Wisdom Sage L75 Page 28 Owner'S Manual Download | Manualshive

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Summary of Contents for Sage L75

Page 1: ...Owner s Manual Sage L75 L75m L75i Biamplified Planar Magnetic Hybrid Loudspeakers ...

Page 2: ...75 9 Attaching the bases 9 When to install spikes 9 Making the L75 Connections 11 Unpacking Installing the L75m 12 Unpacking Installing the L75i 14 Room Acoustics Placement 16 Start With the Room 16 Rigid Walls 16 Speaker Placement 17 Left Right Speakers 17 Center Channel 17 Surround Speakers 18 Subwoofer Placement 18 Room Treatment 19 Professional Acoustic Design 19 References 20 Optimizing the S...

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Page 4: ...e other manuals SC 1 SA series amplifiers to understand the system s full capabilities Your Sage L75 loudspeakers are specifically designed to avoid the compromises inherent in conventional speaker designs The active crossover and room cor rection circuitry in the SC 1 is essential to the speakers proper operation In ad dition the SA series amplifiers are specifically designed to meet the needs of...

Page 5: ...ng 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 lightweight diaphragm responds quickly to even the smallest signals yet is robust enough to handle enormous ones The fact that heat does not build up in the voice coil as it does...

Page 6: ...y By contrast the Sage L75 speakers radiate sound as a line source The sound moves into the room as an expanding cylinder rather than as an expanding sphere as though from a vertical line suspended in space Line source speakers provide two significant advantages ceiling and floor reflections are minimized resulting in greatly re duced interference letting you hear more of the speaker and less of t...

Page 7: ...icularly important given the high standards set by our planar magnetic drivers Big bass in small boxes There is an old truism in loudspeaker design that goes something like this deep bass small enclosure or high sensitivity pick two out of the three No one can cheat the laws of physics If you want deep bass from a small box you will need to make up for the small size with equalization and extra po...

Page 8: ...is such a speaker designed to use separate amplifiers for the woofer and the planar sections of each loudspeaker Since each channel of the amplifier is delivering current into its load only over a limited range of frequencies several forms of distortion are reduced as com pared to each channel handling the full range of musical information Moreover since each amplifier is direct connected to the d...

Page 9: ...m to the speaker using the four bolts found in the riser at the bottom of the speaker tower These bolts should be snug do not over tighten You will feel when firm metal to metal contact is made Do not tighten more than 1 8 of a turn beyond the point of initial snug metal to metal contact We do not recommend removing the grille on your new loudspeakers The grille is an integral part of the design m...

Page 10: ... tighten the black nuts that secure the spikes they may rattle a bit when playing music or movies This rattling can sound like speaker distortion Fortunately a quick tightening of the lock nuts on the spikes will eliminate the problem After you have determined the final locations of the L75 speakers enlist the assistance of a friend to safely tip the speaker to provide better access to the adjusta...

Page 11: ...u have already con nected the SC 1 System Controller as per the instructions found in its manual As such you should have signal coming from your source component s to a preamp processor and then on to the SC 1 following the SC 1 the signal is split into low and high sections with the low section going to one or more Wisdom Audio SA series amplifiers and the high section going to another amplifier ...

Page 12: ... back of the loudspeaker It is removed by pulling down on it relative to the end of the speaker that will be up when installed on the wall Note that for horizontal center channel speakers this means the bracket is pulled across the narrow di mension of the speaker Please note that this guide assumes the wall surface is flat If not shims must be applied to the rear of the mounting bracket so that t...

Page 13: ...the center screw at this time as well 6 Using assistance while holding the speaker away from the wall connect both high and low pass speaker cables to the rear mounted connectors Pay close attention to connect the correct wires high and low pass to their respective speaker connectors while attending to proper polarity 7 Fix the speaker into the mounting bracket end clips and press down until you h...

Page 14: ...s module the planar magnetic midrange treble module Note that there is an up and a down to the Uni Grip for the L75i due to differences in the pattern of threaded holes used to attach the planar and woofer speaker modules to the frame of the Uni Grip itself 1 Determine the area for the speaker installation and locate the cutout guide using push pins to secure it in place Ensure that the template i...

Page 15: ...ounted later after all the paint is dry 8 Using assistance to hold the speaker modules away from the wall connect both high and low pass speaker cables to the two con nectors at the ends of the back boxes paying attention to assign the correct band pass and polarity to their respective speaker connectors 9 Insert the speaker back box assembly into the Uni Grip frame and attach using the supplied A...

Page 16: ... 20 would be quite poor since the dimensions are all divisible by a length of 4 and 16 is also 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 you have the flexibility to choose or modify your room dimensions to avoid such problems do so Eith...

Page 17: ...h 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 Wisdom ...

Page 18: ...ndustry 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 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 ...

Page 19: ...e 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 speaker is a firs...

Page 20: ...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...

Page 21: ...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...

Page 22: ...for the cloth to be wet merely damp is better In the case of stubborn or grimy substances that do not come off the textured surfaces easily use a clean plain pink eraser such as you might give your child for school work to remove the dirt Then finish with a soft cloth lightly damp ened with alcohol as outlined above Never attempt to clean the drivers themselves Caution Do not touch the surface of ...

Page 23: ...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 loudspeaker Neither this warranty nor any other warranty express or implied including any implied warranties of merchantability or fitness shall extend beyond the warranty period No respon sibility is assumed for an...

Page 24: ...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 ...

Page 25: ...ction 95 dB 1w 1m Power handling peak 1000w Dimensions see appropriate Dimensions drawings on next several pages Shipping weight each L75 tower 79 lbs 36 kg Shipping weight a pair of L75 bases 30 lbs 14 kg Shipping weight each L75m 69 lbs 31 kg Shipping weight each L75i 65 lbs 29 kg For more information see your Wisdom Audio dealer or contact Wisdom Audio 1572 College Parkway Suite 164 Carson City...

Page 26: ...26 L75 Dimensions ...

Page 27: ...27 L75m Dimensions ...

Page 28: ...28 L75i Dimensions ...

Page 29: ...29 Notes ...

Page 30: ...m 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 ...

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