Power Dynamics PRMC120 Manuel D'instructions page 6

•
If a microphone is connected to MIC1 input, make sure it is switched on and if it requires phantom power, make sure this
feature is enabled. Gradually increase its volume control whilst speaking into the microphone until the required volume level
is reached. The microphone should not be able to "hear" the speakers, which can cause feedback (squealing or howling
noise).
In addition to channel and MASTER volume controls, there are BASS and TREBLE EQ controls to adjust the tone of the overall
output. At the 12 o'clock position, these controls are applying no effect to the signal (no boost or cut). Moving the BASS control
clockwise boosts the low frequencies in the audio, whilst moving it anticlockwise will cut these low frequencies. Likewise,
moving the TREBLE control clockwise boosts the high frequencies in the audio, whilst moving it anticlockwise will cut these high
frequencies. Adjust these EQ controls to suit the type of audio signal or compensate for the room acoustics.
DIPSWITCHES
Adjacent to the XLR line microphone input is a bank of 4 DIP switches.
The right-hand switches are marked 'Phantom' and 'VOX'. 'Phantom' sets phantom power for the
corresponding XLR connector. When this is switched on you can use a condenser microphone. 'VOX' sets
the voice-operated function to active.
The left-hand DIP switches are marked mic/line. They allow for either mic- or line level for the
corresponding channels.
Noted: Be sure to make these DIP switch settings when the amplifier is switched off. Making any changes
when the amplifier is powered up may cause loud bangs through the system which can damage the
speakers.
SPEAKER OUTPUT
For optimum performance it's important to use cables specifically designed for speaker use. Do not use
shielded "guitar" signal cables for connection to these speakers.
Selection of the appropriate wire gauge is important for system operation.
A cable that is too light will result in amplifier power being wasted due to the series resistance of the cable.
In addition, loss of low-frequency performance may be experienced due to a degraded damping factor.
DC INPUT
The PRMC120 can be operated by 24V DC power for mobile applications (boats, fairgrounds etc.).
For this type of application, connect the 24V DC power source to the 24V DC input terminals on the rear panel.
24 V DC Emergency alarm contacts terminal. If the fixed power supply fails, a mobile power supply can be
connected to the 24V DC terminals to continue the power supply.
CONNECTING WITH BT
Before transmission between your BT device and the unit is possible, both devices must be coupled. This process is called
"Pairing". The unit is served as a receiver, to receive the music stream to be played on the unit. If you have already coupled to a
BT device before, this connection will be restored automatically when both devices are in range and BT operation has been
selected on the unit. "Pairing" does not have to be repeated. This function may need to be activated in your BT device, however.
•
Press [Mode] to enter BT mode.
•
Turn on BT streaming on your device. The device will scan for pairable BT devices in the reception range.
•
Select "PRMC120 Amplifier" from the list with found devices.
•
Start playback on your BT device. Playback now takes place emitting sound from the unit.
REPLACING THE FUSE
If the fuse is defective, replace the fuse with a fuse of the same type and value. Before replacing the
fuse, unplug mains lead. Procedure:
Step 1: Open the fuse holder on the rear panel with a fitting screwdriver.
Step 2: Remove the old fuse from the fuse holder.
Step 3: Install the new fuse in the fuse holder.
Step 4: Replace the fuse holder in the housing.
6