3
4
REAR PANEL
CH 4
CH 1
CH 2
CH 3
CH 4
LEVEL
LEVEL
LEVEL
LEVEL
PS12
CLASS AMP
5 + 5 W
A T
T MIX/AMP
LEFT
RIGHT
MA251
3.5mm
STEREO
+
+
-
-
BOTH OUTPUTS MUST BE USED
PHANTOM
CH 1
INPUT
CH 2
INPUT
CH 3
INPUT
POWER
LINE
OUT
ON - OFF
CH 2
MONO
INPUT
MUTE
R
R
R
L
L
L
15 VDC
+
-
CHANNEL 2
CHANNEL 1
INPUT
OUTPUT
INPUT
OUTPUT
MIC/
LINE
MIC/
LINE
MP222
CH1-TIP
CH2-RING
DUAL
OUTPUT
INPUTS: 1 - 2: XLR balanced inputs for connection to any standard dynamic or
condenser microphone. The input circuitry has a very wide input range and can
accommodate almost any (mic to line) level signal if you select the proper setting
for the Mic/Line switch.
OUTPUTS: 1 - 2: XLR balanced outputs. The output circuitry has a very wide
range and can accommodate most mic XLR inputs. If you select the proper set-
ting for the -30 dB switch on the front of the MP222.
MIC/LINE SWITCH: This is for setting up the output XLR’s for either Mic or Line
level. The mic/line switch will effect the XLR and DUAL OUTPUT levels.
IN=LINE OUT=MIC
DUAL OUTPUT: Tip-Ring-Sleeve stereo 1/8” (3.5mm) jack for connection to a
computer or other stereo type inputs. The tip of the jack is connected to channel
1 and the ring is connected to channel 2. This will make channel 1 effectively the
left output and channel 2 the right output going into a stereo application.
15 VDC JACK: For connection to the Rolls PS27s 15VDC power supply.
CONNECTION - OPERATION
Connect microphones to the MP222 via balanced XLR cables.
Make sure that you are using the proper Mic/Line switch setting. If the output
level of the MP222 seems very low or very loud it might be that you are using
the wrong mic/line switch setting. If you are using a Mic output level the mic/line
switch on the back of the MP222 is set to the Mic setting, and if you are using a
Line level output signal that the switch is in the line setting. The mic/line switch
will effect the XLR and DUAL OUTPUT levels.
IN=LINE OUT=MIC
Make sure that the input PAD switch is in the proper setting. Start with the PAD
switch in the outward position (OFF) for most Microphone applications, and
adjust it as needed. See “FRONT PANEL” section of this manual for more info
on the PAD switch. Improper PAD switch setting will make the unit seem very low
in overall volume (-30 dB to be exact). Make sure if you are using a Mic that the
PAD switch on the front of the MP222 is set to the outward position (OFF), and
if you are using a Line level input signal that the switch is in the inward -30 dB
setting (ON).
If you are using the DUAL OUTPUT connect it to the Input of your recording
device that also uses a stereo 1/8” (3.5mm) Tip-Ring-Sleeve plug. Follow the silk
screening on the back of the of the unit. The tip is connected to channel 1 and
the ring is connected to channel 2. This will make channel 1 effectively the left
output and channel 2 the right output going into a stereo application.
Connect the Rolls PS27s power supply. Once your MP222 is properly connected,
the pwr LED on the front panel will light.
If you are using condenser type microphones, apply the phantom power to the
desired channels. Test the microphone levels by speaking into the microphones
at a normal operating volume, and adjust the Mic Level controls until you achieve
desired levels. Adjust each control to the desired setting.
Adjust the PHASE and LOW CUT as desired. These can be set to any level/com-
bination that is desired in both mic or line level. Just do what sounds best to you.
For best results, we recommend recording a couple of test runs to ensure you
have proper levels set.
