Introduction
The MIX MAX 7 is designed to be used as a middle component of a sound
system. Such a system might be comprised of sound sources such as micro-
phones , tape deck, tuner or CD player, preamplifier (such as the RM5C), power
amplifier (such as the ROLLS RA2110) and speaker system.
Features
¨ Three XLR balanced Mic inputs with phantom power.
¨ Bass and treble tone controls.
¨ Stereo effects loop on Mics for sound effects
¨ FX loop may also be used as fourth source input.
¨ 3 Stereo source inputs for tape player, compact disk, radio, etc..
¨ Master level out for overall volume adjustment.
¨ RCA and 1/4" stereo outputs for amp, tape, monitors, etc..
¨ Professional design for hard use and/or permanent installations.
¨ Three year limited warranty
Applications
The ROLLS MIX MAX 7 is intended for mixing up to three microphones with up to
three stereo source signals as in aerobics studios, Karoake lounges, or audio
visual applications. Its versatile inputs and outputs as well as commercial grade
design make it an important problem solver in many audio situations. The FX loop
may also be used as a fourth source input, but this may disable the Mics unless
the unit is modified.
Front panel controls
Mic 1 - 3, These are the channel volume controls and adjust the volume sent to
the tone controls and FX send
SOURCE 1-3 are the level controls for the RCA source inputs on the rear.
FX IN OUT switch is for engaging the external sound effects in the FX loop.
FX LEVEL sets the level of the FX return jack inputs on the rear.
BASS - controls the boost or cut of frequencies below 400 Hz.
TREBLE - controls the boost or cut of frequencies above 400 Hz .
MASTER VOLUME for adjusting the main stereo output level for the unit.
Rear Panel Jacks
MIC 1 - 3 - are the inputs for dynamic or phantom power microphones
PHANTOM POWER - are the jumpers for turning on the microphone power for the
XLR inputs, and are numbered for the channel they are assigned to.
FX SEND - is the output to external effects units.
FX RETURN R & L - Are the inputs from the external sound effects units, EQ,
Etc.
SOURCE 1 - 3 are the inputs from tuner, tape, CD player, Etc.
LEFT & RIGHT OUT are the main outputs to the power amp, EQ, Etc.
Microphone Phantom Power
Phantom power is a means of powering condenser microphones through the
microphone cable. The RM5C has individually switchable phantom power for each
of it’s 3 Mic channels through the XLR connectors. Phantom power is turned on
and off by using the shorting clips on the header pin strip on the rear of the unit.
To enable phantom power connect shorting jumper across pins 1 & 2 for Mic 3,
pins 3 & 4 for Mic 2 and pins 5 & 6 for Mic 1. To turn off the phantom power simply
insert the jumper so it is verticle on only one pin, this will store the jumper and
disconnect phantom power. If phantom power is not needed it should be switched
off to avoid damage or degraded sound quality.
Installation
The MIX MAX 7 will mount in a single space of a standard 19" relay rack or any
suitable location. It requires no special ventilation but should be properly grounded
and kept dry for safety reasons. The RM5C has plenty of level to drive most any
power amplifier, the 1/4" and RCA output jacks are parallelled, if both are used the
units they are driving will have to match the same level.
Specifications
Input impedance
Mic
600 Ohm XLR balanced
Source
22K Ohm gold plated RCA
FX Loop
22K Ohm 1/4"
Max input level
Mic
-14 dBV balanced
Source
24 dBV
Input Connectors
XLR with switched 12VDC phantom power
Phantom Power
+12V
Output
+17 dBV max, 1/4" phone and RCA
Output impedance
50 ohm
Max Gain
60 dB mic
26 dB source
Phase Shift
< 10 deg. 20 Hz - 20K Hz
Tone control
12 dB treb, bass cut/boost, 400 Hz center
Max S/N Ratio
106 dB
THD
<.003 %
IMD (SMPTE)
<.003 %
CMRR
52 dB (Mic)
Size
19" X 1.75" X 6" (48.3 X 4.5 X 15 CM)
Weight
7 lbs (2.3 kg)
