JBL MPA1100 Owner'S Manual Download Page 2

1

Rack Mounting Precautions

To avoid damage to the amplifier mounting ears

and/or rack rails, the amplifier must be supported at all
four corners when used in portable racks. 

Consult JBL Service Dept for availability of Rear

Support Brackets. 

Lifting Precautions

In order to safely move or install the amplifier, it is

recommended that two persons share the weight when
lifting and positioning the unit.

Sicherheitsvorschriften für den Einbau in ein Gestell

Um Schäden auf den Befestigungsleisten des

Verstärkers und/oder den Gestellschienen zu vermei-
den, muß der Verstärker beim Einbau in ein trag-
bares Gestell an allen vier Ecken gestützt werden.

Erkundigen Sie sich bei der JBL-

Kundendienstabteilung nach Stützen für die
Rückseite des Verstärkers.

Sicherheitsvorschriften beim Hochheben

Um den Verstärker sicher zu verschieben oder

einzubauen, wird empfohlen, das Gewicht des
Verstärkers beim Hochheben und Verschieben gleich-
mäßig auf zwei Personen zu verteilen.

Cautions Sicherheitsvorschriften

WARNUNG:

ZUR VERMEIDUNG VON FEUER ODER

ELEKTRISCHEN SCHLÄGEN DAS GERÄT NICH MIT REGEN
ODER FEUCHTIGKEIT IN BERÜHRUNG BRINGEN

.

WARNING: 

TO P R E V E N T F I R E O R E L E C T R I C

SHOCK

DO NOT EXPOSE THIS EQUIPMENT TO RAIN

OR MOISTURE

.

Erklärung der graphischen Symbole

Der Blitz mit nach unten zeigendem Pfeil in einem gleichseitigen
Dreieck weist den Benutzer auf das Vorhandensein einer
unisolierten, “gefährlichen Spannung” im Gehäuse hin, die stark
genug sein kann, einer Person einen elektrischen Schlag zu ver-
setzen.

Das Ausrufezeichen in einem gleichseitigen Dreieck weist den
Benutzer auf nichtige Betriebs - und Wartungsvorschriften in den
Beiliegenden Unterlagen des Gerätes hin.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: T

O

R

EDUCE THE RISK OF ELECTRIC

SHOCK

DO NOT REMOVE THE COVER

. N

O USER

-

SERVICEABLE PARTS INSIDE

. R

EFER SERVICING TO

QUALIFIED SERVICE PERSONNEL

.

VORSICHT: 

UM DAS RISIKO EINES ELEKTRISCHEN

S C H L A G E S Z U V E R M I N D E R N

A B D E C K U N G N I C H T

ENTFERNEN

KEINE BENUTZER BEDIENUNGSTEILE IM

INNERN

BEDIENUNG NUR DURCH QUALIFIZIERTES

BEDIENUNGSPERSONAL

.

To reiterate the above warnings: servicing instruc-

tions are for use by qualified personnel only. To avoid
electric shock, do not perform any servicing other than
that contained in the Operation Instructions unless you
are qualified to do so. Refer all servicing to qualified
service personnel

CAUTION

RISK OF ELECTRIC SHOCK:

OPEN ONLY IF QUALIFIED

AS SERVICE PERSONNEL

Eindrigliche Warnung: Wartungsvorschriften dienen

nur der Benutzung durch qualifiziertes Personal. Zur
Vermeidung eines elektrischen Schlages keine anderen
als die in den Betriebsvorschriften beschriebenen
Wartungsarbeiten ausführen, es sei denn, Sie sind dafür
qualifiziert. Wartungsarbeiten sind von qualifiziertem
Wartungspersonal auszuführen.

Explanation of Graphical Symbols

The lightning flash with arrowhead symbol, within an equi-
lateral 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 users to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the product.

V O R S I C H T

GEFAHR EINES ELEKTRISCHEN

SCHLAGES NICHT ÖFFNEN

V O R S I C H T

GEFAHR EINES ELEKTRISCHEN SCHLAGES: NUR VON

QUALIFIZIERTEM WARTUNGSPERSONAL ZU ÖFFNEN

V O R S I C H T

UM ELEKTRISCHEN SCHLAG ZU VERMEIDEN, KEINE

FINGERN ODER GEGENSTÄNDE IN ÖFFNUNGEN DES

GEHÄUSES STECKEN.

C A U T I O N

TO AVOID ELECTRIC SHOCK, DO NOT INSERT FINGERS

OR OBJECTS INTO ANY OPENINGS IN THE CABINET.

Summary of Contents for MPA1100

Page 1: ...P r o f e s s i o n a l A m p l i f i e r Clip 10dB 20dB Signal Present Clip 10dB 20dB Signal Present Power Protect 1 CHANNEL 2 18 10 8 6 4 12 14 24 0 2 48 18 10 8 6 4 12 14 24 0 2 48 Clip 10dB 20dB...

Page 2: ...HE RISK OF ELECTRIC SHOCK DO NOT REMOVE THE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL VORSICHT UM DAS RISIKO EINES ELEKTRISCHEN SCHLAGES ZU VERMINDERN ABDEC...

Page 3: ...peaker Outputs 5 Figure 5 Typical Unbalanced Connection 6 Figure 6 Portable Balanced System 6 Figure 7 Installed Balanced System 6 Figure 8 Ground Bus Connection 6 Figure 9 Jumper Positions for XLR Po...

Page 4: ...ort within the rack must be used in portable applica tions Open Input Architecture Slots Provided with each MPA Series amplifier is a standard input module This module and the upper input cover panel...

Page 5: ...6 7 13 23 22 23 22 25 29 24 27 28 26 30 31 31 25 29 24 27 28 26 30 31 31 Figure 2 Rear and Front Panel for 2 Space High Models MPA275 MPA400 MPA600 Figure 3 Rear and Front Panel for 3 Space High Mode...

Page 6: ...ce is 20 kilohm balanced 10 kilohm unbalanced as is typical of JBL amplifiers The input jacks are located on a removable panel which has a toggle switch for 1 bridged mono 2 normal stereo or 3 paralle...

Page 7: ...ld at the source with no connection to pin 1 at the amplifier If after wiring the input as shown above any hum or buzzing is present connect the GND terminals of all amplifiers together This bus shoul...

Page 8: ...the rear panel 5 Install the input ribbon cable and remount the Standard Input Module securely To Parallel the Inputs 1 Locate the selector switch adjacent to the CHANNEL 1 input XLR connector and se...

Page 9: ...MIN CH 2 CH 1 DUAL CHANNEL OUTPUT CONNECTOR STEREO 4 OHM MIN PER CH CONNECT ONE SPEAKER LOAD ONLY Use Either Binding Posts or Stereo Speakon but not both 2 2 1 1 BRIDGED MONO MODE CAUTION Output volt...

Page 10: ...hese levels in perspective music played at one third average power will be in a state of constant clipping and this power level is about the greatest one can obtain without completely obliterating the...

Page 11: ...1400 x 2 56 0 A 23 4 A 11 8 A 8 8 510 x 2 18 6 A 9 8A 4 8 A MPA750 4 4 760 x 2 30 0 A 14 8 A 6 8 A 0 8 A 2 2 1000 x 2 39 4 A 21 4 A 10 6 A 8 8 425 x 2 13 6 A 8 6 A 3 6 A MPA600 4 4 610 x 2 23 0 A 13 4...

Page 12: ...A 2 2 1400 x 2 28 0 A 11 7 A 5 9 A 8 8 510 x 2 9 3 A 4 9A 2 4 A MPA750 4 4 760 x 2 15 0 A 7 4 A 3 4 A 0 4 A 2 2 1000 x 2 19 7 A 10 7 A 5 3 A 8 8 425 x 2 7 8 A 4 3 A 1 8 A MPA600 4 4 610 x 2 11 5 A 6 7...

Page 13: ...proaches maximum tempera ture Illuminated steadily plus flashing during thermal muting Illuminated steadily during non thermal muting Typical Power Up Operation Power Down Behavior When the amplifier...

Page 14: ...bnormal PROTECT may flash too CLIP flashing at full LEVEL display indicates the amp has reached full power clipping and the limiter is acting to prevent severe overdrive A steady CLIP glow after the f...

Page 15: ...hose models rated at 2 ohms see Specifications the LEVEL 10 display should not be on more than about half the time with only occa sional clipping Protection Circuits The essence of high efficiency lig...

Page 16: ...f 15 dB If this does not arrest the temperature rise in case of an output short or blocked ventilation the amplifier will finally enter full muting which causes full shutdown of the output bias circui...

Page 17: ...oad grounding relay with internal fault fuses Complementary linear high efficiency outputs 3 step on MPA1100 2 step on MPA750 MPA600 MPA400 1 step on MPA275 100 120 220 240 Vac 50 60 Hz See Charts on...

Page 18: ...720 650 700 750 500 550 600 350 375 400 225 250 275 900 1000 1100 480 510 550 400 425 450 275 290 300 180 190 200 740 770 800 700 760 825 550 610 675 400 425 450 275 300 400 1000 1100 1200 900 950 100...

Page 19: ...1 THD 1 dB 50 Hz AC Power Mains 220 VAC 230 VAC 240 VAC 660 690 720 220 VAC 230 VAC 240 VAC 650 700 750 500 550 600 350 375 400 225 250 275 220 VAC 230 VAC 240 VAC 900 1000 1100 220 VAC 230 VAC 240 VA...

Page 20: ...TECT display is visible amplifier has muted due to extreme overheating Fan should be running at full speed and unless ventila tion is blocked operation should resume within one minute B The amplifier...

Page 21: ...speed 50 60 C Fan Speed rises gradually from slow to full 75 C PROTECT LED starts flashing 85 C PROTECT flash rate increases and CLIP starts to glow steadily The limiter will begin to reduce amplifie...

Page 22: ...ty without prior authorization You may obtain that authorization by contacting the factory or repair facility directly Please ship amplifiers in original packing materials or equiva lent to prevent fu...

Page 23: ...Part No TD 007500 OB PS137 2 A Harman International Company JBL Incorporated 8500 Balboa Boulevard Northridge California 91329USA...

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