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Rolls mottagare MP222

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MP222 Studio Pro Preamp
ROLLS CORPORATION
SALT LAKE CITY, UTAH
10/11
CH 4
CH 1CH 2CH 3CH 4
LEVEL LEVEL LEVEL LEVEL
PS12
CLASS AMP
5 + 5 WATT 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
RR R
L L L
0 10
15 VDC
+
-
Studio Pro Preamp
Two Channel Microphone Preamp
MADE IN USA
CHANNEL 2 CHANNEL 1
www.rolls.com
PAD PHASE
LOW
CUT
CHANNEL 2
INPUT INPUT
MP222
INPUT
OUTPUT INPUTOUTPUT
MIC/
LINE
MIC/
LINE
MP222
PAD LEVEL
PHASE
LOW
CUT
CHANNEL 1
0 1800 180
CHANNEL 2CHANNEL 1
-30 dB 80Hz 80Hz
+48V +48V
CH1-TIP
CH2-RING
0 10
LEVEL
DUAL
OUTPUT
-30 dB
pwr
QUICK START
OPERATION GUIDE
For warranty registration please visit the rolls web site at www.rolls.com.
INTRODUCTION
Thank you for purchasing the new MP222 Studio Pro Preamp - two channel
microphone preamp. Although having many possible uses, this microphone
preamp was designed for studio applications. It has a transformer balanced mic
input section, and many variable options for getting your mic to sound just as you
want it to when recording. It is great if you are just looking for studio quality mic
processing, or any application where a high quality mic preamp is needed.
Please review this manual carefully as it contains important information regarding
the proper use of this product.
INSPECTION
1. Unpack and Inspect the MP222 package.
Your MP222 was carefully packed at the factory in a protective carton. None-
theless, be sure to examine the unit and the carton for any signs of damage
that may have occurred during shipping. If obvious physical damage is noticed,
contact the carrier immediately to make a damage claim. We suggest saving
the shipping carton and packing materials for safely transporting the unit in the
future.
2. Please visit our web site at www.rolls.com, click on the Register Your Warranty
Here text and follow the instructions to register your MP222.
Disclaimer:
This Quick start guide assumes that the user has a basic knowledge of audio
connections. It also assumes that the user has had some experience with record-
ing or high-end preamps.
Training and operation is the dealers responsibility. At Rolls we do not sell directly
to customers. We have factory authorized dealers and it is the dealers respon-
sibility to gather your equipment list and recommend proper products to the
consumer. Do not call the Rolls factory and expect help with your setup. We rely
on our dealers to do such work. There is only so much that can be done over the
phone so PLEASE CONTACT YOUR LOCAL DEALER WITH QUESTIONS. If
you have purchased you item online or used, you are on your own. WE HIGHLY
RECOMMEND THAT IF YOU ARE NOT FAMILIAR WITH SUCH PRODUCTS TO
PLEASE BUY THEM FROM A REPUTABLE FACTORY AUTHORIZED DEALER
THAT OFFERS CUSTOMER SUPPORT..
1
SPECIFICATIONS
Input Impedance: mic - 600 Ohms or greater XLR
Output Impedance: 50 Ohms
THD + Noise: .02%
S/N Ratio: 110 dB
Frequency Response: 20 Hz - 30 kHz (+0 / -1 dB)
Max Output Level: +14 dB
Max Input Level: +20 dB
Max Gain: +70 dB
Current Draw: 30 mA
Phantom Power: +48 VDC
Input Connectors: 4 Female XLR
DC Power Jack: (5.5 X 2.1 mm tip negative)
Output connectors: 1/8” (3.5mm) stereo out. 2 Male XLR
Size: 6.75”w x 5.125”d x 1.75” h
Weight: 1.75 lbs.
6
DESCRIPTION
FRONT PANEL
0 10
Studio Pro Preamp Two Channel Microphone Preamp
MADE IN USA
www.rolls.com
PAD PHASE
LOW
CUT
CHANNEL 2
INPUT INPUT
MP222
PAD LEVEL
PHASE
LOW
CUT
CHANNEL 1
0 1800 180
CHANNEL 2
CHANNEL 1
-30 dB 80Hz 80Hz
+48V +48V
0 10
LEVEL
-30 dB
pwr
FRONT PANEL DESCRIPTION
Note: Channel One descriptions are identical to Channel Two
INPUT:
Standard XLR type balanced input, pin 2 is hot, for Microphones.
-30 dB Pad:
This switch changes the level of the input. When in, it attenuates the input level
down by -30 dB.
PHANTOM POWER +48V:
Turns on the internal 48 volt power supply when using phantom powered micro-
phones. It should be turned off when not in use. The Phantom Power switch is a
great way to turn off or mute a condenser mic. If you are recording and want to
turn your mic off this is the best way to mute it for either short or long periods of
time.
LEVEL:
Sets the output level as desired, for best signal to noise ratio it should be
set in the middle to start.
PHASE:
This is a variable setting from 0 or “in phase” to 180 degrees out of phase and
everything in between by adjusting the level of the knob.
LOW CUT:
This is a high pass fi lter that when depressed cuts the low end of the signal at
80Hz.
1
Rolls Corporation
5968 S 350 W
Murray, Utah 84107
1
MP222.SCH A
5 May 2011
Title
Size: Document Number:
Date:
Rev:
Sheet of
MP222 DUAL MIC PREAMP
FXa
+V
R7
47K P1
W100K
R8
10K
R11
22K
R10
220K
C3
27PF
P2
P100K
C9
503
R15
22K
C7
.1U
R16 22K
C8
.1U
C10
.2UF
2
31
4
U2A
4560
+V
R13
22K
6
57
8
U1B
4560
15V REG
CH 2 (L)
VPHAN
R2
6.8K
R1
6.8K
1 2
3
J2
XLR F PC
C4
47U
+V
801-263-9053
PHASE
GAIN
HI
+V
+V
R22
10K
C13
27PF
R4 1K
R9
4.7K
R3 1K
6
57
8
U2B
4560
OUT
1 2
3
J3XLR M PC
C12
47U
R19
22K
R18
10K
LOW
C11
27PF
R26
4.7K
R23
4.7K
R20
10K
VPHAN
R24
330
R27
330
1
2
3
SW7A DPDT
4
5
6
SW7B
DPDT
R21
100
R25
100
C14
47U
4
56
SW2B
DPDT
12
3
SW3A
DPDT
Input Pad
PS27S ONLY
80hZ Low Cut
12
3
SW1A
DPDT
45
6
SW1B
DPDTCH 1 (R)
1 2
3
J1
XLR F PC
R17
1K
2
3
1
J8
JAPDC
C30
1U
D1
1N400X
D22
1N4148
11 10
U6E
4069
9 8
U6D
4069
5 6
7 14
U6C
4069
13 12
U6F
4069
C29 503
C35
47UF
C36
10UF
D4
LDGR
C31
120PF
3 4
U6B
4069
R57
22K
R55
1K
R58
10K R62
100
R63
1K
R60
4.7K
R53
22K R54
10K
R59
10K
L1
50uH
Q2
IRLZ14L
+V
D21
1N5242B
D20
1N5242B
D19
1N5242B
D23
1N5242B
Q1
2N3906
C32
1000U
C37
503
12
U6A
4069
+V
R32
47K
C15
27PF
R33
4.7K
P4
P100K
C23
503
R40
10K
R41
10K
C24
.2UF
6
57
8
U3B
4560
CH 1
VPHAN
R29
6.8K
R28
6.8K
1 2
3
J4
XLR F PC
PHASE
HI
+V
R47
10K
C27
27PF
R31 1K
R34
220K
R30
10K
OUT
1 2
3
J6XLR M PC
C26
47U
R44 22K
R43
10K
6
57
8
U4B
4560
LOW
C25
27PF
R51
4.7K
R48
4.7K
R46
10K
R49
330
R52 330
1
2
3
SW8A DPDT
4
5
6
SW8B
DPDT
R45
100
R50
100
C28
47U
4
56
SW5B
DPDT
12
3
SW6A
DPDT
Input Pad
80hZ Low Cut
12
3
SW4A
DPDT
4
5
6SW4B
DPDT
1 2
3
J5
XLR F PC
R42
1K
+V
1
23
SW5A
DPDT
+V
1
23
SW2A
DPDT
D2
LDGR
D3
LDGR
R14
10K
R39
10K
VB
C22
.1U C21
.1U
P3
W100K
+V
R381K GAIN
2
31
4
U4A
4560
2
31
4
U1A
4560
2
31
4
U3A
4560
VB
VB
VB
VB
VB
VB
VB
VB
VB
VB
1
133
2
244
T1
P/N 827
1
133
2
244
T2
P/N 827
L2
long board trace
J7
JK3.5ST
+V
+V
SCHEMATIC
2
5

Produktspecifikationer

Varumärke: Rolls
Kategori: mottagare
Modell: MP222

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