User manual Klipsch Speaker KW-120-THX

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KW-120-THX will be completely adequate. The companion KA-1000-THX subwoofer amplifier  
can drive either one or two subwoofers. In dual-subwoofer systems, it is usually best to place  
them right next to each other rather than spaced apart.  
Surround Back Loudspeakers  
In addition to the left and right surrounds, THX Ultra2 7.1-channel system specifications call  
for two forward-radiating surround back loudspeakers behind the listening area, preferably  
spaced no more than a few feet apart. These would be KL-650-THX or KL-525-THX LCR’s,  
either placed on stands, or ideally mounted on the back wall. Like the left and right  
surrounds, they should be slightly above seated ear level – about five to six feet off of the  
floor. In some installations, it may be preferable to use KS-525-THX’s for the surround back  
channels due to their smaller size. Their WDST design works very well in this application.  
You will probably want to space the KS-525-THX surround back pair somewhat farther  
apart than you would the LCR’s.  
Two KW-120-THX subwoofers and a KA-1000-THX amplifier are required to meet THX  
Ultra2 maximum output requirements. This specification assumes a very large room,  
however, and in many installations a single KW-120-THX will be completely adequate.  
Although the KW-120-THX will perform well in a wide variety of locations, you will get the  
most out of it by following some simple guidelines:  
Although the subwoofer’s orientation is not at all critical, avoid placing the front (driver)  
side of the cabinet up against a wall.  
The subwoofer’s output will increase as it is moved closer to walls, with maximum output  
when it is placed in a corner. If practical, always place the subwoofer against or near a  
Figure 2  
In most rooms, a subwoofer will deliver smoothest bass response when placed in a  
corner away from room openings, such as doors. So if possible, that’s the place to start.  
If you are using more than one subwoofer, you usually will get best performance by  
placing them together in the same location rather than by spacing them apart.  
Front LCR Loudspeakers  
Normally the array would be either all KL-650-THXs or all KL-525-THXs, but the center  
speaker can be different from the left and right speakers. (For example, you might combine a  
pair of KL-650-THXs for the front left and right with a KL-525-THX for the center.) The cen-  
ter-channel speaker should be centered along the width of the TV screen, directly above or  
below it or, in the case of an acoustically transparent front-projection screen, behind it. The  
left and right speakers should be placed equal distances out from the edges of the TV screen.  
Exactly how far out depends on the size of the screen. A reasonable starting point is to place  
the left and right speakers so that they and your listening position form an equilateral triangle.  
Since the center speaker helps anchor the sound to the screen, it usually is better to have the  
left and right speakers spread a little too wide than to have them too close together. The left  
and right speakers should be aimed inward towards the listening position as shown in figure  
Naturally, there are exceptions to the general rules, since no two rooms or systems are  
exactly alike. Once you have the subwoofer connected to your system and adjusted at  
least roughly (see the KA-1000-THX manual for details), you may want to experiment to  
see if you can do better.  
Note: Proper connection of your speakers to your amplifier or receiver is vital to obtaining  
good sound quality. Please follow these directions carefully. Sloppy connections can cause  
amplifier malfunction or damage.  
. In some installations, it may be desirable to wall-mount the front LCR speakers rather than  
to put them on stands or in a cabinet. To accommodate this, the KL-650-THX and KL-525-  
THX are both configured for use with OmniMount® 60.0 Series wall-and ceiling-mount brack-  
ets (See Figure 3). Refer to the OmniMount manual for detailed installation instructions.  
Klipsch THX Ultra2 loudspeakers are internally wired with custom Monster Cable® Z-Series  
speaker wire. Its Frequency Specific™ design employs multiple gauges of high-purity cop-  
per wire, carefully selected and wound to ensure optimum signal transfer at all frequencies.  
You will obtain best performance from your speakers if you connect them to your amplifier  
or receiver with Monster Cable or similar high quality wire available from your dealer. (The  
KW-120-THX comes with a 20-foot length of Monster THX Ultra-certified 1000 Series  
speaker cable terminated in professional-grade Neutrik® NL2 Speakon® connectors that  
mate with the jacks on the subwoofer and the companion KA-1000-THX amplifier.) At mini-  
mum, we recommend that you use 16-gauge or heavier stranded copper wire. Use lower-  
gauge (heavier) wire for long runs to maintain correct frequency response and minimize  
power loss.  
On the back of each KL-650-THX, KL-525-THX and KS-525-THX speaker are two sets of  
binding posts, one feeding the tweeter and the other the woofers. For conventional wiring,  
these sets are connected together with gold-plated metal straps, which can be removed for  
bi-wiring or biamping. We will explain ordinary single-wiring first and then the alternatives.  
All the information regarding single-wiring also applies to bi-wiring.  
Figure 3  
Surround Left and Right Loudspeakers  
Bare wire. Pull the two conductors apart for about an inch and strip approximately 1/4-inch  
of insulation from the end of each. (A wire stripper will simplify this, but you can use an  
ordinary pocket knife to cut around and through the insulation down to the wire.) Twist the  
strands of wire on each individual conductor tightly together. Loosen the nuts on a pair of  
binding posts until the holes through the metal posts are exposed, then insert the bare wire  
through the holes. Screw the nuts down finger-tight on the wire. Make sure that no strands  
of wire are touching from one binding post to the other or to any strands from the other  
conductor. Failure to observe this precaution at either end of the connection can result in  
amplifier malfunction or damage.  
In a 5.1- or 7.1-channel installation the left and right surround speakers will be KS-525-  
THX’s placed to the sides of the listening area, typically on or against the walls. They should  
be elevated slightly above seated ear level – five or six feet above the floor is a good target. If  
desired, the speakers can be moved back along the wall to as much as 20 degrees behind  
the listening position, especially in a 5.1-channel system. The KS-525-THX’s Wide Dispersion  
Surround Technology design gives you a great deal more latitude if you need it, delivering  
good results in configurations that depart significantly from the ideal. The KS-525-THX has a  
keyhole mount for use in hanging the speaker on the wall. To use the keyhole, all you need is  
a screw or nail of the appropriate size protruding slightly from the wall. If possible, the nail or  
screw should be driven into a wall stud; if not, be sure to use appropriate anchors in the dry-  
wall or plaster. Additionally, the KS-525-THX is configured for use with OmniMount® 20.0  
Series wall-and ceiling-mount brackets (See Figure 3). Refer to the OmniMount manual for  
detailed installation instructions.  
Pins. Many pre-made speaker cables are terminated with metal pins. Loosen the nuts on a  
pair of binding posts until the holes through the metal posts are exposed, then insert the  
pins through the holes. Screw the nuts down finger-tight on the pins — do not overtighten.  

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