background image

10

TD-001536-01-B

Toward audience

Cardioid > Rear

Cardioid > Forward

TOP VIEW

– Figure 7 –

Toward audience

Cardioid > Rear

Cardioid > Forward

TOP VIEW

– Figure 8 –

Cardioid Configurations

Two or more KS118 subwoofers can be arranged and configured to produce a cardioid radiation pattern very simply, 
with no complex calculations or processing settings required. The processing necessary for cardioid operation is already 
programmed into each KS118 subwoofer’s DSP. On each subwoofer facing forward (toward the audience), select 

FORWARD

 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-back

Placing the subwoofers back-
to-back offers the best cardioid 
performance, with 15 dB of sound 
attenuation to the rear. Figure 7 is a 
top view of two KS118 subwoofers 
oriented vertically and placed back-
to-back. Figure 8 also is a top view 
of a back-to-back arrangement, 
but with the subwoofers oriented 
horizontally.

Toward audience

Cardioid > Rear

Cardioid > Forward

TOP VIEW

– Figure 9 –

GOOD: Side-by-side

Placing the KS118 subwoofers side-by-side (Figure 9) may save 
space but creates a less precise cardioid pattern.

Содержание KS Series

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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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