Wisdom Sage L150m Bedienungsanleitung

Owner’s Manual

Sage L150m

Tri-amplified On-Wall

Two-way Planar Magnetic Loudspeaker

SAGE L150m WISDOMAUDIO.COM

Table of Contents

Introduction | 3

Overview | 3

Unpacking and Installing the Sage L150mm | 7

Proper Planar Placement |7

Making the L150m Connections |8

Care & Maintenance | 10

North American Warranty | 11

Obtaining Service | 12

Specifications | 13

Dimensions | 14

DOCUMENT CONVENTIONS

This document contains general safety, installation, and operation instructions for the Wisdom

Audio Sage L150m Loudspeaker. 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 result in damage to or destruction of part of or the entire product.

Note: Calls attention to information that aids in the installation or operation of the product.

SAGE L150m WISDOMAUDIO.COM

Introduction

Congratulations on purchasing your Wisdom Audio system. It incorporates many design

features engineered to give you decades of pleasure and performance. Many of these

design choices are uncommon among loudspeaker manufacturers and bear some

explanation. See the following section entitled “Overview” for more information.

Our unique driver designs and our emphasis on achieving real-world performance

account for the “system” approach taken. These are not speakers that are simply

connected to speaker wires and promptly forgotten. We recognize that setting up a

Wisdom Audio system can be a bit more involved than connecting a common set of

loudspeakers, which is why we recommend that our systems be engineered and

calibrated by Factory Personnel

Your Sage L150m series loudspeaker is specifically designed to avoid the compromises

inherent in conventional speaker designs. There are no passive crossover components

inside the speaker. Instead, there are direct connections from the amplifiers to their

respective High-Pass and Low-Pass drivers and an external active crossover is used, such

as the ones inside of our Wisdom SA-DSP (Digital Signal Processing) Amplifiers. It is truly

a “system” design, and not merely a collection of loudspeaker drivers in a box. Please

Amplifiers will work with our speakers and subwoofers. [email protected]

Overview

Your Sage L150m loudspeakers take advantage of several critical technologies to deliver

a level of performance that has never been available in a loudspeaker that intruded so

modestly on your living space. In fact, this level of performance has rarely been

attained, regardless of the space and budget at one’s disposal.

Since several of these technologies cannot readily be found elsewhere, we will take the

time to describe them in more detail than would be necessary for more conventional

designs.

Our planar magnetic drivers use an advanced, thin film membrane to move the air. This

film can respond instantly to the smallest detail in the signal. It has vastly less inertia

than traditional “cone & dome” drivers, so the signal is never blurred in any way.

SAGE L150m WISDOMAUDIO.COM

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 a great deal of power. 

•The voice coil is laid out at and is exposed to the air on both sides; the large

resulting surface area dissipates heat extremely quickly and efficiently. 

•Since heat does not build up in the voice coil (as it does in conventional dynamic

drivers), the load seen by the amplifier does not change at high power levels. 

When you become accustomed to the sound of your new Sage L150m speakers,

conventional speakers sound a bit bland and lifeless. You may also discover yourself

hearing details at even modest levels on the Sage L150m that were previously inaudible

even at loud volumes on more conventional speakers. 

The “voice coil” in the planar magnetic driver is spread out over a large, at area that is

exposed to the open air. As such, when a huge transient comes along, any heat that is

generated is immediately dissipated. This compares quite favor- ably 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

strain. In fact, for a given size, they can handle many times the power of a traditional

dynamic driver.

Because the conductor of a planar magnetic driver is essentially a long, thin wire, it

presents a purely resistive load to the amplifier. This is comparable to the simple test

loads that amplifier companies use when measuring their amplifiers to show how terrific

they are. As such, you can be assured that your amplifiers will sound and work their

best.

Authoritative, deep bass requires that you move a lot of air. We have chosen to use

dynamic woofers for the bass because they can provide excellent performance at lower

frequencies.

To get comparable bass performance from a planar magnetic design, you would need to

have a huge speaker that would be impractical in most domestic living spaces. It simply

SAGE L150m WISDOMAUDIO.COM

makes more sense to use the best transducer technology in each area of the reproduced

spectrum. One of Wisdom Audio’s strengths is in seamlessly blending these technologies

– particularly important given the high standards set by our planar magnetic drivers.

Of course, the dynamic woofers themselves must be rather extraordinary to “keep up”

with the planar magnetic drivers right up to the crossover frequency.

Our woofers are different because they must be to do their job. Specifically, we need

highly dynamic, uncompressed bass (to keep up with the planar magnetic drivers) that

does not depend on a critical amount of enclosure volume (since these speakers are

mounted in your wall and use the space inside the wall as their “enclosure”). These two

design goals require rather extraordinary attention to myriad details.

Many speakers include a mid-bass “bump” in their response to give the illusion of going

deeper in the bass than they actually do. Unfortunately, this “bump” makes blending

them seamlessly with a high-quality subwoofer almost impossible.

All Sage Series speakers have been designed to optimally crossover at

80 Hz, which is the most-common crossover frequency used with subwoofers.

Line Source Speakers

Almost all loudspeakers radiate sound 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.

SAGE L150m WISDOMAUDIO.COM

By contrast, the Wisdom Sage Series L150mspeakers 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 reduced

interference, letting you hear more of the speaker and less of the room.

•The sound pressure level (SPL) throughout the room is much more evenly

distributed, making it much easier to set the “right” volume, no matter where

the audience is seated.

To achieve this 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 shape, the sound (even at high frequencies) is distributed uniformly

across the width of the room from a driver that “looks” only less than an inch wide

acoustically. However, the sound is launched in a much more directional way vertically.

By minimizing early reflections from the ceiling and the floor, the clarity of the system is

greatly enhanced. This is heard in both tremendous musical detail and in much-

improved dialog intelligibility.

For more detailed information on planar magnetic drivers and the difference between

point source and line source speakers please visit wisdomaudio.com.

SAGE L150m WISDOMAUDIO.COM

Unpacking and Installing the L150m

The Wisdom Audio Sage L150m on-wall speaker is a substantial piece of equipment.

Please exercise caution when unpacking your L150m to ensure that you do not strain

yourself from its (perhaps unexpected) weight.

CAUTION: Do not attempt to lift your L150m while bending or twisting from the waist.

Use your legs for lifting, not your back. Always stand as straight as possible and keep the

L150m close to your body to reduce strain on your back.

The speaker is shipped in a “telescoping” box (two five-sided boxes, one of which fits

snugly inside the other). Gently roll the box over so that its bottom is facing up. Then

carefully cut the tape along the bottom of the box on all four sides. Roll the box over

again so the bottom is on the floor and lift off the top. With one person at each end,

carefully lift the speaker out of the box and lay it on a soft surface (carpet or similar).

We do not recommend removing the grille on your new loudspeakers. The grille is an

integral part of the design; moreover, the planar magnetic film should never be

touched, as it is tensioned precisely at the factory. The grille plays an important

protective role as well as an aesthetic one.

After unpacking your L150m, keep all packing materials for future transport. If you

need to ship your speaker, only the original, purpose-designed shipping carton is

acceptable. Any other method of shipping this product runs a significant risk of damage

to the speaker – damage that would not be covered by the warranty. (If you lose your

packaging and need to ship your speakers, replacement packaging can be purchased

from Wisdom Audio.)

Proper Planar Placement for front L&R and Rear Surrounds

When using the L150m for front L&R and or Rear Surrounds the planar drivers should

always be placed on the inside as shown below in a front screen wall LCR example.

SAGE L150m WISDOMAUDIO.COM

Mounting the L150m on the Wall

The mounting bracket that mounts to the wall is shipped attached to the 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 dimension of the

speaker.) It is recommended to place a screw into every open mounting hole so to

avoid the bracket possibility resonating once the speaker is mounted to the wall.

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 the mounting bracket is uniformly

secured to the wall and flat (not distorted). The mounting steps are as follows:

1. Locate the area with the two sets of high- and low-pass speaker cables coming

out of the wall.

2. The inside face of the bracket assembly has arrows stamped into it indicating

which direction must be “up” when it is mounted on the wall. Align the center

screw hole in the mounting bracket next to the speaker cables and attach

somewhat loosely using a dry-wall screw (or similar),

so you can adjust the bracket for plumb.

3. Using a bubble level to ensure that the mounting bracket is plumb, mark screw

holes for EZ-Toggle screws in end clips, using the bracket itself as your

template. You can use any opposing (diagonal) set of holes for mounting of the

two EZ-Toggle screws in each end clip.

4. Rotate the bracket out of the way and install two of the supplied EZ-Toggle

screws in each mounting bracket end clip as follows:

a. Using a #2 Phillips bit in your cordless drill, spin the E-Z Toggle Anchor into

the drywall until the head of the anchor is seated flush and the arrows on

the head of the anchor point up and down. Repeat this process for each

anchor location.

b. To “set” the clamp behind the drywall, place the mounting screw into the

anchor and push or tap firmly until approximately 1" (2.5 cm) of screw is

protruding (do not rotate). Then remove the screw. Repeat for each anchor

location.

c. Rotate the mounting bracket back over the E-Z Toggles, insert the screw

and continue to turn until fastened tightly. The screw stops when the toggle

bar secures itself against the opposite side of the drywall (inside the wall).

Repeat for each anchor location.

SAGE L150m WISDOMAUDIO.COM

5. Install screws suitable for the specific wall material (e.g., sheetrock, brick,

concrete, etc.) in all the remaining holes in the mounting bracket to ensure

secure attachment to wall and avoid any resonance from mounting bracket.

Snug down the center screw 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

hear the speaker lock into the mounting bracket clips. When properly in place, it

will snap into position and remain held quite firmly.

8. Install the security set screw in the end cap, snugging down to the mounting clip

with the supplied Allen driver. This setscrew prevents the speaker from coming

loose by eliminating the vertical movement required to free the speaker from

the bracket.

If you need to remove the speaker from the bracket for any reason, first remove the

security screw using the supplied Allen wrench. A sharp upward rap with the base of

one hand or even a non-marring, dead blow hammer will help jar it loose. (Make sure

the speaker itself is being supported by an assistant so it does not come free from the

wall unexpectedly.)

Important! Do not use the L150m as a shelf! While its mounting system is quite rugged,

it is designed to securely support the weight of the speaker itself. Do not place

additional objects on it, and do not climb on it.

SAGE L150m WISDOMAUDIO.COM

Making the L150m Connections

As with any system, you should make changes to the connections only when the power

is turned off to avoid any chance of inadvertently causing a problem (such as a short-

circuit).

Note: The Wisdom Audio L150m is a tri-amplified speaker that requires three sets of

speaker wire to each location rather than the usual two. One pair of connections is for

the planar magnetic module, whereas the woofer module uses two sets of connections,

one each for six of the 12 woofers.

We recommend using heavy-gauge speaker wire, the gauge will vary dependent on your

speaker run length. Please consult an authorized dealer to determine what gauge would

be best for your application.

For the purposes of this manual, we will assume that you have already connected the

SC-2/3 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-2/3; following the SC-2/3, 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, 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

L150m planar sections in a similar fashion, taking care with all three channel

assignments and polarity.

Care & Maintenance

To remove dust from the front of your L150m, use a feather duster or a lint-free soft

cloth. Never attempt to clean the drivers themselves.

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