OWNER’S MANUAL
ECA-70MIXAMP-1-120
100V / 70V / 50V / 4Ω Amplier
ECA COMMERCIAL AMPLIFIER
ECA-70MIXAMP-1-120
SOURCE 1
SOURCE 2 SOURCE 3 SOURCE 4
MIC 1 MIC 2 MIC 3 MIC 4 SOURCE BASS TREBLE
5 5 5 5 5
6 6 6 6 6
4 4 4 4 4
7 7 7 7 7
3 3 3 3 3
8 8 8 8 8
2 2 2 2 2
9 9 9 9 9
1 1 1 1 1
10 10 10 10 10
0 0 0 0 0
OUTPUT LEVEL
MASTER
5
6
00
+12+12 -12-12
4
3
7
8
2
9
1
0
10
POWER
ON
OFF
Important Safety Instructions
ECA-70MIXAMP-1-120 Installation Manual
WARNING:
1. Read and follow all instructions and warnings in this manual. Keep for future reference.
2. Do not use this apparatus near water.
3. Clean only with a dry cloth.
4. Do not block any ventilation openings. Install according to manufacturer’s instructions.
5. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including ampliers) that produce heat.
6. Do not override the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades - one wider than the other.
A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the
provided plug does not t into your outlet, consult an electrician for replacement of the obsolete outlet.
7. Protect the power cord from being walked on or pinched particularly at plug, convenience receptacles, and the point where it exits from
the apparatus.
8. Only use attachments/accessories specied by the manufacturer.
9. Use only with a cart, stand, tripod, bracket or table specied by the manufacturer, or sold with the apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid injury from tip-over.
10. Unplug this apparatus during lightning storms or when unused for long periods of time.
11. Refer all servicing to qualied service personnel. Servicing is required when the apparatus has been damaged in any way, such as when
the power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally, or has been dropped.
12. DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR SPLASHING AND ENSURE THAT NO OBJECTS FILLED WITH LIQUIDS,
SUCH AS VASES, ARE PLACED ON THE EQUIPMENT.
13. TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG
FROM THE AC RECEPTACLE.
14. THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE.
To reduce the risk of re or electric shock, do not expose this apparatus to rain or moisture.
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL..
CAUTION
CAUTION: TO REDUCE THE RISK OF
ELECTRICAL SHOCK.
DO NOT REMOVE COVER. NO USER
SERVICEABLE PARTS INS IDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
© 2012 Episode®
The lightning flash with arrowhead symbol, within an equilateral triangle,
is intended to alert the user to the presence of un-insulated dangerous
voltage within the product’s enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the appliance.
pg. 3
ECA-70MIXAMP-1-120 Installation Manual
Table of Contents
Important Safety Instructions ......................................................................................................................................................................
Overview ........................................................................................................................................................................................................
Important Instructions and Considerations ...............................................................................................................................................
Features .........................................................................................................................................................................................................
Front Panel ....................................................................................................................................................................................................
Rear Panel .....................................................................................................................................................................................................
Installation .....................................................................................................................................................................................................
Positioning the Amplier ................................................................................................................................................................................................
Rack Mounting ..............................................................................................................................................................................................................
Standard Connections ...................................................................................................................................................................................................
Advanced Connections .................................................................................................................................................................................................
External Audio Processing ....................................................................................................................................................................................
Cascading Ampliers ............................................................................................................................................................................................
Verifying Phase ...........................................................................................................................................................................................
Specications .............................................................................................................................................................................................
Troubleshooting .........................................................................................................................................................................................
Contacting Technical Support ..................................................................................................................................................................
Warranty ......................................................................................................................................................................................................
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pg. 4
Overview
Episode® is one of the most highly-regarded brands of ampliers available today. We appreciate your business and we stand committed
to providing our customers with the highest degree of quality and service in the industry.
The Episode® ECA-70MIXAMP-1-120 Commercial Amplier Mixer is a superb choice for a variety of commercial applications requiring
paging and multi-source background music. It has been designed with advanced mixing features and produces 120W RMS, providing
the best value and quality for your commercial audio needs.
Important Instructions and Considerations
Read and understand all instructions.
Before beginning installation, carefully plan location accounting for potential electrical, plumbing or other obstacles.
Features
• 120 Watts RMS, 1 Channel
• AC and DC power options
• Low-Frequency lter protection
• Power level meter
• Detachable locking output connector for secure easy connections
• (4) Selectable Source inputs
• Optional 2 or 4 tone chimes triggered by a contact closure
• Preamp output for signal processing equipment or additional amplication
• Individual input volume and master volume controls
• Current limiter, short circuit and thermal protection
• (4) Balanced XLR microphone inputs with selectable priority and phantom power options
• Constant Voltage Options, 100V, 70V and 50V
• 4 or 8 Ohm speaker output capable
• Fixed Level Rec Output
ECA-70MIXAMP-1-120 Installation Manual
© 2012 Episode®
pg. 5
ECA-70MIXAMP-1-120 Installation Manual
Front Panel
1 2
5 7 8 9
1. Source Selection Buttons
Direct Selection of sources.
2. Source LEDs
Indicates active signal from appropriate source.
3. Output Level Meter
Master volume output level.
4. Power LED
BLUE – Amplier is On
RED – Amplier is in Protection
5. Microphone Gain Controls
Independent gain for the appropriate microphone.
6. Source Gain Control
Gain for all sources connected to the amplier.
7. Bass / Treble Adjustments
Adjusts the tone for the amplier output.
8. Master Volume Control
Controls the output for the amp from all sources and microphones.
9. Power Switch
6
3 4
pg. 6
Rear Panel
1 2 3 4 5 6
ECA-70MIXAMP-1-120 Installation Manual
7 8 9 10 12 13 14 15
1. Optional 24V DC Power Input
Connect to a 24V DC Power Source when lower voltage input is
desired.
2. Chime Selection Switch
Sets the amount of chimes heard when the Chime Trigger is
activated. 2 times or 4 times.
3. Microphone Priority Dipswitch
Sets mic ducking for the 4 Mic inputs.
On Mic signal overrides sources (Source signal interrupted
by Mic Signal)
Off Mic signal mixes with sources (Source signal and Mic
Signal output simultaneously.)
4. Chime Volume
Sets the volume level of when Chimes are triggered.
5. XLR Pre Out
Balanced XLR output attenuated by Master Volume control.
Note: Output level is affected by Source and Mic gain, and Bass and
Treble controls.
6. Speaker Output Connector
Connections for 50V, 70V, 100V, or 4Ω speakers attenuated by
Master Volume
Note: Output level is affected by Source and Mic gain, and Bass
and Treble controls.
7. IEC Power Cord
Detachable power for amplier.
8. AC Fuse
Replaceable main power fuse.
11
9. Phantom Power Switches
Off Unpowered Mic
On Provides phantom power to microphones with this
capability.
10. Microphone 1-4
Balanced XLR input for microphones.
11. Microphone Gain Controls
Sets the gain level for the appropriate mic input
12. Source Inputs
Unbalanced RCA stereo input for audio sources.
13. Rec Line Output
Unbalanced RCA stereo xed level output.
Note: Output level is affected by Source and Mic gain, and Bass and
Treble controls.
14. Pre Out / Amp In
Unbalanced RCA mono output and input attenuated by Master
Volume control. Jumper can be removed for use with External
Audio Processor.
Note: Output level is affected by Source and Mic gain, and Bass and
Treble controls.
15. Chime Remote Trigger
Connect the output of a door or other triggering source
© 2012 Episode®
pg. 7
ECA-70MIXAMP-1-120 Installation Manual
Installation
Positioning the Amplier
Episode ampliers are designed to help deliver a great audio experience that makes your music come alive for years to come. However,
where you place the amplier can have a large effect on the performance that you receive and the life of the unit.
• Be sure that the unit is in a well-ventilated
area that provides adequate cooling.
• Do not block the cooling vents located on
both sides of the unit.
• Do not place the unit on carpeting or any
similar material.
• Do not install the unit near a source of heat,
or in an extremely humid or wet location.
• If your installation lacks good air ow (such
as solid cabinet doors or wall-mounted
racks), it may be necessary to create
ventilation to allow outside air into the space.
• Allow a minimum of 5” of free air space
above the unit.
• Allow a minimum of 3” of free air space on
either side of the unit. (Does not apply to rack
mounting)
Minimum of 5" of free air
space above.
5"
3"
Minimum of 3" free air
space on each side.
3"
Minimum of 2” of depth behind unit
to accommodate cables and
connectors.
2"
Rack Mounting
1. Remove the amplier’s four feet from the bottom
of the chassis.
Note: DO NOT place the screws back into the chassis.
Without the feet, the length of the screw may touch
internal components and effect the performance of the
amplier.
2. Attach the included rack-mount ears to the front
sides of the amplier chassis.
3. Securely mount the amplier into an equipment
rack. The amplier will occupy 2U of rack space.
4. Even though the amplier produces very little
heat, it is always wise to leave ventilation
between components.
ECA-70MIXAMP-1-120
MIC 1 MIC 2 MIC 3 MIC 4 SOURCE BASS TREBLE
5 5 5 5 5
6 6 6 6 6
4 4 4 4 4
7 7 7 7 7
3 3 3 3 3
8 8 8 8 8
2 2 2 2 2
9 9 9 9 9
1 1 1 1 1
10 10 10 10 10
0 0 0 0 0
SOURCE 1
SOURCE 2 SOURCE 3 SOURCE 4
POWER
OUTPUT LEVEL
MASTER
5
6
4
00
3
7
ON
8
2
+12+12 -12-12
OFF
9
1
0
10
pg. 8
ECA-70MIXAMP-1-120 Installation Manual
12
3123123123
INPUT~120V60Hz 160W
Fuse:T6.3AL 250V
SOURCE4 REC PRE OUT
AMPIN
PHANTOMMIC PHANTOMMIC PHANTOMMIC PHANTOMMIC
CHIME
BATTSUPPLY
SerialNumber
SOURCE3 SOURCE2 SOURCE1
Engineeredinthe U.S.A
ManufacturedinChina
24V
8A
MixerAmplifi e
GAIN
MIC1
GAIN
MIC2
GAIN
MIC3
GAIN
MIC4
OFF OFF OFF OFFON ON ON ON
+48V +48V +48V +48V
MICPRIORITY
ON
OFF
2T
4T
CHIME
CHIME
VOLUME
XLRBAL
1-GND
2-HOT+
3-COLD-
INPUTS PREOUT
100V
70V
50V
COM
4
POWEROUT
Class2Wiring
120W
CommercialAmplifi er/Mixe
4VG8
E330247
BALANCED
RECOUT
CHIME
MixerAmplifi e
100V
70V
50V
COM
4
POWEROUT
Class2Wiring
120W
256
PLAY
256
XLRBAL
1-GND
2-HOT+
3-COLD-
INPUTS
PRE OUT
Standard Connections
While the ECA-70MIXAMP-1-120 can be used in a variety of congurations, the diagram below shows the basic application.
ECA-70MIXAMP-1-120
External Processor (EQ)
Music Player
Blu-ray / DVD Player
PBX (Phone Paging)
XLR Pinouts
Speaker Connections
70V
Total Impedance 41Ω
Media Server
Important Note:
• The4ΩandConstantVoltageoutputscannotbeusedsimultaneously
• TotalimpedanceLoadindicatedinthebelowdiagram.
50V4ΩCOM
100V
70V
50V
Total Impedance 21Ω
100V
70V
50V4ΩCOM
© 2012 Episode®
100V
Total Impedance 83Ω
50V4ΩCOM
100V
70V
Standard Speakers
Minimum Impedance 4Ω
50V4ΩCOM
100V
70V
pg. 9
ECA-70MIXAMP-1-120 Installation Manual
External Processor (EQ)
AMPIN
CHIME
100V
70V
50V
COM
4
CHIME
MixerAmplifi e
100V
70V
50V
COM
4
POWEROUT
Class2Wiring
120W
Advanced Connections
External Audio Processing
The ECA-70MIXAMP-1-120 allows for external audio processing to equalize the output to suit the installed environment. This is
achieved by using the unbalanced Pre Out and Amp In connections.
Note: This connection is affected by Master Volume, Bass and Treble Controls., keep this in mind when calibrating the external processor.
1. Remove the jumper between the Pre Out and Amp In Connections.
2. Connect the Pre Out to the input of the external processor.
3. Connect the output of the external processor to the Amp In connection.
4. Adjust the master volume to the 12 o’ clock position; this will provide an output level in the middle of the volume range.
5. Calibrate the external processor following the instructions provided with that device.
Remove Jumper
ECA-70MIXAMP-1-120
Cascading Ampliers
Multiple ECA-70MIXAMP-1-120 can be used in a system where more audio distribution is needed. This is achieved by using the
unbalanced Rec Line Out to send the signal from Amp1 to the additional ampliers.
Note: The Rec Line Out is affected by Bass and Treble controls; adjust the tone of Amp1 rst and then adjust the tone of the additional ampliers.
1. Connect the Rec Line Out of Amp1 to a Source on Amp2.
2. Set the gain for the source used to Max, allowing for the volume from Amp1 mics/sources to be at the highest level.
3. Repeat for additional ampliers.
4. Adjust the tone of Amp1 and then adjust the additional amps in order (Amp1, Amp2, etc.).
pg. 10
Verifying Phase
When proper polarity is not maintained, the speakers play at the opposite ‘time’ from each other, or out of phase. The result is audio with
lack of bass and vocals that sound thin or distant. If during or after calibrating your receiver you suspect the sound is not right and you
cannot see any markings on the wire to verify polarity is correct, try this simple test:
1. Sit in the normal listening position for the system.
2. Play some music and listen for the following characteristics.
A. Does the bass sound full and even with the other audio?
B. Do the vocals sound centered and even in volume?
If either of the answers are YES, follow steps 3 and 4 with the other loudspeakers in the system.
3. Turn off the amplier and reverse the connections for one of the speakers.
4. Repeat your test at the same volume level. When the sound has the loudest and best sounding bass, and vocals are centered
and clear, your connections are correct and in-phase.
ECA-70MIXAMP-1-120 Installation Manual
© 2012 Episode®
pg. 11
ECA-70MIXAMP-1-120 Installation Manual
Specications
Rated Power Output 120 watts
4 Microphone Inputs XLR balanced with phantom power
Sensitivity -50/-2 dB 2.5/500 MV
Signal To Noise Ratio >68 dB
Frequency Response 40/17.000 hz (-3 dB)
Phantom Power +48 v
Input Sensitivity/Impedance Source 1: 500MV/47 kΩ
Signal To Noise Ratio 90 dB
Frequency Response 40 - 18 kHz (-3 dB)
Control
Bass ± 12 dB
Treble ± 12 dB
Chime 2 and 4 tone options
Output Electro/Impedance 775 MV / 47 kW
Output Rec/Impedance 200 MV / 1 kW
Distortion <0.1%
Operating Condition
AC Mains Input 120V AC, 24V DC (Optional)
Dimensions (D x W x H) 19” x 14.3” x 3.5”
Power Consumption 160 watts
Weight 24 lbs.
Source 2: 200MV/47 kΩ
Source 3: 500MV/47 kΩ
Source 4: 200MV/47 kΩ
pg. 12
Troubleshooting
ECA-70MIXAMP-1-120 Installation Manual
No audio from any channel.
No audio from one or more channels.
No audio from one channel or one zone only.
• Power cable to the amplier is incorrectly connected or
plugged into an outlet that does not have power. Check
connections and verify power on the outlet.
• Audio cable to the source component is not connected
properly, input or the cable is defective. Check connections
or replace cable with one that has been veried as good.
• Audio cable to the source component is not connected
properly or the cable is defective. Check connections or
replace cable with one that has been veried as good.
• The Bridging switch is positioned incorrectly. Refer to installation instructions for proper settings.
• Check the connections of the speaker wire at both the
speaker and amplier.
• Check the front panel LED for the channel that is not working. If it is red, there may be a short on either one of the
speaker wires for that channel. Check wires and speaker
connections for shorts.
• The level adjustment on the channel is turned down. Turn it
slowly to the right to raise the volume.
• Test the bad channel by connecting it to a speaker that you
know works.
Hum or buzzing sound is heard.
Amplier will not turn on.
Front Power Button Inoperative
Note: If any of the troubleshooting methods listed above do not resolve the issue, please contact our Technical Support department.
Contacting Technical Support
Phone: (866) 838-5052
Email: Techsupport@snapav.com
• Audio cable to the source component is not connected
properly or the cable is defective. Check connections or
replace cable with one that has been veried as good.
• The Bridging switch is positioned incorrectly. Refer to installation instructions for proper settings.
• Check the connections of the speaker wire at both the
speaker and amplier.
• Check RCA input cables by removing them one at time
(powering down the amplier before disconnecting) and
checking to see if a connection or cable is to blame.
• The amplier must be plugged into a live outlet.
• The power switch on the back panel must be on.
• Ensure 12V is present if using the trigger input.
• Set the Power Mode Switch to ON.
© 2012 Episode®
pg. 13
ECA-70MIXAMP-1-120 Installation Manual
Warranty
5-Year Limited Warranty
Episode® Amplier Products have a 5-Year Limited Warranty. This warranty includes parts and labor repairs on all components
found to be defective in material or workmanship under normal conditions of use. This warranty shall not apply to products
which have been abused, modied or disassembled. Products to be repaired under this warranty must be returned to SnapAV
or a designated service center with prior notication and an assigned return authorization number (RA).
pg. 14
121019-1253
© 2012 Episode®
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