KRK V SERIES 2 User Manual
USER GUIDE
KRK V SERIES 2
BI-AMPLIFIED
STUDIO MONITOR
KRK SYSTEMS LLC.
HTTP://WWW.KRKSYS.COM
LITK00015
Warning: To reduce the risk of fire or electric shock, do not
expose this unit to rain or moisture.
The lightning flash with an arrowhead symbol within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
ìdangerous voltageî within the productí s enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.
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.
Do not place this unit on an unstable cart, stand or tripod, bracket
or table. The unit may fall, causing serious injury to a child or adult
and serious damage to the unit. Use only with a cart, stand, tripod,
bracket or table recommended by the manufacturer or sold with
the unit. Any mounting of the device on a wall or ceiling should
follow the manufacturerís instructions and should use a mounting
accessory recommended by the manufacturer.
An appliance and cart combination should be moved with care.
Quick stops, excessive force and uneven surfaces may cause the
appliance and cart combination to overturn.
Read and follow all the safety and operating instructions before
connecting or using this unit. Retain this notice and the ownerís
manual for future reference.
All warnings on the unit and in its operating instructions should be
adhered to.
Do not use this unit near water; for example, near a bath tub,
washbowl, kitchen sink, laundry tub, in a wet basement or near a
swimming pool.
The unit should be installed so that its location or position does not
interfere with its proper ventilation. For example, it should not be
situated on a bed, sofa, rug or similar surface that may block the
ventilation openings; or placed in a built-in installation, such as a
bookcase or cabinet, that may impede the flow of air through its
ventilation openings.
The unit should be situated from heat sources such as radiators,
heat registers, stoves or other devices (including amplifiers) that
produce heat.
The unit should be connected to a power supply outlet only of the
voltage and frequency marked on its rear panel.
The power supply cord should be routed so that it is not likely to be
walked on or pinched, especially near the plug, convenience
receptacles, or where the cord exits from the unit.
Unplug the unit from the wall outlet before cleaning. Never use
benzine, thinner or other solvents for cleaning. Use only a soft
damp cloth.
The power supply cord of the unit should be unplugged from the
wall outlet when it is to be unused for a long period of time.
Care should be taken so that objects do not fall, and liquids are not
spilled into the enclosure through any openings.
This unit should be serviced by qualified service personnel when:
A. The power cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the unit; or
C. The unit has been exposed to rain or liquids of any kind; or
D. The unit does not appear to operate normally or exhibits a
marked change in performance; or
E. The device has been dropped or the enclosure damaged.
DO NOT ATTEMPT SERVICING OF THIS UNIT
YOURSELF. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL
Upon completion of any servicing or repairs, request the service
shopís assurance that only Factory Authorized Replacement Parts
with the same characteristics as the original parts have been used,
and that the routine safety checks have been performed to
guarantee that the equipment is in safe operating condition.
REPLACEMENT WITH UNAUTHORIZED PARTS MAY RESULT IN FIRE,
ELECTRIC SHOCK OR OTHER HAZARDS.
ATTENTION
POUR …VITER LES CHOC ELECTRIQUES, INTRODUIRE LA
LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE
CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUíAU
FOND.
CAUTION
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
PLUG TO WIDE SLOT FULLY INSERT.
If an indoor antenna is used (either built into the set or installed
separately), never allow any part of the antenna to touch the metal
parts of other electrical appliances such as a lamp, TV set etc.
CAUTION
POWER LINES
Any outdoor antenna must be located away from all power lines.
OUTDOOR ANTENNA GROUNDING
If an outside antenna is connected to your tuner or tunerpreamplifier, be sure the antenna system is grounded so as to
provide some protection against voltage surges and built-up static
charges. Article 810 of the National Electrical Code, ANSI/NFPA No.
70-1984, provides information with respect to proper grounding of
the mast and supporting structure, grounding of the lead-in wire to
an antenna discharge unit, size of grounding conductors, location of
antenna discharge unit, connection to grounding electrodes and
requirements for the grounding electrode.
a. Use No. 10 AWG (5.3mm2) copper, No. 8 AWG (8.4mm2)
aluminium, No. 17 AWG (1.0mm2) copper-clad steel or bronze
wire, or larger, as a ground wire.
b. Secure antenna lead-in and ground wires to house with stand-off
insulators spaced from 4-6 feet (1.22 - 1.83 m) apart.
c. Mount antenna discharge unit as close as possible to where lead-
in enters house.
d. Use jumper wire not smaller than No.6 AWG (13.3mm2) copper,
or the equivalent, when a separate antenna-grounding electrode
is used. see NEC Section 810-21 (j).
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL
CODE INSTRUCTIONS CONTAINED IN ARTICLE 810 - RADIO AND
TELEVISION EQUIPMENT.
NOTE TO CATV SYSTEM INSTALLER: This reminder is
provided to call the CATV system installerís attention to
Article 820-40 of the National Electrical Code that provides
guidelines for proper grounding and, in particular, specifies
that the ground cable ground shall be connected to the
grounding system of the building, as close to the point of
cable entry as practical.
CAUTION
RISK OF ELECTRIC
SHOCK DO NOT OPEN
ATTENTION:
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER (OR BACK). NO
USER SERVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED SERVICE PERSONNEL.
IMPORTANT SAFETY INSTRUCTIONS
2
1. "An apparatus with Class I construction shall be connected to
a mains sockets outlet with protective earthing connection."
2. "Where the mains plug or an appliance coupler is used as the
disconnect device, the disconnection device shall remain readily
operable"
3. "1A fuse is used to US market, voltage will be set to 115V before
shipment: 500mA fuse is used to European market, voltage will
be set to 230V before shipment."
Contents
Page
Introduction • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 1
Design Philosophy - Design Elements • • • • • • • • • • • • • • • • • • • • • • 2-3
System Highlights - Connecting Your System • • • • • • • • • • • • • • • • • 4-5
Installing and Positioning Your Monitors • • • • • • • • • • • • • • • • • • • • • 6-8
Troubleshooting • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 9-11
Specifications • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 12
Introduction
Congratulations on your KRK purchase! And welcome to the growing family of
KRK owners.
KRK’s V Series II powered studio monitors are presicion speakers designed to
forever change the way you handle your most demanding jobs. V Series II monitors are hallmarked by defined low end, articulate midrange and precise highs,
delivering clarity and accuracy on a par with many world class speakers costing
far more.
In addition, V Series II monitors feature several key design elements that have
made KRK sound a “studio standard”. These include radiused edges for improved
imaging and slotted ports that greatly reduce port turbulence. What’s more, we’ve
also added some valuable and practical enhancements like a speaker protection
circuit for added confidence, an auto-on/off feature for improved convenience and
upgraded driver and amplifier components to ensure peak performance in even
the most demanding professional environments
Whether you are making critical mixing decisions or need to capture the subtle
nuances of a unique sound, you’ll quickly discover that the V Series II Monitors
are as precise about your work as you are.
IMPORTANT NOTE: Your V Series 2 monitor was originally packaged
in a specially designed carton and indicated special packaging
materials. Please save these items. They should be used when
transporting or shipping your V Series II monitors.
*
1
Design Philosophy
A studio monitor is really a tool used to aurally “measure” the changes in an audio
path. Ask any pro or semi-pro recordist what they think makes a great studio monitor and you’ll get basically the same answers: “Accuracy, transparency, flat
response, and the truth”.
Everybody is saying the same thing – they want the electrical signal going in to a
monitor to be reproduced mechanically by the transducers and they want that to
happen without any degradation to the original signal. Professionals need to trust a
speaker to deliver their artistic vision in a way that will translate to a variety of audio
mediums. How you get there from a technical stand point is by designing a speaker
that eliminates or minimizes several damaging conditions. The KRK design philosophy is manifested by paying very close attention to what we call the three cornerstones:
1. Spectral Balance (Timbre)
What people tend to think sounds good is not necessarily “flat response”. A perfectly flat monitor tends to sound harsh and abrasive – technically correct but not very
musical. Research shows us that a speaker with the proper spectral balance is
most often considered “a great studio monitor”.
Spectral balance is defined by:
• Smooth on-axis (not necessarily flat) response
• Smooth octave to octave response
• Smooth off-axis response (not necessarily flat)
From years of listening to feedback from some of the top engineers and producers
we’ve come to understand how a properly tuned monitor can become a valuable
recording tool.
2. Distortion Management
Any loss or addition to the audio signal is a distortion. Various amplifier distortions
have been eliminated; the most common being intermodulation, transient intermodulation and harmonic distortion.
Distortion can be present in an amplifier circuit but can really be a problem when
the waveform is impacted by physical conditions such as port turbulence and diffraction. KRK engineers implement design concepts that eliminate or minimize
these damaging conditions.
3. Resonance Management
Resonance is the tendency of something to vibrate at a particular frequency after
the source of energy is removed.
Resonances also play a major role in impacting the performance of a speaker. KRK
design elements minimize driver and enclosure resonance.
Design Elements
Active Filter Crossovers - The V-Series 2 power amplifier contains three active fil-
ters. (Subsonic, low-pass and high-pass filter) These three filters work together to
provide a seamless integration of the driver components ensuring a smooth spectral balance.
Bi-amplifier Design– KRK’s amplifier consists of audiophile grade components
and a simple audio path for transparency. Output power is balanced to match LF
and HF driver sensitivities and power handling. Your V Series 2 monitor uses a
toroidal power transformer for low hum and minimum noise.
Resonant Free Enclosure Design - The cabinetry of your V Series 2 monitor is
constructed from inert medium density fiberboard. It is internally braced and carefully damped to minimize cabinet resonance.
Radiused Edges - All cabinet edges and port openings are heavily radiused to
reduce diffraction resulting in better detail and stereo imaging.
Slotted Ports – Slotted ports reduce the port turbulence and distortion commonly
found in poorly designed round ports.
Custom Made Drivers - KRK is renowned for designing high performance studio
monitor drivers. Your V Series 2 is no exception. A woven Kevlar® LF driver was
custom-designed specifically for each model. Kevlar® is one of the strongest, lightest, most rigid materials that can be used in modern speaker cone construction
Kevlar’s unique physical properties minimize axial or conical break up modes. A
1inch soft dome tweeter was designed for detailed and accurate high frequency
reproduction. Ferrofluid is used for increased thermal power handling and
increased damping.
Defeatable Limiter - Your V Series 2 monitor contains a transparentl limiter circuit
designed to mitigate the negative effects of over driving the amplifier or the speaker. The limiter, when engaged, can greatly reduce the risk of harming a driver. It
can however be defeated using the “Clip Off/Limiter Switch” on the rear panel. This
is only recommended if you are using the product well within a listenable volume
range. Use the indicators on the front baffle to help determine the optimum level
without audible distortion
2 3
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