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Operator Manual – LX-308B Mixer

The LX-308B is a versatile rack-mountable mixer capable of supporting the following

applications:

Small Sound Reinforcement

Church or School Mixing

MIDI Recording System

Sub-mixing in a larger system

These applications are discussed in detail on Page 8.

The LX-308B Mixer uses 1/4" TRS connectors for all inputs and outputs. Stereo inputs use

two 1/4" TRS jacks per channel, with (+) signal on the tip, the (-) signal on the ring, and

ground on the sleeve. If you wish to drive a mono source into the stereo mix, simply plug

your signal into the right channel input.

If low level and high level lines, or if either of these lines and speaker cables are run parallel

for long distances, crosstalk may be significant. In fact, the crosstalk can cause an electronic

feedback loop, oscillation, and possibly damage to the equipment. To minimize crosstalk,

physically separate low-level cables from speaker cables. At any point where cables meet,

run low level cables perpendicular to high level or speaker cables. If low and high level or

speaker cables must be run parallel and in close proximity to one another, they should be

bundled separately.

Unbalanced Connections and Grounding

If you must use unbalanced connectors, the negative lead of the connector should be tied to

the ground lead. Using unbalanced connections could result in chassis ground-loop noise.

Altering the signal/chassis ground relationship in equipment connected to your unit may

eliminate the noise.

LX-308B Connector Polarities

Page - 5

Safety Instructions – 3

Introduction - 4

LX-308B Mixer – 5

Connectors & Cables – 5

Grounding

Physical Description - 6

Installation – 7

Typical Applications - 8

Troubleshooting - 9

Dimensions - 9

Specifications - 10

Warranty - 11