Roland MMP-2 Stereo Amplifier User Manual


 
18
Set Up and Basic Operations
Phase
fig.MicInPin.eps
The microphone input jacks for this unit are balanced. The jack wiring
is shown in the figure. However, Hot and Cold may be reversed of
MMP-2 on some balanced equipment. If such equipment is connected,
sound localization may be poor, or the balance of left and right will be
disrupted. Furthermore, the left and right channels may cancel each other when stereo input
is used. The phase shall be set same as MMP-2 in all channels before the use.
* If the phase is same through out all channels, it causes no problem even in case the wiring is different from mixers etc.
fig.LcdPhantomPhaseLocut.eps
1. Press the [PHANTOM,PHASE,LO-CUT] button.
2. Turn the center Value control to switch PHASE between NORM and INV.
NORM (normal): Normal phase (same phase as input).
INV (invert): Inverted (opposite) phase.
* Usually “NORM” is selected.
Low-cut Filter (LO-CUT)
This cuts the audio below a specified frequency. This is effective when you want to eliminate bass noise such
as microphone stand rumble or microphone handling noise. You can set a value from 20 dB to 2.00k dB.
fig.LcdPhantomPhaseLocut.eps
1. Press the [PHANTOM,PHASE,LO-CUT] button.
2. Turn the right Value control to specify the threshold frequency for cutoff. When
set to THRU, the original signal is passed without performing low-band cutoff.
Attenuator (ATT)
This adjusts the level of the input signal using digital processing. You can set a value from -42 dB to +6 dB.
fig.LcdAttenuater.eps
1. Press the [PHANTOM,PHASE,LO-CUT] button.
2. Press the [PAGE] buttons to advance the screen until ATT appears.
3. Turn the left Value control to set the value.
Leaving the attenuator set at 0 dB and adjusting for the optimal audio levels using only the
Sensitivity (SENS) control may result in the best possible audio in most cases.
Turning Off the Power
* If you’ve changed any effect parameters, you should note that your changes will be lost if you turn off the power
before they’ve been saved. If you want to keep your settings, save them in a patch (p. 15).
* Similarly, with system parameters, any setting changes you’ve made, but have not saved will be discarded as
soon as you turn off the power. If you want to keep your settings, press the [ENTER] button to save them (p. 14).
1. Lower the volume on the other audio equipment.
2. Turn off the other audio equipment.
3. Use the [POWER] switch on the rear panel to turn off the MMP-2.