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SAGE SERIES L75i 

 

WISDOMAUDIO.COM 

For the purposes of this manual, we will assume that you have already connected the 
Stereo/Surround 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, 
the signal output 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, which will drive the planar magnetic panels. 

Connect the outputs of your Wisdom Audio SA-series amplifier to the appropriate 
woofer sections, taking care to get both the channel assignments and the polarity 
correct. Connect the positive (+) terminals on the SA Series amplifier to the positive (+) 
terminals for the woofer on the loudspeaker; likewise, connect the negative (–) 
terminals on the amplifier and the speaker, respectively.  

Next connect the outputs of your chosen amplifier for the midrange/treble to the Sage 
L75i planar sections in a similar fashion, taking care with both channel assignments and 
polarity. 

Care and Maintenance 

To remove dust from the front of your L75i, use a feather duster or a lint-free soft cloth. 

 

To remove stubborn dirt and fingerprints from the grille, we recommend isopropyl 
alcohol and a soft cloth. Lightly dampen the cloth with alcohol first and then clean the 
grille of the L75i 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. 

 

 

 

 

 

 

 

 

CAUTION! 

Do not touch the surface of the planar magnetic drivers, under any circumstances.

 

The thin film has been carefully pre-tensioned at the factory; any subsequent contact 

can only damage it. 

 

 

Summary of Contents for Sage L75i

Page 1: ...Owner s Manual Sage L75i Bi amplified In Wall Line Source Two Way Planar Magnetic Loudspeaker ...

Page 2: ...o Sage Series L75i Speaker It is important to read this document before attempting to use this product Pay particular attention to WARNING Calls attention to a procedure practice condition or the like that if not correctly performed or adhered to could result in injury or death CAUTION Calls attention to a procedure practice condition or the like that if not correctly performed or adhered to could...

Page 3: ...hom you purchased them Between their records and ours you should be all set However please keep your sales receipt in a safe and easily found place Should you move or lose touch with your original dealer it will serve as your proof of purchase for warranty purposes Overview Your Sage Series L75i loudspeakers take advantage of several critical technologies to deliver a level of performance that has...

Page 4: ...nt comes along any heat that is generated is immediately dissipated This compares quite favorably to other designs in which the voice coil is buried inside a massive piece of metal where the heat has effectively no place to go The excellent heat dissipation of these drivers makes them remarkably reliable Planar magnetic speakers can handle a great deal of power without undue stress or audible stra...

Page 5: ...ures as an additional spring to help them behave properly Technically this approach is known as an infinite baffle design In practice the volume of air behind the speaker does not have to be infinite of course It just needs to be large enough to not act like an acoustic spring Recommended and minimum enclosure volumes for the speaker are listed in the Specifications section and repeated on the Dim...

Page 6: ... highly desirable line source behavior it is essential to have a tall and slim driver Simply stacking multiple cone dome high frequency drivers does not create a proper line source Instead it creates a series of point sources which end up interfering with each other With Wisdom Audio s planar magnetic technology it becomes possible to have drivers that are extremely tall and slim Because of this s...

Page 7: ...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 pushpins to secure it in place Ensure that the template is plumb using a bubble level or similar Note Make certain that there are no studs plumbing or electrical ...

Page 8: ...len head screws and 3 32 drill bit Do not over torque or strip these screws After unpacking your L75i keep all packing materials for future transport If you need to ship your L75i only the original purpose designed shipping carton is acceptable Any other method of shipping this product runs a significant risk of damage to the L75i damage that would not be covered by the warranty If you lose your p...

Page 9: ...ls for the woofer on the loudspeaker likewise connect the negative terminals on the amplifier and the speaker respectively Next connect the outputs of your chosen amplifier for the midrange treble to the Sage L75i planar sections in a similar fashion taking care with both channel assignments and polarity Care and Maintenance To remove dust from the front of your L75i use a feather duster or a lint...

Page 10: ...aced at our option without charge for either parts or labor at our factory The warranty will not apply to any Wisdom Audio products that has been misused abused altered or installed and calibrated by anyone other than an authorized Wisdom Audio dealer Any Wisdom Audio product not performing satisfactorily may be returned to the factory for evaluation Return authorization must first be obtained by ...

Page 11: ...ion about a problem be explicit and complete 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 A copy of the original bill of sale will serve to verify warranty status Please include it with the unit when it is brought in for warranty service WARNING All returned units must be packag...

Page 12: ...dance woofer section 3Ω Sensitivity planar section 95 dB 2 83V 1m Sensitivity woofer section 91 dB 2 83V 1m System impedance 3 8Ω System sensitivity 93 dB Power handling continuous 200w Dimensions See appropriate dimensions drawings on next page 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 Cit...

Page 13: ...SAGE SERIES L75i WISDOMAUDIO COM 13 L75i Dimensions ...

Page 14: ...Audio Inc All rights reserved Printed in U S A WISDOM and the stylized W are registered trademarks of Wisdom Audio Wisdom Audio 1572 College Parkway Suite 164 Carson City Nevada 89706 USA TEL 775 887 8850 FAX 775 887 8820 wisdomaudio com ...

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