Five LM-2.100, User Manual

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HIGH-PASS (HPF) FILTER ADJUSTMENT FUNCTION
If the amplifier is to be used for mid-range/tweeter loudspeakers, please, set the crossover switches
FILTER (HPF of CH1/2 and HPF of CH3/4) to “HPF”. Then set the desired crossover frequency on the HPF
controller (HPF of CH1/2 and HPF of CH3/4). Such that only the frequencies above the adjusted
crossover frequency will be amplified. This effectively minimizes distortions and overloads at lower
frequencies. A recommended good point to start is at 125 Hz. If you use loudspeakers (>20 cm) it Is
suggested to turn the crossover switch to FULL.
LOW-PASS (LPF) FILTER ADJUSTMENT FUNCTION
If the amplifier is used to drive a subwoofer, set the switch FILTER (LPF of CH3/4) to „LPF“. Set the
desired cross-over frequency by using the controller (LPF of CH3/4). Such that only the frequencies
below the adjusted cross-over frequency will be amplified and the subwoofer plays more precise
and efficiently.
SWITCHABLE BASS BOOST FUNCTION
By using the BASS BOOST switch (BASS BOOST of CH3/4) you are able to increase the bass level by 6 or
12 dB. Attention: Use the BASS BOOST wisely!
PROTECTION CIRCUIT
The PWR/PRT LED on the amplifier side panel lights up green, if the amplifier is in operation.
The PWR/PRT LED on the amplifier side panel lights up red, when the amplifier is overheated, or a
short circuit occurs or a too low impedance load is connected to the speaker outputs. If such events
happen, the internal built-in protection circuit shuts down the amplifier automatically. The amplifier
resumes work again properly after all the problems solved.
EXTERNAL REMOTE BASS BOOST CONTROL
One of the great features of FIVE amplifiers is the remote Bass Boost control which is included with all
amplifiers within the series. Using the external remote you can control the subwoofer level.
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