LY International Electronics P.B. Series Manuale utente

OWNER’S MANUAL

Before operating, please read this manual completely.

P.B. SERIES

Powerful Public

Address Amplifiers

PB6002

PB7002

PB8002

FEATURES

1 Transformer isolated 100V, 70V and 4 Ohms speaker outputs.

2 5 LED indicator for status display.

3 XLR socket and 6.3mm jack for link convenient .

4 Output short- circuit protection & display.

5 Various models of very powerful output available.

AMPLIFIER FRONT VIEW

1. AC power switch(power indicator lighting

as ON state)

2. POWER LED indicator

3. CLIP LED indicator (Please reduce

the gain to prevent severely clipped

waveforms reaching the loudspeakers)

4. SIGNAL LED indicator (Output level)

5. PROT LED indicator (DC or output

circuit shorted indicator)

6. TEMP LED indicator

(high temperature indicator)

7. Volume (input attenuator)

8. Unit’s fan exhaust window

AMPLIFIER REAR VIEW AND CONNECTIONS

1. fan intake window

2. 100V output

3. 70V output

4. 4-16 output

5. COM. output

6. AC( low voltage ) fuse

7. XLR input

8. 6.3mm socket input

9. 6.3mm socket link

10. XLR link

11. 220VAC power cord

1 2 3 4 5 6 7 8

1 2 3 4 5 , 6

7 8 9 10 11

Pre-amp.

PB2181P

Another Amp.

PB-series

OPERATING PRECAUTIONS

Make sure the AC mains voltage is correct and is the same as that printed on the rear of the

amplifier. Damage caused by connecting the amplifier to improper AC voltage is not

covered by the three-year US warranty. Make sure the power switch is off before making

any input or output connections.

It is always a good idea to have the gain controls turned down during power-up to prevent

speaker damage if there is a high signal level at the inputs.

CONNECTING INPUTS

Input connections are made via either the 3-pin

XLR-type connectors (Figure1) or 6.3mm sockets

on the rear side of the amplifier.

CONNECTING OUTPUTS

Load can be connected using banana plugs or spade lugs. A black binding post is considered

“COM”, while the three red binding posts are considered “hot”, and the voltage is 38V（different

from the model）, 70V, and 100V.

Note:

Never connect the“hot”terminals together.

When connecting load（speakers）, it is better to use one pair of output terminals only.

If the PROT Led goes on steadily while power has been turned on and signal has been fed, there

must a trouble of output shorted. Please turn it off and correct the trouble then turn it on again.

ground signal

Figure 1 3-pin XLR-type connectors

SPECIFICATIONS

MODEL

PB6002 PB7002

PB8002

Max. Rated Power 1000W 1500W 2000W

Input sensitivity 1.2V

S/N Ratio More than 90dB

Damping Factor 200:1

Input CMRR More than 90dB

Frequency Response 80Hz-15kHz ±3dB

THD into 4/1kHz <0.3%

Slew Rate >15V/microsecond

Cooling 220V AC Fan.

Indicators “power”, “clip”, “signal”, “prot”, and

“temp” LEDs.

Protection Power turn on-turn off,

High temperature, DC voltage & O

utput

Circuit Shorting.

Power Requirement AC220-240V / 50-60Hz

Power Consumption 1800W 2600W 3500W

Dimensions 132483480mm

Gross Weight 34.5kg 40.5kg 42kg

Net Weight 31kg 37kg 38.5kg

Specifications are subject to change without notice.

CAUTION

● Do not put the vase full of water and similar things on the machine.

● Please pull out the plug from the outlet when the machine is OFF state.

● To reduce the risk of electric shock, do not remove the unit’s cover.

No user parts are inside. For services, refer to a qualified service person.

LY INTERNATIONAL ELECTRONICS CO. LTD

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