Instruction Sheet
IS-MIX1
Issued: 6-1-14
Lowell Manufacturing Company
100 Integram Drive
Pacific, Missouri 63069 U.S.A.
Call: 800-325-9660
Fax: 636-257-6606
Click: www.lowellmfg.com
3
Getting Started:
Please study carefully the “IMPORTANT SAFETY INSTRUCTIONS” that are given on page 8 before applying power
to your MIX1 mixer/preamplifier.
This unit was carefully checked and packed before leaving the factory . However, it is always a good idea to inspect
the shipping container and unit for indications of improper handling . If the unit has been damaged, make an
immediate claim to the dealer or distributor from whom it was purchased . If the unit was shipped to you, notify the
transportation company without delay, saving all packing materials, in order to process the claim.
INSPECTION
Before installing the MIX1, continue the inspection by running a quick performance check. Feed input signals to the
mic or aux input channels and connect the main output to a test amplifier and speaker.
MAKE SURE THE UNIT IS
GROUNDED BEFORE TESTING.
In this way you can check the basic operation of the MIX1 before actually
installing the unit and making all of the final terminations required for the permanent installation . If shipping damage
has resulted in the MIX1 being inoperable out of the box, call Lowell Customer Service to arrange for a replacement .
INITIAL PERFORMANCE CHECK
The MIX1 is equipped with a North American style NEMA 5-15P attached AC cord with a 3-prong grounded plug for
a 120 VAC 50/60 power source.
WARNING: THE MIX1 MUST BE EARTH GROUNDED .
POWER WIRING
MOUNTING THE MIX1
The rubber feet on the MIX1 chassis allow it to be
placed on a counter top or on a wooden or metal
wall-mount shelf. Rack mounting ears have been
included so the MIX1 can be mounted to any
standard 19" equipment cabinet using standard
10-32 Phillips-head machine screws (like the Lowell
model RS or RSP rack screws) with integral plastic
washers to protect the finish of the front panel of the
MIX1. Mount the rack mounting ears to the MIX1
using the two (2) chassis screws on each side of the
unit as shown.
The MIX1 Aux inputs are standard high-impedance unbalanced RCA phono jacks . Aux input
cables should be wired with the pin “hot” or “+” and with the sleeve “common” or “-”.
AUX INPUT CONNECTIONS
Sleeve
_
+
Pin
GENERAL WIRING AND INSTALLATION GUIDELINES
DO NOT
run microphone cables near AC power wires, data cables, telephone cables, or speaker wiring to avoid
picking up extraneous signals in the sound system .
DO NOT
run speaker output cables near data cables, telephone cables, or other low voltage wiring that could pick
up the signal from the higher level speaker cables.
DO NOT
run high impedance unbalanced wiring more than 20' to avoid picking up noise and affecting the frequency
response of the sound system.
DO
use shielded cable for all microphone and line level cables (except the balanced 600 ohm input line from a
telephone system may be twisted pair cable).
DO
make sure that all speakers are wired in phase with each other .
DO
make sure there are no short circuits on the loudspeaker lines before connecting them to the amplifier output .
Chassis Screws
