Altronics redback A 4150 2 x 200W Instrukcja obsługi - Strona 3

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Bridge mode: When operating in bridge mode connect the

speakers across the two positive terminals of the binding

post or between pins 1+ of the speaker connectors (See

wiring diagram). Ensure that the bridge mode switch on

the rear panel is set to ON position. In bridged mode only

the channel 1 volume control is active. The bridge mode

LED will illuminate on the front panel.

Protection: In the case of over temperature or severe

overload the amplifier unit will go into fault condition. In

this condition the speakers are disconnected to prevent

damage to the amplifier or speakers. Once the fault

condition is removed the amplifier will reset to normal

operation.

NOTE: Ensure that the amplifier is not continually

driven into clipping. Prolonged use in the clip mode

could cause permanent damage to connected speakers.

Volume controls should be adjusted so the "clip" LED's

rarely illuminate.

POWER OUTPUTS

A 4140: .............100 watts RMS into 8Ω, 150 watts RMS into 4Ω

Bridge mode 250 watts RMS into 8Ω

A 4150: .............200 watts RMS into 8Ω, 300 watts RMS into 4Ω

Bridge mode 550 watts RMS into 8Ω

Distortion:........................................................< 0.01%, @ 1kHz

Frequency response: ..................................20Hz - 20kHz, -3dB

Speaker outputs:...............................................................4 - 8Ω

Sensitivity: .......................................................................500mV

Signal to noise ratio:....................................................> 100 dB

OUTPUT CONNECTORS

Speakers:..........Binding posts, 4 pin Speakon

INPUT CONNECTORS

Inputs: ..............................Combination 3 pin XLR /6.35mm jack

240V AC power: .......................................IEC power connectors

PECIFICATIONS

style connectors

REDBACK Stereo Amplifiers

ROUBLE

If the REDBACK amplifier fails to deliver the rated per-

formance, check the following:

NO POWER

(Power LED light does not illuminate)

Check mains fuse. Only replace with M205, 240V AC 5A

(A 4140) or 10A (A 4150) rated fuse.

DISTORTED OUTPUT

Check that the speaker type is correct for the output that

you are using. Measure speaker line impedance.

DO NOT CONNECT 100V LINE SPEAKERS

TO THESE AMPLIFIERS

VERY LOW OUTPUT

Make sure that the input is the correct level (check for

shorted connectors). Check for any short circuits on the

speaker line.

AMPLIFIER KEEPS ON CUTTING IN & OUT

Make sure that there is adequate ventilation around the

amplifier. Check the vent slots on the case are not covered

or blocked. Check also speaker types, ratings and for any

short circuits on the speaker line.

FAULT LED LIGHT ILLUMINATES

Make sure that there is adequate ventilation around the

amplifier. Check that the vent slots on the case are not

covered or blocked. Check also for any shorts on the

speaker line.

CONTROLS

Master: .............................................................................Volume

Power: .....................................................................On/off switch

Treble & bass: .................................± 10 dB @ 100 Hz & 10kHz

Indicators: .........................................................................Power

Power supply:...............................................................240V AC

FUSE PROTECTION

A 4140:.............................................5A AC, Internal 3A DC(4 of)

A 4150:..........................................10A AC, Internal 5A DC (4 of)

WEIGHT / DIMENSIONS

A 4140: ...........................................................................≈ 12.5kg

A 4150: ..............................................................................≈ 15kg

Dimensions: .............................................≈ 483W x 330D x 88H

Colour: ................................................................................Black

*Specifications subject to change without notice

HOOTING

Fault

VU meter

Clip

Signal present

Bridged mode

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