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LA Audio EQ231G User Manual

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Dual 31 Band
Graphic Equaliser
User Manual

Other manuals for LA Audio EQ231G

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LA Audio EQ231G Specifications

General IconGeneral
Channels2
Frequency Bands31
Bands31
Bandwidth1/3 Octave
Input ConnectorsXLR, 1/4" TRS
Output ConnectorsXLR, 1/4" TRS
Frequency Range20Hz - 20kHz
THD< 0.1%
Total Harmonic Distortion< 0.1%
Input Impedance20kΩ
Output Impedance600Ω
Power Supply100-240VAC, 50/60Hz
TypeStereo Graphic Equalizer
Frequency Response20Hz - 20kHz, +/-0.5dB

Summary

Important Safety Instructions

Electrical Shock & Environmental Warnings

Covers risk of electric shock, not opening unit, earthing, and moisture.

General Safety Guidance

Instructs users to read all safety instructions before connecting power.

Safety Information

Earth Connection & Covers

Details earth connection importance and not removing unit covers.

Voltage and Fuse Checks

Advises checking voltage and correct fuse type for safe operation.

Moisture and Heat Precautions

Outlines avoiding moisture and proper heat dissipation for the unit.

Introduction

Product Overview

Describes the EQ231G as a dual 31-band graphic equaliser with specific features.

Optional Features

Details optional features like parallel outputs for distortion cancellation and isolation.

Installation

Inspection and Unpacking

Instructions on checking for transit damage and shipment contents.

Operating Environment & Placement

Specifies temperature, humidity, and proximity to electromagnetic fields.

Power Requirements & Fuses

Details voltage selection and fuse ratings for safe operation.

External Connections

Describes XLR input/output wiring and pin assignments for balanced signals.

Impedance & Termination

Explains impedance matching requirements and the unit's input/output impedance.

Signal Levels

Details acceptable input signal levels and potential for clipping or distortion.

Operating Instructions

EQ Faders

Controls EQ gain at 31 ISO frequencies with cut/boost range and centre detent.

Graphic 'On' Switch

Allows filters to be taken out of circuit for comparison, with LED indication.

Gain Control

Adjusts input stage gain from - to +6dB with unity gain centre detent.

Peak LED Indicator

Illuminates within 2dB of clipping (+18dBu); suggests reducing input gain if lit.

High-Pass Filter Bypass

Allows the high-pass filter to be taken out of circuit for comparison.

Filter Frequency Control

Varies the hi-pass filter turnover frequency from 16 to 160Hz.

Applications & Techniques

Room Equalisation

Tailoring sound to correct acoustic response for improved intelligibility or volume.

Sound Shaping

Used to change original sound to be more pleasing or blend with other signals.

Elimination of Sibilance

Reducing or removing 's' sounds or using EQ with compressors as a de-esser.

Elimination of Proximity Effect

Reducing low frequency emphasis from cardioid microphones for clarity.

Sound Effects Creation

Creating effects like 'telephone voice' or 'comb over' for sonic interest.

Reduction of Feedback

Increasing gain before feedback (GBF) by cutting feedback frequencies.

Graphic EQs and Dynamics

Discusses placement of EQs before dynamics processors for optimal results.

Block Diagram & Specifications

Block Diagram

Visual representation of the EQ231G's internal signal flow.

Technical Specifications

Details frequency response, S/N ratio, impedance, output level, distortion, and dimensions.

Repairs and Warranty

Maintenance and Durability

Unit requires no preventative maintenance and is built for long-lasting performance.

Manufacturer's Warranty

One-year warranty covering defects in materials and workmanship.

Warranty Exclusions

Excludes repairs due to modification, misuse, negligence, or accident.