Episode ECA-70MIXAMP-1-240 - User Manual

OWNER’S MANUAL
ECA COMMERCIAL AMPLIFIER
ECA-70MIXAMP-1-240
100V / 70V / 50V / 4Ω Amplier
0 0 0 0 0
1 1 1 1 1
2 2 2 2 2
3 3 3 3 3
4 4 4 4 4
5 5 5 5 5
6 6 6 6 6
7 7 7 7 7
8 8 8 8 8
9 9 9 9 9
10 10 10 10 10
+12+12 -12-12
00
0
1
2
3
4
5
6
7
8
9
10
OUTPUT LEVEL
SOURCE 1
ECA-70MIXAMP-1-240
POWER
SOURCE 2 SOURCE 3 SOURCE 4
ON
OFF
MIC 1 MIC 2 MIC 3 MIC 4 SOURCE BASS TREBLE
MASTER

Summary

Important Safety Instructions

Electrical Shock and Service Warnings

Crucial warnings regarding electrical shock risks and the necessity of qualified service personnel for repairs.

Overview

Key Features

Front Panel Layout

Front Panel Controls and Indicators

Explanation of each knob, button, LED, and meter on the front interface.

Rear Panel Connections

Rear Panel Inputs, Outputs, and Power

Details on microphone inputs, speaker outputs, audio inputs, and power connections.

Amplifier Installation Guide

Positioning and Ventilation

Guidelines for placing the amplifier to ensure adequate cooling and prevent overheating.

Rack Mounting Procedures

Steps for securely mounting the amplifier into an equipment rack using rack-mount ears.

Connection Diagrams

XLR Input Pinouts

Defines the pin configuration for balanced XLR microphone inputs.

Speaker Output Wiring

Guidance on connecting speakers for various impedance and voltage configurations.

Advanced Connection Options

External Audio Processor Integration

Instructions on using Pre Out and Amp In for EQ or other external processing.

Cascading Amplifiers for Distribution

Technical Specifications

Troubleshooting Common Issues

Technical Support Contact

Product Warranty Information

Overview

1. Key Features
2. Technical Specifications
3. Usage Features
4. Installation and Maintenance Features

The Episode ECA-70MIXAMP-1-240 is a commercial amplifier mixer designed for a variety of commercial audio applications, including paging and multi-source background music. It provides 240 Watts RMS of power across a single channel and offers both AC and DC power options for flexibility in installation.

Key Features:

• Power Output: 240 Watts RMS, 1 Channel.
• Power Options: AC and DC power options (120V AC, 24V DC optional).
• Input Flexibility:
  • Four balanced XLR microphone inputs with selectable priority and phantom power options (+48V).
  • Four selectable unbalanced RCA stereo inputs for audio sources.
• Output Options:
  • Constant Voltage Options: 100V, 70V, and 50V speaker outputs.
  • Standard Speaker Output: 4 or 8 Ohm capable.
  • XLR Pre Out: Balanced XLR output attenuated by Master Volume control.
  • Rec Line Output: Unbalanced RCA stereo fixed level output.
  • Pre Out / Amp In: Unbalanced RCA mono output and input attenuated by Master Volume control, with a removable jumper for external audio processing.
• Audio Control:
  • Individual input volume controls for microphones and sources.
  • Master volume control for overall output.
  • Bass and Treble adjustments (±10dB) for tone control.
  • Low-Frequency filter protection.
• Paging and Chime Features:
  • Optional 2 or 4 tone chimes triggered by a contact closure (Chime Remote Trigger).
  • Chime volume control.
  • Microphone priority dipswitch for mic ducking (mic signal overrides sources or mixes with sources).
• Protection and Monitoring:
  • Current limiter, short circuit, and thermal protection.
  • Power level meter to display master volume output level.
  • Power LED indicator (Blue for On, Red for Protection).
• Connectivity:
  • Detachable locking output connector for secure and easy speaker connections.
  • IEC Power Cord for detachable power.
  • Replaceable main power fuse (AC Fuse).
• Physical Design:
  • Rack-mountable (occupies 2U of rack space).
  • Removable feet for rack mounting.

Technical Specifications:

• Rated Power Output: 240 watts
• Microphone Inputs: ±2.5mV/2KΩ XLR balanced with phantom power (+48v)
• Input Sensitivity/Impedance:
  • Source 1: 350mV/47KΩ
  • Source 2: 350mV/47KΩ
  • Source 3: 350mV/47KΩ
  • Source 4: 350mV/47KΩ
• Signal To Noise Ratio: >73dB
• Frequency Response: 70Hz-16KHz (+1,-3dB)
• Control:
  • Bass: ±10dB
  • Treble: ±10dB
• Chime: 2 and 4 tone options
• Output Sensitivity /Impedance: 1000mV/470Ω
• Output Rec/Impedance: 200mV/470Ω
• Distortion: <0.1%
• Operating Condition: 120V AC, 24V DC (Optional)
• Dimensions (D x W x H): 19 x 14.3 x 3.5 inches
• Power Consumption: 480 watts
• Weight: 36.4 lbs

Usage Features:

• Front Panel Controls:
  • Source Selection Buttons: Direct selection of audio sources.
  • Source LEDs: Indicate active signal from the appropriate source.
  • Output Level Meter: Displays the master volume output level.
  • Power LED: Blue indicates the amplifier is on; Red indicates protection mode.
  • Microphone Gain Controls: Independent gain adjustment for each microphone input.
  • Source Gain Control: Gain adjustment for the selected audio source.
  • Bass / Treble Adjustments: Fine-tune the tone of the amplifier output.
  • Master Volume Control: Adjusts the overall output volume from all sources and microphones.
  • Power Switch: Toggles power on and off.
• Rear Panel Controls:
  • Optional 24V DC Power Input: For connecting to a 24V DC power supply.
  • Chime Selection Switch: Sets the number of chimes (2 or 4) when the Chime Trigger is activated.
  • Microphone Priority Dipswitch: Configures mic ducking behavior for the four microphone inputs (mic signal overrides sources or mixes with them).
  • Chime Volume: Adjusts the volume level of triggered chimes.
  • Phantom Power Switches: Enable or disable +48V phantom power for each XLR microphone input.
  • Microphone Gain Controls: Sets the gain level for each mic input.
  • Chime Remote Trigger: Connects to a door or other triggering source for chimes.
• Advanced Connections:
  • External Audio Processing: The Pre Out and Amp In connections, with a removable jumper, allow for the insertion of external audio processing equipment (e.g., equalizers) to tailor the output to the installed environment. When using an external processor, the Master Volume, Bass, and Treble controls affect the signal sent to the processor.
  • Cascading Amplifiers: Multiple ECA-70MIXAMP-1-240 units can be linked using the unbalanced Rec Line Out of one amplifier to a Source Input of another. This allows for expanded audio distribution. The Rec Line Out is affected by Bass and Treble controls, so tone adjustments should be made on the primary amplifier first.

Installation and Maintenance Features:

• Positioning:
  • Requires a well-ventilated area to ensure adequate cooling.
  • Cooling vents on both sides of the unit should not be blocked.
  • Avoid placing on carpeting or similar materials.
  • Do not install near heat sources or in extremely humid/wet locations.
  • Requires a minimum of 5 inches of free air space above the unit and 3 inches on either side (not applicable for rack mounting).
  • Minimum of 2 inches of depth behind the unit for cables and connectors.
• Rack Mounting:
  • Remove the amplifier's four feet before rack mounting.
  • Attach included rack-mount ears to the front sides.
  • Securely mount in an equipment rack, occupying 2U of space.
  • It is recommended to leave ventilation space between components, even though the amplifier produces little heat.
• Safety Instructions: Emphasizes reading and following all instructions, avoiding exposure to moisture, proper ventilation, and referring servicing to qualified personnel.
• Troubleshooting Guide: Provides solutions for common issues such as the amplifier not turning on, the power LED being red (protection mode), hum or buzzing sounds, and no audio from speakers or microphone inputs.
• Fuse: Replaceable main power fuse.
• Warranty: 5-Year Limited Warranty covering parts and labor for defects in material or workmanship under normal use. Excludes abuse, modification, or disassembly. Requires prior notification and an assigned Return Authorization Number (RA) for repairs.

Episode ECA-70MIXAMP-1-240 Specifications