at ap proximately 135 150 from the center speaker This conforms to industry stan dards and ensures that you hear what was intended from a spatial placement point of view Too often the surround speakers are all behind the listeners cre ating a big hole in the...

Page 12: ...t the simplest case of stereo repro duction you have a minimum of twelve first reflection points in your room that deserve some attention Unfortunately it is often difficult to do much about the ceiling and floor reflec tions even though they are arguably the most destructive The minimization of these reflections is one of the strongest arguments for the tall line source loud speakers that Wisdom ...

Page 13: ...st acousticians Find someone who specializes in and has a great deal of experi ence designing home studios home theaters and the like Your Wisdom Audio dealer may be such a person failing that he she can help you find such a pro fessional References Books on Acoustics The Master Handbook of Acoustics F Alton Everest TAB Books Sound Reproduction The Acoustics and Psychoacoustics of Loudspeakers and...

Page 14: ...mance based As seen from above a cross sectional view of the S90i as mounted in a typical 2 x 6 stud wall looks like this The front board of the S90i is made from 5 8 MDO plywood which presents a smooth paintable finish surface similar to dry wall It can be butted up against the 5 8 dry wall taped and spackled and painted like any other section of wall It will also readily accept skim coating if t...

Page 15: ...ion is to solder the wires together and then insulate the connection with shrink tubing If this is impractical use appropriately sized wire nuts and wrap the wire nut connections in black electrical tape to prevent any chance of the connec tion vibrating loose 3 Stand the S90i in the stud bay dress the wires so that they cannot rattle and screw the front board to the studs with drywall screws The ...

Page 16: ...be forced against an irregular surface If the studs are curved or warped in an installation the installer must insert shims between the S90 front panel and the stud surfaces to avoid such stresses as would be the case for any in wall loudspeaker All the following photos are illustrative of how the speakers would be installed in an attic space venting into the room below Installing it in the floor ...

Page 17: ...d to the final length and shape 8 dry wall screws 2 Place the ceiling flange assembly in the intended mounting location and use it as a template for marking the vent into the room Cut the drywall with a keyhole saw or similar tool 3 Screw the ceiling flange in its location ...

Page 18: ...e S90i flush with the corner of the en closure and screw into place Take care to ensure that there are no air leaks around the edges of the flange assembly You want all the low frequency energy transferred through the snorkel into the room ...

Page 19: ...htly taller than is needed for the joists in your installation If your attic has joists that are smaller than 2 x 8 you may need to trim the alu minum to a more suitable length using a utility knife Caution Be certain that the snorkel can be compressed somewhat before proceeding to the next step Once it is fully compressed any further pressure placed on it will be transferred directly to the ceili...

Page 20: ...Move the S90i into place above the snorkel and gently place its flange into the snorkel Test fit the S90i assembly to the snorkel and ceiling flange The snorkel should extend to the back edge of both flanges ...

Page 21: ...cond band clamp on the S90i flange The next step is to wrap the snorkel in the heavy Protecto Wrap which dramati cally deadens and stiffens the snorkel and minimizes any leakage of bass into the attic and adjacent spaces ...

Page 22: ...t position being careful not to change the length of the snorkel in the process This is a critical step as it locks the duct into its final position greatly stiffening the assembly and ensuring that the bass energy is vented into the room rather than leaked into adjacent attic space Once the snorkel is wrapped it is no longer capable to being adjusted for length ...

Page 23: ...ge that extends around the edge of the face of the S90i Fasteners should not be driven into the S90i else where as there are locations in which doing so could cause permanent damage and or compromise its performance 10 Finally attach the HVAC grille by screwing it in place The screws used on this grille will extend into the ceiling flange s wooden plate making an extremely secure cover ...

Page 24: ...24 Tips and Ideas It is impossible to cover every possible installation application of this versatile product But here are a couple ideas to get you thinking ...

Page 25: ... paint the area around the vent black In the process paint the inside of the aluminum duct black as well Several light coats will work better than trying to do everything in one heavy coat Install the HVAC grille over the blackened area You may want to pad the inside edges of the grille with foam weather stripping to minimize any possibility of a rattle developing over time ...

Page 26: ...m The same basic process applies and yields excellent results as long as you are careful to wrap the expanding duct tightly Installing under the floor The same basic process can be used to install an S90i in a basement or crawl space venting the low frequencies up through the floor In this case you should replace the standard HVAC grille with a heavier grate that is designed to with stand traffic ...

Page 27: ... aesthetic reasons many such grille have adjustable louvres to direct the flow of air These should be either removed or frozen in place with liberal amounts of glue in order to avoid rattles A lot of air will be flowing through these grilles in both directions Anything that can rattle will rattle ...

Page 28: ...ing from your source component s to a preamp processor that provides bass management to create the subwoofer channel s and then on to the SC 1 following the SC 1 the signal for the sub woofer is sent to a high quality amplifier such as the Wisdom Audio SA series amplifiers A pigtail connection is provided at one end of the S90i Since the S90i fills a standard 2 x 6 stud bay the simplest thing is t...

Page 29: ...imized rather than optimizing only one location at the expense of others 3 Select an appropriate target curve Music and movies generally need slightly different targets curves for the best results Your dealer can select the appropriate curve for different ap plications and the SC 1 can easily switch between them 4 Calculate the necessary room correction The software then uses the power of the PC t...

Page 30: ...al tered or installed and calibrated by anyone other than an authorized Wisdom Audio dealer Any Wisdom Audio loudspeaker not performing satisfactorily may be returned to the factory for evaluation Return authorization must first be obtained by either calling or writing the factory prior to shipping the component The fac tory will pay for return shipping charges only in the event that the loudspeak...

Page 31: ...ice needs expediently Important Return authorization must be obtained from Wisdom Audio s Service Department BEFORE a unit is shipped for service It is extremely important that information about a problem be explicit and com plete A specific comprehensive description of the problem helps your dealer and the Wisdom Audio Service Department locate and repair the difficulty as quickly as possible If ...

Page 32: ...e Nominal Impedance 5Ω Sensitivity 93 dB 1w 1m Power handling peak 500W Dimensions see appropriate Dimensions drawings on next page Shipping weight 65 lbs 30 kg For more information see your Wisdom Audio dealer or contact Wisdom Audio 1572 College Parkway Suite 164 Carson City NV 89706 www wisdomaudio com information wisdomaudio com Ph 775 887 8850 Fax 775 887 8820 ...

Page 33: ...33 S90i Dimensions ...

Page 34: ...34 Notes ...

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Page 36: ... Audio Inc All rights reserved Printed in U S A Wisdom Audio 1572 College Parkway Suite 164 Carson City Nevada 89706 USA Telephone 775 887 8850 Fax 775 887 8820 WISDOM and the stylized W are registered trademarks of Wisdom Audio ...