Summary of Contents for Emtech Electronics IA-204 SERIES
- Page 1 IA-204 SERIES IN-WALL AMPLIFIERS INSTALLATION MANUAL ©Emtech Electronics, Inc. 1126 N. 1200 West Orem, Utah 84057 1-866-200-2878...
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Page 2: Important Safety Information
LIABILITY Emtech Electronics does not accept any liability for injury or damages to persons or property due to the improper use or application of this equipment. Furthermore, no liability is assumed for any lost time or earnings due to the failure of this equipment to operate properly other than the terms and conditions outlined in the Warranty. -
Page 3: System Features
INTRODUCTION Thank you for choosing an Emtech Electronics Product. The IA-204 series of In-Wall Amplifiers are the intelligent solution for single and multi-room sound reinforcement applications were rack space does not exist for a sound system. The IA-204 system requires no special training for your personnel or guests. There are no confusing, elaborate programming sequences necessary to adapt the system to different room configurations. -
Page 4: Site Preparation
Operating the IA-204 series of in-wall amplifiers is simple. Just follow these three steps: Turn the POWER switch to the ON position (LED will illuminate). Set your input source on INPUT 1 or INPUT 2 to either mic or line using the switches. -
Page 5: Power Supply
IA-204 Location The suggested mounting height for the IA-204 is approximately 48” – 66” from the floor. • • The mounting location for the IA-204 depends upon many factors, such as the room layout, input location, distance to the power supply, etc. Mounting The IA-204 fits into a common 4 gang deep masonry electrical box (RACO 698 or equivalent). - Page 6 NOTE - This information is applicable only to the power supplies available from Emtech Electronics. If you choose to use a different power supply, please follow the manufacturers instructions. Location A central location is most desirable for the power supply.
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Page 7: Recommended Cables
CONNECTING THE IA-204 WIRING Microphone and line input signals require shielded cables. • If using the RCM-42B Room Combining Matrix, use shielded cables to connect the RETURN and SEND • between the IA-204 and RCM-42B. Each IA-204 is shipped with jumpers on the seven pin orange screw terminal connector between pins 4 and 6, and 5 and 7. -
Page 8: J1 10 Pin Connector
IA-204P Figure 3 shows the screw terminal connections for the IA-204P. 10 PIN CONNECTOR PIN 1 Mic 1 and Line 1 ground • PIN 2 Mic 1 + input • PIN 3 Mic 1 – input • • PIN 4 Line 1 + input PIN 5 Line 1 –... - Page 9 Figure 4 shows the screw terminal connections for the IA-204R. 10 PIN CONNECTOR • Same as IA-204P 7 PIN CONNECTOR PIN 1 Power supply ground • • PIN 2 Power Supply + input 24 vdc PIN 3 No connection • PIN 4 Send- •...
- Page 10 NOTE! When using the IA-204S with the RCM-42B Room Combining Matrix, you will need a single-pole, double- throw center off switch to provide for control of the Room Combining feature. This switch connects to the same Room Combining channel as the IA-204S. Figure 5 shows the screw terminal connections for the IA-204S.
- Page 11 Step 1: Draw room speaker layout.
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Page 12: Testing And Troubleshooting
Step 2: Circle desired Zone A and Zone B speakers. Step 3: Connect speakers. Example below Zone A or Zone B (Shaded) Figure 7. Laying out Head Table Speaker Zones TESTING & TROUBLESHOOTING POWER SUPPLY The power supply voltage (24 VDC) and polarity should be checked at the connector of each IA-204 and •... - Page 13 NOTE If the preceding checks do not correct the symptoms, then service should be referred to Emtech Electronics. There are no user serviceable parts contained within the IA-204. For your own safety and to protect the warranty on the IA-204, do not attempt any unauthorized repair of the IA-204.
- Page 14 Block Diagram of the RCM-42B RCM-42B ROOM COMBINING MATRIX FEATURES Allows up to four IA-204’s to share program material. • • Provides two combining busses for your IA-204 system. Digitally controlled switching for ease of operation. • Uses screw terminal connectors for fast and reliable installation. •...
- Page 15 Mount the RCM-42B in a convenient location, such as next to the power supply. • There are 4 screw terminal connectors on the RCM-42B. Each of these connectors is labeled for a specific • room, room one through room four. The room one connector has two extra pins for the power supply inputs.
- Page 16 The INPUT – and INPUT + terminals are connected to the SEND – and SEND + wires from the IA-204. • The OUTPUT – and OUTPUT + terminals are connected to the RETURN – and RETURN + wires from • the IA-204.
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Page 17: Specifications
SPECIFICATIONS Power Out……………………………………………………… ………………………….20 Watts RMS into 8 ohms. ………………………………………………………………………………………………25 Watts RMS into 4 ohms. Mic Input Sensitivity.………………………………………………………………………………………………5 mV. Line Input Sensitivity…………………………………………………………………………………………….100 mV. Frequency Response…………………………………………………………………………………± 3dB 30 to 18Khz. Distortion…………………………………………………………………………………………………Less than .04%. Mic Input Impedance…………………………………………………………………………………………….3 k ohms. Line Input Impedance…………………………………………………………………………………………...20 k ohms. ACCESSORIES MSC panels see MSC series brochure... -
Page 18: Warranty
IA-204, lack of reasonable care, loss of parts, or subjecting the IA-204 to input values of a magnitude in excess of those specified. Repair by other than Emtech Electronics will void this warranty. EMTECH ELECTRONIC, INC.
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