JBL MPA1100 Скачать руководство пользователя страница 9

8

Installation

With paralleled inputs, the signal may be looped through (or “daisy-chained”)

by going in one channel’s inputs and out the other. The amplifier Gain settings will
not affect the level at the input jacks.

Bridged-Mono Mode

1. Locate the selector switch adjacent to the CHANNEL 1 input XLR connector, and

set it to the BRIDGE position (see Figure 6, right side, on page 6).

2. Connect inputs to Ch 1 only. Do not connect anything to Ch 2 inputs. 

3. Set Ch 2 Gain on FULL and regulate Gain with Ch 1 Gain only. Both channels

should display the same LEVEL readouts. 

4. A single speaker load is used. The positive lead may be connected to Ch 1 red

binding post, and the negative lead to Ch 2 red binding post, but due to the
high voltage present (see caution note) we recommend the use of the fully
insulated Speakon connector. Both wiring options are shown in Figure 7.

Speakon wiring for bridged mono, using the third, or
“stereo” Speakon:

Connect speaker positive to pin 1+. 

Connect speaker negative to pin 2+. 

Figure 11. Connection Options of Speaker Load for Bridged Mono Operation.

Figure 12. Speakon Connection Details for Bridged Mono Operation.

CHANNEL 1

OUTPUT

–   BRIDGED MONO    +

CHANNEL 2

OUTPUT

+

BRIDGED MONO

8 OHM 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 voltages up to 200
volts rms are available
between the MPA1100’s
bridged terminals (140
volts into an 8 ohm load).
Even on the MPA600, 150
volts rms are available
between the bridged
terminals (103 volts into
an 8 ohm load). Fully
insulated CLASS ONE
wiring must be used, and
the load must be rated up
to 2400 watts (8 ohms)
on the MPA1100, 1500
watts on the MPA750, and
1330 watts (8 ohms) on
the MPA600. While the
MPA400 and MPA275
develop somewhat less
power, precautions should
be observed nonetheless.

VORSICHT BEIM ÜBERBRÜCKTEN MONO-MODUS:

Zwischen den überbrückten Terminals des MPA1100 (140 Volt bei einer Belastung von 8 Ohm) besteht eine Ausgangsspannung mit
einem quadratischen Mittelwert von bis zu 200 Volt. Selbst beim MPA600 besteht eine Ausgangsspannung mit einem quadratischen
Mittelwert von 15j0 Volt zwischen den überbrückten Terminals (103 Volt bei einer Belastung von 8 Ohm). Zu verwenden ist voll
isolierte Verdrahtung der US-Klasse Eins, und die angeschlossene Belastung muß für bis zu 2400 Watt (8 Ohm) beim MPA1100,
1500 Watt beim MPA750 und 1330 Watt (8 Ohm) beim MPA600 ausgelegt sein. Obwohl die Leistung beim MPA400 und MPA275
etwas geringer ist, sind die Sicherheitsvorschriften dennoch einzuhalten.

Содержание MPA1100

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Отзывы: