KRK V-88 User Manual

USER GUIDE

KRK MODEL V-88

VIDEO SHIELDED

BI-AMPLIFIED

STUDIO MONITOR

KRK SYSTEMS, LLC.
5452 BUSINESS DRIVE
H UNTINGTON BEACH, CA. 92649

TEL: [phone] FAX: [phone]
WEB SITE: WWW.KRKSYS.COM
EMAIL: [e-mail]

Contents

Page

Introduction/ Features Overview • • • • • • • • • • • • • • • • • • • • 1
System Controls • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 2
Connecting Your System • • • • • • • • • • • • • • • • • • • • • • • • • • 3
Installing and Positioning Your Monitors • • • • • • • • • • • • • • • 4~6
Design Goals and System Highlights • • • • • • • • • • • • • • • • • • 7
Troubleshooting • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 8~9
Specifications • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 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.

FEATURES OVERVIEW

1. Neutrik® Combo Connector accepts XLR, ¼” phone and TRS connectors

2. System Gain control adjusts overall input sensitivity of the monitor

3. High Frequency Adjustment allows 3-step adjustment of high frequencies

4. Low Frequency Adjustment allows 3-step adjustment of low frequencies

5. IEC Power Entry Module contains the following 3 parts:

~ On/Off Switch
~ Fuse Block/Voltage Selector

1

Systems Controls

SYSTEM GAIN

Input sensitivity is adjusted (counterclockwise reduces sensitivity) through a rear panel mounted trim 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 V-88 in a surround system and you 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. tone or filtered noise generator and SPL meter)

HF ADJUSTMENT

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 V-88 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 information in Installing Your Monitors section on page 4.)

LF ADJUSTMENT

Low Frequency turnover is set to 39Hz, 47Hz, or 55Hz 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 V-88 is -3dB @ 39 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.)

2

Connecting Your System

POWERING ON

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 V-88 monitors.

The power On/Off switch is located on the rear panel and is internationally marked to indicate the operational
status. ( — ) = ON and ( O ) = 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 insert). Slide the circuit board out of the fuse block, rotate 180º 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.

• 100~120VAC use 4 amp 250V 5mm x 20mm fuses

• 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

The Neutrik® Combo connector accommodates ¼” 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.

3

Installing Your Mon itors

The close-field monitor, by definition, reduces room interaction. This can be compared to the conventional stereo
configuration or the 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 close­field 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.)

A 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 V-88’s are close to the wall, in the
other they're further away from 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 60º angle equidistant
from the listening position.

Figure 1

4

Mid-Field Configuration – This configuration 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.

Figure 2

SUBWOOFER SET-UP

Begin by determining the best location for your subwoofer. If possible, the optimum set-up would look like the set­up 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.

Figure 3

5