KRK V8 User's Manual
Contents
1. USER GUIDE KRK MODEL V8 VIDEO SHIELDED BI AMPLIFIED STUDIO MONITOR KRK SYSTEMS LLC 5452 BUSINESS DRIVE HUNTINGTON BEACH CA 92649 TEL 714 373 4600 FAX 714 373 0421 WEB SITE WWW KRKSYS COM EMAIL SALES KRKSYS COM Contents Page Introduction Features Overview 1 System Controls eceececccooccececceececees 2 Connecting Your System esse 3 Installing and Positioning Your Monitors 4 6 Design Goals and System Highlights 7 Troubleshooting 8 9 Specifications eeeececececcceeiecees 10 Introduction Congratulations on your KRK purchase And welcome to the growing family of KRK owners Growing demands on music recording industry professionals have created the need for better monitor performance at more affordable prices The V Series class of Powered Studio Monitors was created to address these needs Please take a few moments to review the information in this guide INNEN FEATURES OVERVIEW Neutrik Combo Connector accepts XLR phone and TRS connectors iM T zd 4 6 04 d ws sides System Gain Control adjusts input ne sensitivity of the monitor 9t o High Frequency Adjustment allows 3 step RAR los adjustment of high frequencies Low Frequency Adjustment allows 3 step E KR2. adjustment of low frequencies Him singice Beh Califor s s GN IEC Power Entry Module contains the e following 3 parts A On Off Switch o Aamann Fuse Block Voltage Selector TTE E d Power Connector co 888 UMIL Lab E ILLI dr z iu WC DO aM Te Systems Controls SYSTEM GAIN 30 dB 9 0 SYSTEM GAIN 6 The input sensitivity is adjusted counterclockwise reduces sensitivity with the rear panel mounted System Gain control Adjustment range is from 30dB to 6dB Factory preset gain is 6dB which should suffice for most conditions Normally adjustments would only be made if you re using your V8 in a surround system and need to balance levels or if your monitor send is too hot and not adjustable If an adjustment is necessary you ll need a small flathead screwdriver and some measuring equipment E g filtered noise generator and SPL meter HF ADJ USTMENT HF ADJUST 4 18 HF SHELF z Lc 21 High Frequency Adjustment is through a rear panel mounted 3 position toggle switch Range of control is 1dB Flat or 1dB shelving above 1 kHz Factory setting for your V8 is flat toggle switch is in middle position Room acoustics may dictate which type of adjustment you need to make to retain a flat frequency response from the monitor See additional informa
3. capable of accurately reproducing sound with clarity and accuracy Other monitors in the marketplace tend to modify extend or tilt their response above 1 kHz to sound more spatial exciting and impressive What is not mentioned is this practice tends to make you incorrectly balance your mixes to compensate for this effect leading to poor translation Your V8 was designed to reproduce the signal with a minimal of frequency enhancement Rather than attempting to defy physics your V8 delivers unaltered high frequencies and respectable low frequency response with exceptional accuracy from an 8 woofer in a reasonably small cabinet System Highlights Ability to Translate An often repeated phrase that we hear at KRK about our monitors performance is their ability to translate A mix made on your V8 s will translate to other environments and other monitors with no surprises They will perform flawlessly for years in the professional and non professional environment alike Flexibility Your V8 monitor contains an active input circuit specifically designed for balanced or unbalanced input signals The audio input connector accepts XLR and phone or TRS connectors Active Filter Crossovers Each monitor cabinet contains three active filters Subsonic low pass and high pass filter These three filters work together to deliver superior linear frequency response Active filter crossovers generate less heat resulting in no signal drift or co
4. 1102 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 Make sure that the woofers are above the height of the console Des Figure 4 Once the monitors have been placed you need to adjust the SYSTEM GAIN pots see page 2 for each monitor so that all channels have exactly the same SPL output at the listening position Although this can be done simply by listening to each channel one at a time and adjusting for relative levels we recommend using an SPL meter and filtered noise pink noise to test each channel independently Simply take a reading from each monitor and then adjust all the monitors to match your lowest SPL reading Your system levels should now be balanced for multi channel surround The most significant thing to remember is that each room presents its own set of acoustic variables You ll want to experiment a bit to arrive at the best possible sound for your room IMPORTANT NOTE Your V8 was originally packaged in a specially designed carton and included special packing materials Please save these items They should be used when transporting or shipping your V8 Design Goals KRK s design goal for your V8 was to create a monitor
5. en established and approved e Replacement carton and packaging can be purchased from KRK Systems Inc for 18 00 each e For replacement part quotes call 714 373 4600 ext 21 10 11 Specifications THE V8 POWERED STUDIO MONITOR Frequency Response High Frequency Driver Low Frequency Driver Cabinet Dimensions Net Weight THE V8 AMPLIFIER Power Rating Signal to Noise T H D Input Impedance Gain Power Consumption THE V8 CROSSOVER Crossover Frequency Crossover Slope Subsonic Filter FEATURES 47Hz 23kHz 2dB Shielded 1 25mm Fabric Soft Dome Shielded 8 203 2mm Woven Keviar High Sensitivity Voice Coil 20 liter bass reflex 1 25mm and 4 MDF construction Neutral Gray Zolatone Finish 11 W x 16 H x 12 D 279mm W x 406mm H x 304 8mm D 38 Ibs ea 17 27 kg 60 Watt HF Amplifier 130 Watt LF Amplifier gt 90dB lt 07 at full output 1khz 10k Ohms Balanced Input 26dB 160 VA 1 66kHz HF 12dB Octave Butterworth LF 18dB Octave Butterworth 12dB Octave 3dB 31Hz Neutrik Combo Connector accepts XLR and Y phone and TRS connectors IEC Mains Connector System Gain Control 3 Stage Selectable HF Gain Trim 1 0dB Flat 1 0dB 3 Stage Selectable LF Turnover Frequency 3dB 9 45Hz 50Hz or 65Hz LED Power Indicator Power On Off Muting and Delay 12 KRKand V8 are regsered trademarksof Stems Inc 13 Safety Instructions English This symbol is in
6. er cone construction Troubleshooting Problem If there is no power check to see if The power cord is plugged into both the IEC socket on the rear panel of the unit and into the AC mains The AC mains voltage is matched to the operating voltage requirements See Changing Voltage in the Connecting the System section on page 3 If the AC mains voltage is higher than the V 8 s selected voltage it is possible that the fuse needs to be replaced See Changing Fuses in the Connecting the System section on page 3 The power light is illuminated on the front panel of the V8 If not turn the power switch OFF and check the A C mains fuse s NEVER USE A LARGER AMPERAGE FUSE THAN IS SPECIFIED Turn the power switch back on The power light should illuminate If a fuse change was needed and upon powering the monitor back up the fuse s blow again the monitor needs to be returned to the dealer you purchased it from or to KRK for servicing Problem If you can t hear any sound Repeat steps in the previous troubleshooting section above before continuing to the next steps Check to see if all other audio devices using the same AC outlet are still operating Make sure that e The audio source cable is plugged into both the source output and the monitor input e The System Gain pot is turned up fully clockwise 6 dB e signal source E g mixing console work station CD player etc is turned up to a level that can properly send a signa
7. is basically the same as the Close Field set up see Figure 2 It is normally used with larger monitors or when the monitors are too 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 Listening Position Figure 2 SUBWOOFER SET UP Begin by determining the best location for your subwoofer If possible the optimum set up would look like the set up in Figure 3 This set up may not be practical or possible in your room Once you have set up your monitors Listen to some program material that you know has low frequency information recorded on it Different locations may create a phase misalignment Most Subwoofers have a phase switch on them Flip the phase switch The bass response volume will either increase or decrease in volume Whichever setting gives you the loudest response from your seating position is in phase After you have the proper phase setting you will need to adjust the output level of the Subwoofer to a level that provides a smooth blend of the bass volume with that of your monitors Listening Position Figure 3 5 1 CHANNEL SURROUND SET UP Begin set up by placing the Left and Right front channels 302 degrees from the Center channel and equidistant to the listening position Figure 4 The Left Surround Rear and Right Surround Rear channels should be placed
8. issance de toutes les consignes de s curit et d exploitation avant d utiliser le mat riel Avertissement Alimentations Ne faire fonctionner ce mat riel qu avec la source d alimentation indiqu e sur appareil Ce mat riel doit tre utilis avec une alimentation principale comportant un fil de terre neutre Le troisi me contact de mise la terre constitue un dispositif de s curit n essayez pas de la contourner ni de la d sactiver R paration maintenance Faire ex culer toutes les interventions de r paration maintenance par un technicien qualifi L utilisateur ne doit pas essayer de proc der luim me ces op rations car l ouverture ou le retrait des couvercles risquent de l exposer de hautes tensions et autres dangers 16 Explication des symboles graphiques Le symbole clair avec fl che l int rieur d un triangle quilat ral est utilis pour alerter l utilisateur de la presence l int rieur du coffret de voltage dangereux non isol d ampleur suffisante pour constituer un risque d el trocution Le symbole d exclamation l int rieur d un triangle quilat ral est employ pour alerter les utilisateurs de la pr sence d instuctions importantes pour le fonctionnement et l entretien service dans le livret d instructions accompagnant l appareil ATTENTION Pour eviter les risques de choc lectrique ne pas enlever le courvercle Aucun entretien de pi ces int rieures par l usager C
9. l within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to humans The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the product CAUTION To reduce the risk of electric shock do not remove the cover No userserviceable parts inside Refer servicing to qualified service person WARNING To prevent fire or electric shock do not expose this equipment to rain or moisture 15 Consignes de Securite Francais Ce symbole sert avertir l utilisateur que la documentation fournie avec le mat rial contient des instructions importantes concernant l exploitation et la maintenance r paration Ce symbole sert avertir l utilisateur de la pr sence dans le boitier de l appareil de tensions dangereuses non isol es posant des resques d lectrocution zou RISK OF ELECTRICAL SHOCK DD NOT OFEN ATTENTION RISQUE DE CHOC ELECTRIQUE NE PAS QUVRIR Attention Afin d viter tout danger d lectrocution ne pas enlever le couvercle ni ouvrir le boitier Aucun des l ments internes ne peut tre r par par l utilisateur S adresser un technicien de maintenance qualifi Attention Lire les instructions Prendre conna
10. l to the monitors e f 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 faulty cable or some other glitch in the audio chain If the monitor is still not responding it should be returned to the dealer that you purchased it from or to KRK for servicing Problem If the monitor suddenly stops working Turn the monitor send down or off Repeat steps in the troubleshooting sections above before continuing to the next steps Carefully check to see if the amplifier s back plate is hot If the monitor has been running at highest power output for an extended period of time it could be that the unit has become overheated and the protection circuitry has shut the system down momentarily The V8 provides maximum circuitry protection against AC power surges amplifier overdrive and overheating of the amplifiers Turn the monitor off then wait 30 minutes to allow the back plate to cool down Turn the power switch back on Increase the volume to check for normal operation If the monitor is still not responding it should be returned to the dealer that you purchased it from or to KRK for servicing 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 dri
11. large monitor arrangement in a recording studio where sounds emanating from the monitor or reflecting off ceilings walls and floors greatly affect the sound quality By shortening the path to the ear the close field monitor offers a tremendous amount of flexibility allowing the sound to become less susceptible to differing room conditions The ability to adjust the high and low frequency characteristics is equally important to help compensate for room irregularities and achieve the highest sound accuracy See HF Adjustments and LF Adjustments sections on page 2 room that is heavily dampened would typically require a high frequency boost Likewise reducing the high frequencies can alter a reverberant 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 feet away from walls and corners you ll hear less low frequency interaction excluding any interaction with the mixing console But when ideal positioning isn t practical low frequency control is the solution Lets say you have two different studios in your facility in one room the V8 s are close to the wall in the other they re further away fr
12. mponent variations to provide a more stable image Balanced Power KRK s amplifier construction is proven durable and straightforward Output wattage is balanced to match LF and HF driver sensitivities and power handling Your V8 monitor uses a toroidal power transformer for lowest possible hum and minimum noise artifacts No Compression Your V8 contains no signal compression which artificially limits the dynamic range of the program source found in some competing products Although signal compression is often used to make monitors sound louder fuller and to control unwanted characteristics of the raw drivers the result is a compromised mix Your V8 design is uncomplicated without extras between you and your mix Furniture Grade Construction The cabinetry of your V8 is constructed from 34 medium density fiberboard with a robust 1 thick front baffle It is internally braced to minimize cabinet resonance All cabinet edges and port openings are heavily radiused to reduce edge diffractions and port flutter Cabinet finish is a neutral fingerprint proof gray Zolatone Custom Made Drivers KRK is renowned for using the highest performance drivers available in our products Your V8 carries on this tradition A woven Kevlar LF driver was custom designed specifically for this cabinet volume with one goal in mind minimal compromises no surprises Kevlar is one of the strongest lightest most rigid materials that can be used in modern speak
13. om the wall Simply adjust the low frequency on each monitor and you ll have the same sound in each room This comes in handy if you re tracking in room A and mixing down in room B Positioning Your Monitors Positioning your monitors correctly in the studio is critical to their performance Typically they should be placed so that that the listening position is fully covered with all monitors resting on the same horizontal plane A great way to test a monitor for its imaging capability is to play back a CD or DVD recorded acoustically in stereo or one recorded in surround sound if you have a surround sound set up We recommend acoustic music because it represents the spectrum of sound You can adjust the angle of each monitor by listening for dead spots Keep in mind changing the angle or position of a monitor will change the sound 2 CHANNEL SET UP Close Field Configuration In a control room situation the monitors are often times placed on the meter bridge or in a close field listening position Initial placement starts by measuring out a simple equilateral triangle all three sides equal in length with the apex at the center of the listening position as shown in Figure 1 as an overlay for the stereo installation In this configuration the Left and Right monitors are each placed at a 602 angle equidistant from the listening position KA gt Listening Position Figure 1 Mid Field Configuration This configuration
14. onfier l entretien au personnel qualifi AVIS Pour eviter les risques d incendie ou d electrocution n exposez pas cet article la pluie ou a l humidit 17
15. sert Slide the circuit board out of the fuse block rotate 1802 and reinstall the fuse block Please note when making fuse changes the fuses will have to be replaced see Changing Fuses section below Make sure and align the white arrow with the raised arrow located on the power entry module before reinstalling Check to see if the correct voltage can be read from left to right in the voltage window before powering up CHANGING FUSES Under normal operation the fuses should not blow A blown fuse usually indicates an overload or fault condition To change the fuse remove the power cord pry off the fuse block with a small flathead screwdriver look for indent on the left inside of the power cord insert and change the blown fuses e 100 120VAC use 4 amp 250V 5mm x 20mm fuses e 220 240VAC use 2 amp 250V 5mm x 20mm fuses If the fuses blow immediately upon power up this indicates a fault condition and the monitor should be returned to KRK for repair NEUTRIK COMBO CONNECTOR SIGNAL INPUT 10K OHMS BALANCED PIN 2 TIP HIGH PIN 3 RING LOW PIN 1 SLEEVE GROUND The Neutrik Combo connector accommodates Y phone plugs XLR TRS Please note that PIN 2 is hot If you are using an unbalanced connection make sure and wire PIN 1 and PIN 3 together at the source end Installing Your Monitors The close field monitor by definition reduces room interaction This can be compared to the conventional stereo configuration or the
16. tended to alert the user of important operating and maintenance servicing instructions in the literature provided with the equipment This symbol is intended to alert the user of the presence of un nsulated dangerous voltage within the products enclosure that may present a risk of electric shock RISK OF ELECTRICAL SHOCK DD NOT ATTENTION RISQUE DE CHOC ELECTRIQUE NE FAS QUVRIR zum Caution To prevent the risk of shock do not remove the cover or open the speaker enclosure There are no user serviceable parts inside Refer servicing to qualified service personnel CAUTION Retain Instructions The Safety instructions should be kept for future reference WARNING Power Sources This equipment should be operated only from power source indicated on the product This equipment is intended to be used with a main power system with a grounded neutral conductor The third grounding pin is a safety feature do not attempt to bypass or disable Servicing Refer all Servicing to qualified personnel Do not attempt to remove covers or disassemble monitor enclosure because opening or removing covers may expose you to dangerous voltage or hazards This monitor is capable of producing very loud sound pressure levels Caution should be taken to protect your ears with OSHA approved noise suppression devices to avoid permanent hearing loss 14 Explanation of graphical symbols The lightning flash with arrowhead symbo
17. that you re using PIN 2 for signal and have PIN 1 and PIN 3 tied together at the source end e Refer to the Connecting the System section on page 4 of this manual to ensure that the AC mains is matched to the operating voltage requirements e 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 Please read the warranty card that was included in the shipping carton of your monitor prior to shipping it back to KRK Systems Inc All products in need of repair can be returned to the dealer where it was purchased or to KRK Systems Inc at the following address KRK SYSTEMS INC 5452 BUSINESS DRIVE HUNTINGTON BEACH CA 92649 714 373 4600 ATTENTION SERVICE DEPARTMENT e For the safest possible return to KRK please use the shipping carton and packaging that your V8 was originally shipped in e KRK cannot be responsible for any damages incurred during the shipping process due to poor packing Make sure to insure your shipment e f your monitor is out of warranty and you would like a quotation prior to servicing your product please include a note with your contact information on it and we will contact you with a service quote Service will be performed once your method of payment has be
18. tion in Installing Your Monitors section on page 4 LF ADJ USTMENT CIE 4 LF ADJUST yer que ye LEM 3dB 50 H Q nns A Li R R LF ADJUST Low Frequency turnover is set to 45Hz 50Hz or 65Hz by a rear panel mounted 3 position toggle switch Rear panel response curve graphics assist you in selecting the appropriate setting Factory setting for your V8 is 3dB 45 Hz toggle switch is in up position Room acoustics may dictate which type of adjustment you need to make to retain a flat frequency response from the monitor See additional information in Installing Your Monitors section on page 4 Connecting Your System POWERING ON ON OFF All connections should be made all faders and controls should be set at their minimum levels and all other equipment should be powered on prior to powering on your V8 monitors The power On Off switch is located on the rear panel and is internationally marked to indicate the operational status ON and OFF A yellow LED illuminates the trademarked KRK Triangle on the front baffle when power is applied NOTE MAKE SURE THAT THE VOLTAGE INDICATOR FOUND IN THE MIDDLE PORTION OF THE IEC MAINS CONTROL IS SET TO THE CORRECT VOLTAGE SETTING FOR YOUR VOLTAGE CHANGING VOLTAGE To change the voltage remove the power cord pry off the fuse block with a small flathead screwdriver look for indent on the left inside of the power cord in
19. ver 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 somewhere in the electronics e 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 e 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 e 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 solution to correct your monitors The service department can be reached at 714 373 4600 ext 21 Problem The monitor hisses hums or makes other loud noises Here are some suggestions that will help you eliminate these undesirables from your system e sure that the power cord is plugged snugly into the IEC socket on the rear of the monitor e Check the connections between the signal source and the monitor The V8 s Neutrik Combo connector is completely balanced system If you re connecting an unbalanced output to the monitor be sure
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