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VHD4.21 Active/Passive · Drawings

VHD4.21 A

ctiv

e  ·   D

ra

wing

Drawing VHD4.21 Active/Passive

10

DE

TAIL REAR P

ANEL 

VHD4.21 A

C

TIVE

M

AIN INPUT

THROUGH OUT

PO

WER ON / 

THERM

AL

LIMITER

SIGNAL PRESENT

VHD4.21 P

ASSIVE

OUTPUT

RESIDU

AL

-CURRENT

CIRCUIT BREAKER

ON

OFF

W

ARNING - M

AINS 

VOL

TA

GE

CONNEC

ONL

Y WITH VHD4.21 

PASSIVE

USING AN OFFICIAL K

V2 A

UDIO C

ORD

W

ARNING

VER

HIGH 

AC

OUSTIC 

PRESSURE 

LE

VELS. 

TO 

ENSURE 

PROPER

OPER

ATION ALL

O

W A 

MINIMUM OF 6 INCHES OF CLEAR

ANCE

FROM 

THIS SURF

ACE AND 

ADEQU

ATE 

VENTIL

ATION. 

TO REDUCE

THE RISK OF ELEC

TRIC SHOCK DO NO

T REMO

VE 

THIS P

ANEL OR

AN

Y A

TT

ACHED C

OMPONENT

. NO OPER

AT

OR SER

VICEABLE

PAR

TS INSIDE

. REFER SER

VICING 

TO QU

ALIFIED PERSONNEL. 

TO

REDUCE 

THE RISK OF FIRE OR ELEC

TRIC SHOCK

, DO NO

T EXPOSE

THIS APPLIANCE 

TO R

AIN OR MOISTURE

.

SERIAL NUMBER

CA

UTION

W

ARNING:

RISK OF ELEC

TRIC SHOCK

DO NO

T OPEN

VH

D4

.2

1 P

ASSIV

E

OUT

PUT

RE

SIDU

AL

-CURRE

NT

CIRCUIT

 BRE

AK

ER

ON

O

FF

W

AR

NING - M

AINS 

VOL

TA

GE

CO

NNEC

T O

NL

WITH 

VHD

4.

21 P

ASSIV

E

U

SING

 A

N O

FFIC

IA

L K

V2 A

U

D

IO

 C

O

RD

W

AR

N

IN

G

VER

Y H

IGH

 A

CO

US

TI

C P

RES

SUR

E LE

VELS

. T

O

 ENS

UR

E P

RO

PER

O

PE

RA

TIO

N AL

LO

A MI

N

IMU

M O

6 IN

CH

ES O

CL

EAR

AN

CE

FR

O

M

 TH

IS

 S

UR

FA

CE

 A

N

D

 A

D

EQ

UA

TE 

VE

N

TI

LA

TI

O

N. 

TO

 R

ED

UC

E

THE

 RIS

OF

 E

LE

CT

RI

C S

HOC

DO N

O

T RE

M

O

VE

 T

HI

S P

AN

EL

 OR

AN

Y A

TT

ACH

ED

 

CO

MPO

NE

NT

. NO

 

O

PE

RA

TO

SE

RVICE

AB

LE

PA

RT

S I

N

SI

D

E. R

EFER

 S

ER

VI

CI

N

TO

 Q

UA

LI

FI

ED

 P

ER

SO

N

N

EL. 

TO

RE

DU

CE

 T

HE

 RIS

K OF

 F

IRE

 OR E

LE

CT

RIC

 S

HOC

K,

 DO N

O

T EX

POS

E

TH

IS APPL

IAN

CE

 T

O

 R

AIN

 O

R MO

IST

U

RE

.

SER

IAL

 N

U

M

BER

CA

U

TION

W

AR

NI

NG:

RI

SK OF ELEC

TR

IC SH

OCK

DO

 N

O

T O

PE

N

M

AI

INPU

T

THR

O

UG

H O

UT

PO

WER O

N /

 THERM

AL

LIM

ITER

SIG

NA

L P

RESENT

VH

D4

.2

1 P

ASSIV

E

OUT

PUT

RE

SIDU

AL

-CURRE

NT

CIRCUIT

 BRE

AK

ER

ON

OFF

W

AR

NING - M

AINS 

VOL

TA

GE

CO

NNEC

T O

NL

WITH 

VHD

4.

21 P

ASSIV

E

U

SING

 A

N O

FFIC

IA

L K

V2 A

U

D

IO

 C

ORD

W

AR

N

IN

G

VER

Y H

IGH

 A

CO

US

TI

C P

RES

SUR

E LE

VELS

. T

O

 ENS

UR

E P

RO

PER

O

PE

RA

TIO

N AL

LO

A MI

N

IMU

M O

6 IN

CH

ES O

CL

EAR

AN

CE

FR

O

M

 TH

IS

 S

UR

FA

CE

 A

N

D

 A

D

EQ

UA

TE

 V

ENTI

LA

TI

O

N. 

TO

 R

ED

UC

E

THE

 RIS

OF

 E

LE

CT

RI

C S

HOC

DO N

O

T RE

M

O

VE

 T

HI

S P

AN

EL

 OR

AN

AT

TA

CH

ED

 

CO

MPO

NE

N

T.

 N

O

 

O

PE

RA

TO

R SE

RVICE

AB

LE

PA

RT

S I

NS

ID

E. R

EFER

 S

ER

VI

CI

N

TO

 Q

UA

LI

FI

ED

 P

ER

SO

N

NEL. 

TO

RE

DU

CE

 T

HE

 RIS

K OF

 F

IRE OR E

LE

CT

RIC

 S

HOC

K,

 DO N

O

T EX

POS

E

TH

IS APPL

IANCE

 T

O

 R

AIN O

R MO

IST

U

RE

.

SER

IAL

 NU

M

BER

CA

U

TION

W

AR

NI

NG:

RI

SK OF ELEC

TR

IC SH

OCK

D

O N

O

T OP

EN

M

AI

INPU

T

THR

O

UG

H O

UT

PO

WER O

N /

 THERM

AL

LIM

ITER

SIG

NA

L P

RESENT

Connec

t only with supplied audio c

or

d C

liff

con (par

t no

. KV

V 987 337)!

Summary of Contents for KVV 987 336

Page 1: ...n is to constantly develop technologies that eliminate distortion and loss of information providing a true dynamic representation of the source Our aim is to create audio products that absorb you place you within the performance and deliver a listening experience beyond expectations ...

Page 2: ...ug has been damaged liquid has been spilled or objects have fallen into the loudspeaker rain or moisture has entered the loudspeaker the loudspeaker has been dropped or when for undetermined reasons the loudspeaker does not operate normally 16 Do not remove front or back panels Removal of the panel will expose hazardous voltages There are no user serviceable parts inside and removable may void the...

Page 3: ... Components 5 Enclosure Design 5 AC Power Requirements 6 AC Power 6 Voltage Requirements 6 The Power Connector 6 Current Requirements 7 AC Cable Color Coding 7 VHD4 21 Control Panel Inputs and Outputs 8 9 Drawings 10 Specifications 11 Accessories 12 Warranty Service 13 VHD4 21 Contents ...

Page 4: ... system Large scale live music and playback performance Dance Clubs and Nightclubs where Music comes first Hire and Production Large Concert venues Cinema Fixed installation Easily incorporated into multiple system projects with VHD SL ES and ESR VHD4 21 Overview 4 Electronics The VHD4 21 Active Bass Module consists of two purpose designed Very High Definition enclosures one active and one passive...

Page 5: ...he high acoustic loading inside the VHD4 21 chambers The VHD4 21 was designed using new concepts in twin asymmetrical acoustic chambers that deliver very high speaker loading and output from a relatively small cabinet footprint It is ideal for use in live applications that require reproduction of low frequencies with very high transient content at high output levels Enclosure Design The VHD4 21 Ac...

Page 6: ...ly be within the rated voltage window This ensures that AC voltage variations from the service entry or peak voltage drops due to cable runs do not cause the amplifier to cycle on and o or cause damage to the power supply Make sure that even with the AC voltage drop the AC voltage always stays within recommended operating ranges The minimum electrical service amperage required by a VHD4 21 speaker...

Page 7: ... the rating for slowreacting thermal breakers The burst current consumption is the maximum rms current during a period of approximately one second used to select the rating of most magnetic breakers and to calculate the peak voltage drop in long AC cables according to the formula V pk drop I pk x R cable total The ultimate short term peak current is used to select the rating of fast reacting magne...

Page 8: ...input panel A single source can drive multiple VHD4 21 subwoofers with a paralleled input loop If you are driving multiple VHD4 21 s in an array make certain that the source device can drive the total load impedance presented by the paralleled input circuit of the array 1 Audio Input and Output The VHD4 21 uses balanced female XLR connectors for audio signal input and a male XLR connector to provi...

Page 9: ...ble is included with the product part no KVV 987 337 6 Residual Circuit Breaker Switch It disconnects current to prevent serious harm from an ongoing electric shock 7 PowerCON 32 A socket The connectors comprise of contacts for phase neutral and protective earth ground conductors rated for currents up to 32 A and for voltages up to 250V VHD4 21 Control Panel 9 Most source equipment is safe for dri...

Page 10: ...TION ALLOW A MINIMUM OF 6 INCHES OF CLEARANCE FROM THIS SURFACE AND ADEQUATE VENTILATION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THIS PANEL OR ANY ATTACHED COMPONENT NO OPERATOR SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE SERIAL NUMBER CAUTION WARNING RISK OF ELECTRIC SHOCK ...

Page 11: ...agnet Type Neodymium Advanced Ventilated Low Frequency Amplifier Specification Type Direct power switching amplifier Rated Continuous Power 3500W Short Term Power 14000W Distortion 0 05 Signal Input Input Sensitivity 1 55V RMS Input Impedance 20 kΩ Power Requirements Power Connector Neutrik PowerCon 32A Operating Voltage 180V 260V 50Hz 60Hz Recommended Amperage 16A Cabinet Cabinet Material Baltic ...

Page 12: ...PADDED HEAVY DUTY COVERS Cover for VHD4 21 used without cart part name Cover VHD4 21 part number KVV 987 282 description heavy duty padded VHD4 21 Accessories 12 VHD4 21 Accessories ...

Page 13: ...utor service centre or shipped directly to the KV2 Audio factory Because of the complexity of the design and the risk of electrical shock all repairs must be attempted only by qualified technical personnel If the unit needs to be shipped back to the factory it must be sent in its original carton If improperly packed the unit may be damaged To obtain service contact your nearest KV2 Audio Service C...

Page 14: ...KV2 Audio International Nádražní 936 399 01 Milevsko Czech Republic Tel 420 383 809 320 Email info kv2audio com www kv2audio com KVV120112 00 02 0 The Future of Sound Made Perfectly Clear ...

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