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Specifications; Protection Circuitry - impact LK 705 Owner's Manual

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FEATURES
Five Channel Amplifier LK 705
Five Channel Bridgeable MOSFET Amplifier
Heavy Duty Aluminum Alloy Heatsink
Class A-B Operation
SUB Ch: Continuously Variable Low Pass Crossover
(35Hz to 155Hz)
18dB Bass Boost
Phase Shift
Remote Subwoofer Level Control
Ch 1-2 High Pass Crossover (80 - 6.000 Hz)
Ch 3-4 High Pass Crossover (80 - 1.500 Hz)
Ch 3-4 Low Pass Crossover (300 - 6.000 Hz)
Continuously Variable Input Gain Control
Nickel Plated RCA And Speaker Level Inputs
Remote Turn On / Turn Off Circuit
MOSFET Pulse Width Modulated Power Supply
2 Ohm Stable Stereo Operation With Output Power Increase
Soft Turn-on Circuit
Thermal and Speaker Short Protection Circuitry
LED Power And Protection Indicators
Dimensions: 240x50x550 mm
The IMPACT LK series
amplifiers have been designed with 100% MOSFET power supplies,
ensuring extremely quick switching response for plenty of clean power.
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SPECIFICATIONS

MODEL LK 705
Total
Max Power
1.500 W
Power RMS @ 4 Ohms
420 W
Power RMS @ 2 Ohms
620 W
Bridged Power (4 Ohms)
S/N Ratio
> 93
Low Pass Crossover (Variable)
High Pass Crossover
Bass Boost (50 Hz)
Tri-mode Operation
Yes
Remote Subwoofer Level Control
Yes
Frequency Response
9 Hz - 50 KHz
THD@ RMS Output
0.01 %
Channnel Separation
90 dB
Damping Factor
100
Fuse Values
35A x 2
(240 L x 50A x ...P)
Dimensions mm.
550

Protection Circuitry

The amplifier protect ion circui try will disabl e the amplifier if the inpu ts are overl oade d, short -circui ted or
extr emely high temperat ure cond itions are detect ed. When the protect ion mode is in operat ion, the LED indi cat or
on the front panel will be illuminated, indi cat ing the amplifier has gone into a sel f-pr eservat ion mode.
If you obs erve that the protection LED is lit, please check the system carefully to det ermine what has caused the
protection circuit to eng age. The ampl ifier can be reset by turning the remote pow er off and then on again. If the
ampl ifier shut s dow n due to a ther mal ove rload con dition, please allow it to cool dow n bef ore pow ering up. If the
ampl ifier shut s dow n bec ause of an input ove rload or shor t circuit, be sure to repa ire thes e con ditions bef ore
attempting to power up the amplifier again.
Ch 1-2
Ch 3-4
SUB Ch
350 W
350 W
800 W
60 W x 2
60 W x 2
200 W x 1
80 W x 2
80 W x 2
300 W x 1
160 W x 1
160 W x 1
300 - 6.000 Hz
30 - 155 Hz
80 - 6.000 Hz
80 - 1.500 Hz
0 - 18 dB
Yes
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