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Problem: The sound quality changes...
• Repeat steps in the previous troubleshooting section above before continuing to 

the next steps.

• Disconnect the signal cable at the input of the monitor. With power on, place your 

ear close to each driver (tweeter/woofer) and listen for noise (i.e., a slight hiss or 
hum).  If there's absolutely no sound whatsoever, it could be that one or more of 
the drivers (woofer or tweeter or both) is at fault. It's also possible that the problem lies
some where in the electronics.

• Play some non-distorted source material at a low volume.  Carefully cover the 

tweeter (to block the sound) without touching the diaphragm.  Is the woofer producing a
clean sound?  If there is not a clear tonal quality or any sound at all 
then the woofer probably needs to be replaced.

• Cover the woofer so you can hear mostly the tweeter.  Is the tweeter producing a 

clear sound?  If there is not a clear tonal quality or any sound at all then the 
tweeter probably needs to be replaced.

• Once you have a better idea of what may be at fault then call us and speak with 

someone in the service department.  They will help you determine the best solu
tion  to correct your monitors.  The service department can be reached at 954 316-1580.

Problem: The monitor hisses, hums or makes other loud noises...
Here are some suggestions that will help you eliminate these undesirables from your 
system:

• Make sure that the power cord is plugged snugly into the IEC socket on the rear 

of the monitor.

• Check the connections between the signal source and the monitor. The 

Neutrik® Combo connector is a completely balanced system. If you're connecting 
an unbalanced output to the monitor, be sure that you're using PIN 2 for signal 
and have PIN 1 and PIN 3 tied together at the source end. This can be done by using the
appropriate cable or adapter.

• All audio equipment should use the same ground point. Check all other devices 

using the same AC output in the building like dimmers, neon signs, TV screens, 
and computer monitors. These devices should not be using the same circuit. 

For updated Troubleshooting information please visit our Web Site www.krksys.com.

KRKCustomer Support can be reached at:  954-316-1580. 

13

Содержание VXT 4

Страница 1: ...U S E R G U I D E KRK VXT SERIES BI AMPLIFIED STUDIO MONITOR ...

Страница 2: ...2 ...

Страница 3: ...xtended low end and slotted ports that greatly reduce port turbulence What s more we ve provided valuable and practical features like an improved speaker protection circuit for added confidence and new drivers for extended frequency response The result is a studio reference monitor that you can trust delivering defined low end articulate midrange and precise natural highs Whether you are making cr...

Страница 4: ... from some of the top engineers and producers KRK engineers have come to understand how a properly tuned monitor can become a valuable recording tool The VXT monitors have been designed to be as flat as possible so that what you hear represents the true nature of the audio material without coloration or enhancement You can be confident in the fact that your mixes will be accurate and phase coheren...

Страница 5: ...e system to extend its lower frequency capability The third advantage is that there are no parallel internal walls This eliminates standing waves and or nodes which are extremely detrimental to the internal and external acoustical response of an enclosure These characteristics aid in eliminating the cabinet from potentially coloring the sound of the speaker system Active Filter Crossovers The VXT ...

Страница 6: ... Adjustment is through a rear panel mounted 3 position toggle switch Range of control is 1dB Flat or 1dB shelving above 2 kHz Factory setting is flat toggle switch is in middle position Room acoustics may dictate which type of adjustment you need to make to retain the proper frequency response from the monitor B LF ADJUSTMENT VXT 6 and VXT 8 ONLY This 3 way switch adjusts the low frequency respons...

Страница 7: ...tive and the limiter is bypassed 3 In the Limit position the signal is routed through the Limiter circuit and the signal is limited when a predetermined threshold is passed When the limiter is activated by overdriving the amplifier the led will illuminate The duration and intensity of the green LED will increase as limiting increases It is not recommended to mix with the limiter activated as the l...

Страница 8: ...nt room The low frequency can be adjusted to compensate for the first reflection bounce off the woofer whether it comes from the floor as in the typical stereo setup or from the surface of the mixing board when the monitor is placed atop the meter bridge Placing the monitor close to a rear wall sidewall or a corner will reinforce the low frequencies Generally speaking if you move them two to three...

Страница 9: ...o large or heavy for the meter bridge This set up has the potential for a larger sweet spot and better spatial imaging Make sure that the height of the woofer is above height of the console s meter bridge Subwoofer Setup Begin by determining the best location for your subwoofer If possible the optimum set up would look like the set up in Figure 3 however this setup may not be practical or possible...

Страница 10: ...els should be placed 110 degrees from the Center channel Their location should also be equidistant from the listening position The subwoofer Low Frequency Effects channel is most effective when situated directly below the Center channel as shown in Figure 4 If this is not possible place the subwoofer just to the right or left side and below the Center channel Ensure that the woofers are above the ...

Страница 11: ...he subwoofer just to the right or left side and below the Center channel Like the three front speakers the Left and Right surround speakers are positioned at equidistance from the mix position directly to the sides Finally the Left and Right rear surround speakers are placed behind the mix position at equidistance to the mix position The 7 1 channel surround sound environment is one of total immer...

Страница 12: ...e source output and the monitor input The System Gain pot is turned up fully clockwise 6 dB The signal source E g mixing console work station CD player etc is turned up to a level that can properly send a signal to the monitors If one of the monitors is working Exchange the audio input cable from the non working monitor to the working unit This will determine whether it s really the monitor a faul...

Страница 13: ...ve a better idea of what may be at fault then call us and speak with someone in the service department They will help you determine the best solu tion to correct your monitors The service department can be reached at 954 316 1580 Problem The monitor hisses hums or makes other loud noises Here are some suggestions that will help you eliminate these undesirables from your system Make sure that the p...

Страница 14: ...safest possible return to KRK please use the shipping carton and packaging that your KRKmonitor originally shipped in KRK cannot be responsible for any damages incurred during the shipping process due to poor packing Make sure to insure your shipment If your monitor is out of warranty and you would like a quotation prior to servicing your product please call for an RMA number No service will be pe...

Страница 15: ...tem Level Adjust 6dB to 30dB Variable Ground Lift LFT On or GND Off Clip Indicator On Off or Limit Auto Mute On or Off HF Adjust 1dB Flat 1dB LF Adjust Whole Space 3dB 40Hz Half Space 3dB 48 Hz Quarter Space 3dB 62Hz Amp Fusing HF 15 Watts LF 30 Watts 2 0A 100VAC 50HZ 2 0A 110 120VAC 50 60Hz 1 0A 220 240VAC 50 60Hz HF 30 Watts LF 60 Watts 3 15A 100VAC 50Hz 3 15A 110 120VAC 50 60Hz 1 6A 220 240VAC ...

Страница 16: ...LITK00023 ...

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