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Alto PBM8.250 User Manual

Alto PBM8.250
30 pages
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PBM8.250/
PBM8.500
8-channel
Stereo Powered Mixer with DSP
User's Manual
LTO
R
www.altoproaudio.com
Version 1.2 August 2004
English
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Alto PBM8.250 Specifications

General IconGeneral
BrandAlto
ModelPBM8.250
CategoryMusic Mixer
LanguageEnglish

Summary

Safety Information

Safety Symbols and Definitions

Explains safety symbols like Caution, Warning, and Ground for user awareness.

Essential Safety Guidelines

Covers warnings, power supply, grounding, and operating conditions for safe use.

Maintenance and Servicing Safety

Details safety for cover removal, fuse replacement, and qualified servicing.

Preface

Company Vision and Expertise

Highlights Alto Audio Team's passion and experience in professional audio products.

PBM8.250/500 Mixer Overview

Details the mixer's flexibility, ultra-low noise, and key functionalities.

Introduction

Product Confidence and Technology

Thanks users for choosing Alto and highlights digital amplifier technology.

Key Features and Manual Guidance

Lists major features and advises careful manual reading for optimal use.

Product Features

Digital Amplifier and Sound Quality

Offers high power and dynamic sound through advanced digital amplification.

Input Channels and Processing

Details MIC/line inputs, stereo inputs, EQ, and aux sends per channel.

Master Functions and DSP Capabilities

Covers graphic EQ, feedback terminator, multieffects, and recording outputs.

Power Output and Connectivity

Specifies amplifier power ratings and output connectors.

Quick Start Guide

Initial Connection and Safety Checks

Ensures correct AC voltage and power switch is off before connection.

Speaker and Output Setup

Guides on connecting speakers to the mixer's outputs.

Power On/Off Procedure

Specifies the correct order for powering the mixer and external devices.

Control Panel Layout

Input Channel Controls Overview

Shows controls for mono and stereo input channels (PAD, EQ, Aux, Pan, Level).

Master Section and DSP Controls

Displays master EQ, levels, feedback terminator, and DSP effect controls.

Power and Mode Switches

Details phantom power, amplifier mode selection, and indicator LEDs.

Input Channel Operations

Mono and Stereo Input Details

Covers MIC/LINE inputs, phantom power, and stereo pair connections.

Signal Processing Controls

Details PAD, 3-band EQ, Aux sends, Pan, and Level for each channel.

Master Section Controls

Monitor Mix Adjustment

Controls and monitors the monitor output level and EQ.

Main Mix Level and Feedback Control

Manages main mix level, EQ, and feedback termination.

System Status Indicators

Displays operating status and output levels via LEDs.

System Configuration and Connectivity

Phantom Power and Amplifier Modes

Controls phantom power and selects amplifier output modes.

Audio Output and Return Jacks

Details connections for monitor, main, headphone, aux, and stereo return.

DSP and Recording Features

DSP Effect Selection and Control

Covers preset selection, variations, mute, and output level controls for DSP.

Tape Input/Output for Recording

Details tape input/output jacks for signal routing and recording.

Rear Panel Connections

Power Switch and AC Inlet

Connects the mixer to AC power via a fuse holder and includes the power switch.

Speaker Output Jacks

Connects passive speakers using Speakon or 1/4" jacks.

Effect Preset Listings

Vocal and Room Reverb Presets

Details parameters for Vocal, Large Hall, and Small Hall presets.

Other Reverb and Delay Presets

Lists parameters for Large Room, Small Room, Plate, Tape Reverb, and Mono Delay.

Modulation and Combined Effect Presets

Stereo Delay and Flanger Presets

Details parameters for Stereo Delay and Flanger effect presets.

Chorus and Combined Effects Presets

Lists parameters for Chorus, Reverb+Delay, Reverb+Flanger, and Reverb+Chorus.

Installation and Connection Guide

Initial Setup and Audio Routing

Covers initial setup, channel adjustments, and audio connection types (1/4", XLR).

Speaker Connection and Amplifier Modes

Explains speaker connections via Speakon and different amplifier modes.

System Connection Examples

Amplifier Mode Speaker Configurations

Illustrates speaker connections for Bridge, Main+Monitor, and Main+Main modes.

Live Sound Application Scenarios

Provides examples for connecting inputs and outputs in live sound setups.

Technical Specifications

Input, Impedance, and DSP Specs

Details input channel specs, impedances, EQ, and DSP capabilities.

Power, Fuse, and Physical Details

Covers power supply, fuse ratings, dimensions, and weight.

Warranty Information

Warranty Registration and Returns

Outlines procedures for warranty registration and product returns.

Terms, Conditions, and Exclusions

Explains warranty coverage, exclusions, and limitations.

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