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17

Care & Maintenance

To remove dust from the cabinet of your LS4i, use a feather duster or a lint-free
soft cloth. To remove stubborn dirt and fingerprints, we recommend isopropyl
alcohol and a soft cloth. Lightly dampen the cloth with alcohol first and then
clean the surface of the LS4i with the cloth. Do not use excessive amounts of
alcohol—there is no need for the cloth to be wet; merely damp is better.

Never attempt to clean the drivers themselves.

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Содержание LS3i

Страница 1: ...Owner s Manual Wisdom Series LS3i LS4i Biamplified Planar Magnetic Loudspeaker ...

Страница 2: ...e LS3i LS4i 9 Double stacking 10 Room Acoustics Placement 11 Start With the Room 11 Rigid Walls 11 Speaker Placement 12 Left Right Speakers 12 Center Channel 12 Surround Speakers 13 Subwoofer Placement 13 Room Treatment 14 Professional Acoustic Design 14 References 15 Optimizing the System 16 Care Maintenance 17 North American Warranty 18 Standard Warranty 18 Obtaining Service 19 LS4i Specificatio...

Страница 3: ......

Страница 4: ...stems We know that the extra effort particularly as regards setting up the SC 1 System Controller yields vastly im proved results About this manual This manual focuses on the loudspeakers themselves In order to fully under stand the system we recommend you also review the manual for the SC 1 System Controller without which these speakers will not perform correctly While we expect your local Wisdom...

Страница 5: ...ded by powerful magnets behind and in front of the film The ratio of available force to the moving mass is huge which means that the diaphragm does exactly what it is told nothing more nothing less Free from compression One of the most remarkable things about the sound of well designed planar magnetic speakers is their lack of thermal or dynamic compression There are several reasons for this The l...

Страница 6: ...und into the room as imperfect point sources This means that most of the energy they put into the room expands as an ever enlarging sphere as though emerging from a single point in space This results in a multitude of reflections from the ceiling and floor that can degrade sound quality By contrast the Wisdom Series LS4i speakers radiate sound as a line source The sound moves into the room as an e...

Страница 7: ... of speaker wires for each loudspeaker Biamplification makes use of two channels of amplification to drive different portions of the audio spectrum The most common instance of bi amping today is in home theater applications wherein a dedicated subwoofer handles the deepest bass while the remaining audible range is handled by the various front and surround speakers But you can also biamplify other ...

Страница 8: ...cated room correction to minimize distortions introduced by the room itself The goal is simple to achieve consistently excellent results in the real world of the owner s home After all that s all that really matters ...

Страница 9: ...he speaker The loudspeaker is shipped in a specially designed wooden crate that both protects it during shipment and facilitates its installation on the wall When you remove the top of the crate the rear of the speaker will be exposed These parts are packed in a wood crate that is designed both to protect your Wisdom Series loudspeaker and to make un crating it as safe and simple as possible A Tor...

Страница 10: ...r it We usually find it easier to do after the speaker is securely in place The connections are made under a re movable cover plate at the bottom of the speaker Double stacking The top of the LS3i and LS4i speaker features an interlocking key system for registration of two speakers that are stacked with each other to form an even taller line source By flipping the upper speaker upside down the pro...

Страница 11: ...lar 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 variations on this idea If ...

Страница 12: ...ude 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 replaces your experience in your room combined with your dealer s experi ence in a variety of rooms Playing pink noise through the woofer sections of your ...

Страница 13: ...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 soundfield between the front and the back L R C Sub 1 Sub 2 Ls Rs Rb Lb 22 30 90 110 135 150 0 a 7 2 channel system layout One possible exception to these guidelines if you have a THX certified pro cessor and are using the THX A...

Страница 14: ...ions is one of the strongest arguments for the tall line source loud speakers that Wisdom Audio builds This leaves you with eight first reflections that you should consider minimizing somehow These points are easily found by having an assistant slide a small mirror along the four walls of the room while you sit at the listening position Any place on the wall where you can see a re flection of any ...

Страница 15: ...g 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 Rooms by Dr Floyd Toole Focal Press Suppliers of Acoustic Treatments Acoustic Innovations http www acousticinnovations com Acoustic Sciences Corporation http www acousticsciences com Ec...

Страница 16: ...listening area is optimized rather than optimizing only one location at the expense of others 3 Select an appropriate target Large and small rooms have intrinsically different traits The room correc tion software allows for these characteristics to be taken into account for superior results 4 Calculate the necessary room correction The software then uses the power of the PC to calculate the correc...

Страница 17: ...tubborn dirt and fingerprints we recommend isopropyl alcohol and a soft cloth Lightly dampen the cloth with alcohol first and then clean the surface of the LS4i with the cloth Do not use excessive amounts of alcohol there is no need for the cloth to be wet merely damp is better Never attempt to clean the drivers themselves ...

Страница 18: ...ned 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 loudspeaker is found to be defective as mentioned above There are other stipulations that may apply to shipping charges There is no other express warranty on this loudspeak...

Страница 19: ...ir the difficulty as quickly as possible A copy of the original bill of sale will serve to verify warranty status Please in clude it with the unit when it is brought in for warranty service Warning All returned units must be packaged in their original packaging and the proper return authorization numbers must be marked on the outer carton for identification Shipping the unit in improper packaging ...

Страница 20: ...ction 4 25Ω resistive Sensitivity 100 dB 2 83 V 1m Power handling peak 5000w Dimensions see Dimensions drawings Dimensions of LS4i shipping crate 92 x 31 x 23 233 cm x 79 cm x 59 cm Shipping weight 425 lbs 193 kg Net weight 250 lbs 114 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 wis...

Страница 21: ...n 5 6Ω resistive Sensitivity 98 dB 2 83 V 1m Power handling peak 5000w Dimensions see Dimensions drawings Dimensions of LS3i shipping crate 72 x 31 x 23 183 cm x 79 cm x 59 cm LS3i Shipping weight 345 lbs 157 kg LS3i Net weight 190 lbs 86 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 ...

Страница 22: ...22 LS4i Dimensions ...

Страница 23: ...23 LS3i Dimensions ...

Страница 24: ...24 Notes ...

Страница 25: ...25 Notes ...

Страница 26: ... 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 www wisdomaudio com WISDOM and the stylized W are registered trademarks of Wisdom Audio ...

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