CH 1
INPUT
CH 1
LEVEL
MX51
MINI-MIX II
4 Channel Mixer
LIMITED WARRANTY
This product is warranted to the original consumer purchaser to
be free from defects in materials and workmanship under normal installation, use and service for a period of one (1) year from the date of purchase
as shown on the purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be
limited to repair or replacement (at our option), during the warranty period
of any part which proves defective in material or workmanship under
normal installation, use and service, provided the product is returned to
Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products
returned to us or to an authorized Service Center must be accompanied by
a copy of the purchase receipt. In the absence of such purchase receipt, the
warranty period shall be one (1) year from the date of manufacture.
This warranty shall be invalid if the product is damaged as a
result of defacement, misuse, abuse, neglect, accident, destruction or
alteration of the serial number, improper electrical voltages or currents,
repair, alteration or maintenance by any person or party other than our
own service facility or an authorized Service Center, or any use violative
of instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties,
obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN LIMITED
WARRANTY. Some states do not allow limitations on how long an
implied warranty lasts, so the above limitation may not apply to you.
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESSED OR
IMPLIED, WHATSOEVER. Some states do not allow the exclusion or
limitation of special, incidental or consequential damages so the above
limitation or exclusion may not apply to you. This warranty gives you
specific legal rights, and you may also have other rights which vary from
state to state.
CH 2
INPUTS
CH 3
INPUT
CH 4
INPUT
OUTPUT
INPUT
DC PWR
CH 2
LEVEL
MX51
MINI- MIX II
CH 3
LEVEL
CH 4
LEVEL
LINE/
OUTPUT
HEADPHONE
MX51 MINI MIX 2
• For mixing up to two 1/4" inputs with
up to three RCA input signals
• Four channels total
• Line / Headphone output level
• AC adapter included
The MX51 Mini Mix 2 is small four-channel
mixer with individual volume controls, and a
headphone / line output. The unit has two 1/
4" inputs and 3 sets of stereo RCA inputs
that are mixed to mono. It has enough gain
and output level to connect to a power amplifier, has two RCA and one 1/4" output. The
MX51 is powered by an included 12 VDC
adapter.
Rolls Corporation
Salt Lake City, UT
9/95
Owners Manual
INTRODUCTION
Thank you for your purchase of the MX51 Mini-Mix II. The MX51 is a four
channel mixer designed for A udio Visual and Aerobics applications.
Channels 1 and 2 have 1/4" inputs , Channels 3 and 4 have dual RCA
jacks mixed to mono. Channel 2 has both RCA and 1/4" inputs. The unit
also features a headphone output that will drive up to 600 Ω headphones
with full frequency response. The MX51 is intended for professional
applications and has an FR4 glass epoxy circuit board and vinyl laminated steel chassis. All inputs are mono - although the RCA inputs
appear to be stereo, the signals are mixed to mono in order to hav e all
signals present for A/V or aerobics applications where stereo amplification is not desirable .
DESCRIPTION
DC PWR: For connection to the power supply.
OUT: Stereo RCA jacks (mono signal) for connection to a mixer or
amplification device.
CH 4 and CH 3 INPUT: Stereo RCA jacks for connection to a signal
source such as a CD player , cassette deck, tuner, etc.
CH 2 INPUTS: Stereo RCA and one 1/4" jac ks (paralleled) for connection
to a signal source such as that mentioned for Channels 3 and 4, or to a
source such as a wireless microphone or instrument.
CH 1 INPUT: 1/4" unbalanced jack for connection to a source such as a
wireless microphone or instrument.
LINE/HEADPHONE OUTPUT: 1/4" Stereo jack for connection to a mixer,
amplifier or stereo headphones.
CH 1 - 4 LEVEL: Adjusts the volume level of each channel.
P4
P100K
C2 25PF
C1
1U
R1
4.7K
J5
PHONE 1/4
CH 1
R4
10K
+B
2
3
1
4
U1A
4558
R7
100K
R2
10K
C11
25PF
4
5
6
J2B
RCAX4 PC
LINE/HDPHONE
J6
PHONE 1/4
R16
51
C5
47U
+V
R10
22K
6
5
7
8
U2B
4560
+V
C9
25PF
6
5
7
8
U1B
4558
R3
10K
P3
P100K
C3
1U
R5
10K
J4
PHONE 1/4
1
2
3
J3A
RCAX4 PC
CH 2
R6 10K
+B
+B
+B
LINE OUTS
+B
P2
P100K
R13 100K
C10 25PF
2
3
1
4
U2A
4560
R8
10K
R9
10K
C4
1U
4
5
6
J3B
RCAX4 PC
CH 3
1
2
3
J2A
RCAX4 PC
CH4
R11 10K
R12
10K
C6
1U
+B
+B
P1
P100K
R14
10K
+B
C12
47U
+V
R19
10K
R18
10K
C7
1000 UF
D2
1N4001
2
3
1
J1
JAPDC
IN 9-15 VAC/VDC
Date: August 31, 1994 Sheet of
Size Document Number REV
A MX51
Title
ROLLS MX51 MINI MIX 2
ROLLS CORPORATION
OPERATION
To operate the MX51, properly connect cords from the sources to be
mixed (wireless mics, cassette decks, CD players etc.) into the channel
inputs. Connect the outputs to an amplification device or sound system.
Adjust the channel level controls for the desired volume. For private
listening, plug stereo headphones into the LINE/HEADPHONE OUTPUT
on the MX51 front.
SPECIFICA TIONS
Input Impedance: 10K Ω unbalanced each jack
CH 1 Gain: 32 dB 1/4" jack (highest gain)
Ch2 Gain: 26 dB 1/4" and each RCA
Ch 3 and 4 Gain: 26 dB each RCA
Output: 1/4" stereo and stereo RCA
S/N Ratio: >90 dB
THD: <.008%
IMD(SMPTE): <.008%
Pow er: 12 VDC adapter
Weight: 1 lbs. (.45 Kg)
Size: 3" x 5" x 1.25" (8 x 13 x 3.2 cm)
DC PWR
INPUT
OUTPUT
CH 4
INPUT
CH 3
INPUT
CH 2
INPUTS
CH 1
INPUT
LINE/
HEADPHONE
OUTPUT
CH 4
LEVEL
CH 3
LEVEL
CH 2
LEVEL
CH 1
LEVEL
MINI- MIX II
MX51
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