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TD-001536-01-B

KS212C Applications and Installation

 WA N NE:

 

 The KS212C subwoofer is not suitable for flying or suspension.  

 
Before placing, installing, or mounting a subwoofer check all hardware, cabinets, transducers, brackets, and associated 
equipment for damage. Missing, corroded, deformed, or non-load-rated components could significantly weaken the 
installation or placement and severely reduce the safety of the installation if left uncorrected. Use only hardware that is 
rated for the loading conditions of the installation as well as any possible short-term overloading. 
 
Never exceed the load rating of the hardware or equipment. 
 
Consult a licensed professional engineer regarding physical equipment installation. Understand and follow all local, state, 
and national regulations regarding the safety and operation of loudspeakers and related equipment.

NIMNAOW OE:

 

To maintain the acoustic properties of the 

KS212C subwoofer do not place the unit closer than 50 mm (20 
in) from a wall or other object that would reflect sound waves.

Placement of the KS212C

Make sure that the KS212C sub is placed no closer than 
20 inches (50 cm) to the back wall of the stage. 
Side-by-side KS212C subs should be at least 20 inches (50 cm) 
away from each other.

Stacking the KS212C

KS212C subwoofers can stack in a horizontal orientation. The four 
rubber feet on the top subwoofer fit perfectly into the four cups on 
the bottom one (Figure 5). Do not stack more than two KS212C 
subwoofers because it will reduce rear attenuation. 
•  One subwoofer: 15 dB front-to-rear attenuation at 70 Hz
•  Two subwoofers stacked: 12.5 dB front-to-rear attenuation at 70 Hz
•  Three subwoofers stacked: 10 dB front-to-rear attenuation at 70 Hz
A stack of two subwoofers can support a loudspeaker, including a pole-mounted one.

 WA N NE:

 

Do not stack the KS212C units in a vertical orientation.

Minimum 20 in / 50 cm 

Front of Stage

– Figure 4 –

– Figure 5 –

Back W

all of Stage

Summary of Contents for KS Series

Page 1: ...TD 001536 01 B TD 001536 01 KS Series User Manual KS112 2000 watt Active Subwoofer KS118 3600 watt Active Subwoofer KS212C 3600 watt Active Cardioid Subwoofer KS212C KS112 KS118...

Page 2: ...uids 4 Clean only with a dry cloth Do not use any aerosol spray cleaner disinfectant or fumigant on near or into the loudspeaker 5 Do not block any ventilation opening Install in accordance with the m...

Page 3: ...rence will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the use...

Page 4: ...age Contents 1 KS112 KS118 or KS212C subwoofer 1 Locking AC power cord 2 White QSC logo 1 QSC limited warranty TD 000453 1 Quick start guide TD 000499 KS212C TD 001518 KS112 TD 001551 KS118 1 Powered...

Page 5: ...readed socket for 35 mm loudspeaker pole 5 Slip resistant feet four on the bottom 6 Slip resistant feet four on the side 7 Cast aluminum handles 8 M20 threaded socket for 35 mm loudspeaker pole 9 Fron...

Page 6: ...ier protection rails 4 M20 threaded socket for 35 mm loudspeaker pole 5 Slip resistant feet four on the bottom 6 Slip resistant feet four on the side 7 Cast aluminum handles 8 Front power LED 9 Amplif...

Page 7: ...e complicated calculations involving physical spacing and signal processing Two QSC subwoofer models make those calculations unnecessary KS212C The KS212C is powered by a dual 1800 watt Class D amplif...

Page 8: ...MPORTANT To maintain the acoustic properties of the KS212C subwoofer do not place the unit closer than 50 mm 20 in from a wall or other object that would reflect sound waves Placement of the KS212C Ma...

Page 9: ...equipment installation Understand and follow all local state and national regulations regarding the safety and operation of loudspeakers and related equipment WARNING Do not stack the KS112 units in a...

Page 10: ...WARD on the Cardioid menu On each subwoofer facing away from the audience select REAR on the Cardioid menu Put the same audio signal into both subwoofers and set the same gain on each one BEST Back to...

Page 11: ...dioid Rear Cardioid Forward TOP VIEW Figure 11 Cardioid Rear FRONT VIEW as seen from audience Floor Cardioid Forward Figure 12 Three box cardioid systems A three box array with two forward facing and...

Page 12: ...fe to use with the various CP KW KLA K 2 and K Series loudspeakers and your KS Series Subwoofer in a horizontal or vertical orientation 4 OK to use 6 Not recommended see note on next page Figure 13 Fi...

Page 13: ...12 2 SP 16X Ext Pole 4 4 4 4 4 4 4 6 SP 26 Pole 4 4 4 4 4 6 4 6 NOTE Do not use the configurations marked by a red X 6 unless the subwoofer or subwoofers are properly secured or restrained Figure 15 t...

Page 14: ...IEC socket on the back of the amplifier Make sure it is fully inserted The V LOCK power cord has a special latching feature to prevent unintentional detachment The IEC cable plug and chassis socket a...

Page 15: ...the mixer or other audio source to minimum 2 Turn on all the source devices and processors CD players mixers instruments etc 3 Turn on the KS Series subwoofers 4 Turn on the top loudspeakers 5 Bring...

Page 16: ...e limiter The limiter prevents damage to the amplifier and transducer for example if the amplifier output signal level is too high or the module is running too hot 5 POWER LED blue shows that the ampl...

Page 17: ...y headings A light background with black text highlights the menu item selected 2 Exit or go back button press to return to the previous screen or menu level 3 Enter button confirm a selected paramete...

Page 18: ...ECALL SCENE USER 1 5 LOAD BACK USER 1 USER 2 RECALL SCENE USER 3 A triangle next to the scene name indicates that it is active To recall a different scene select the one you want Press the Enter butto...

Page 19: ...OFF FORWARD REAR CARDIOID OFF turns off the processing for cardioid operation so the subwoofer performs like a normal direct radiating enclosure with an omnidirectional pattern Select FORWARD on any...

Page 20: ...20 TD 001536 01 B KS212C Dimensions 33 5 in 851 mm 15 5 in 394 mm 24 5 in 622 mm...

Page 21: ...21 TD 001536 01 B KS118 Dimensions 20 5 in 520 mm 30 9 in 785 mm 25 2 in 640 mm...

Page 22: ...cking IEC power connector AC Power Input Universal power supply 100 240 VAC 50 60 Hz Universal power supply 100 240 VAC 50 60 Hz Universal power supply 100 240 VAC 50 60 Hz AC Power Consumption 1 8th...

Page 23: ...patents qsc com Mailing Address QSC LLC 1675 MacArthur Boulevard Costa Mesa CA 92626 1468 U S Main Number 1 714 754 6175 World Wide Web www qsc com Sales Marketing Voice 1 714 957 7100 or toll free U...

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