INTRODUCTION
The MX22A is a two-channel mixer for mixing a 1/4" line
signal such as a wireless microphone, and a stereo RCA
signal such as a CD player. The MX22A has enough output
to drive a power amplifier directly and is ideal for audio/video
and aerobics instructors.
DESCRIPTION
CH 1 1/4" Input: 1/4" unbalanced jack for receiving line or
instrument level signals.
CH 2 RCA Input: Stereo RCA input for receiving line level
signals. These signals are mixed to mono.
Line 1 Volume: Controls the level of the signal from Channel
1.
Line 2 Volume: Controls the level of the signal from Channel
2.
Line Outputs: Dual mono RCA and 1/4" jacks for connection
to a line input device such as a mixer.
Power Input: For connection to the power supply.
CH 2
VOLUME
CH 1
VOLUME
HEADPHONE/
LINE OUT
CH 1
1/4"
CH 2
RCA
POWER
INPUT
MINI-MIX
LINE MIXER
MX22A
LINE INPUTS
RCA
OUTPUT
EXAMPLE
WIRELESS
RECEIVER
CH 1
VOLUME
CH 2
VOLUME
HEADPHONE/
LINE OUT
CH 1
1/4"
CH 2
RCA
POWER
INPUT
MINI-MIX
LINE MIXER
MX22A
LINE INPUTS
RCA
OUTPUT
RA235
SCHEMATIC
R11
10K
R12
100K
C4
1U
CH 1
J4
PHONE 1/4
+B
2
3
1
4
U1A
4560
P2
P100K
R8
22K
C5
47PF
LINE/HDPHONE
1
2
3
J3A
RCAX4 PC
J1
PHONE 1/4
R2
51
C2
47U
+V
R1
100K
6
5
7
8
U1B
4560
4
5
6
J3B
RCAX4 PC
R7
10K
C6
1U
CH 2
R6
10K
+B
R4
10K
P1
P100K
+B
LINE OUTS
IN 9-15 VAC/VDC
2
3
1
J2
JAPDC
+V
C1
1000 UF
D1
1N4001
+B
C12
47U
R19
47K
R18
47K
Date:
December 5, 1994
Sheet
of
Size
Document Number
REV
A
MX22A
Title
ROLLS MX22A MINI - MIX
ROLLS CORPORATION
SPECIFICATIONS
CH1 Max Gain:
32 dB
CH2 Max Gain:
20 dB
CH1 Input Impedance:
10K Ohms
CH2 Input Impedance:
20K Ohms
Output Impedance:
50 Ohms
Power:
12 VDC 100mA (typical)
Size:
2.75" x 2.35" x 1.5" (7 x 6 x 3.8 cm)
Weight:
1lb (.45Kg)
