Operation Manual Multi Channel Power Amplifier DPA-430H
MULTI CHANNEL POWER AMPLIFIER Welcome A personal welcome to you from the management and employees of Inter-M All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value, and we are delighted you have purchased one of our products. We sincerely trust this product will provide years of satisfactory service, but if anything is not to your complete satisfaction, we will endeavor to make things right.
MULTI CHANNEL POWER AMPLIFIER Contents Unpacking .......................................................................................................................................2 Installation Environment....................................................................................................................................2 Important Safety Instructions.............................................................................................................2 Features..................
MULTI CHANNEL POWER AMPLIFIER Unpacking Although your DPA-430H is neither complicated nor difficult to operate, we recommend you take a few minutes to read this brief manual and familiarize yourself with the important information regarding product features, setup and operation. As with most electronic devices, we strongly recommend you to retain the original packaging. In the unlikely event the product must be returned for servicing, the original packaging (or reasonable equivalent) is required.
MULTI CHANNEL POWER AMPLIFIER Features - 1U Rack Size - Multi channel power amplifier, 300W x 4 channel (100V/33.3Ω or 70V/16.
MULTI CHANNEL POWER AMPLIFIER Precautions 1. Do not connect outputs of two or more channels in parallel. 2. Do not connect speakers with a smaller impedance than specified to avoid the damage of the unit. 3. Keep the input cable away from the output cable. Installation Precautions 1. When mounting the unit in an rack, the inside of the rack must be sufficiently ventilated. To achieve sufficient ventilation, remove panel on the rear of the rack or use Fan at the top of the rack. 2.
MULTI CHANNEL POWER AMPLIFIER Front Panel 1 2 3 4 5 6 7 1. POWER SWITCH Pressing this switch turns the unit on. Pressing it again turns the unit off. 2. POWER LED When the unit is powered on, the Power LED lights Green. When the power is off, the Power LED lights Red. 3. OUTPUT LEVEL INDICATOR The –30dB LED lights green when an output signal level exceeds about -30dB. The –10dB LED lights green when an output signal level exceeds about -10dB.
MULTI CHANNEL POWER AMPLIFIER 6. HIGH PASS FILTER SWITCH Pressing the switch turns on the high pass filter. The corner frequency (-3dB) is 65Hz when the high pass filter switch is off or 400Hz when the high pass filter switch is on. NOTE: When the unit is connected with horn speaker, the high pass filter must be set to ON. If not use the high pass filter, it may damage the connected speakers, possibly resulting in fire. 7. VENTILATION It is the air vents.
MULTI CHANNEL POWER AMPLIFIER Rear Panel 1 2 3 4 1. INPUT TERMINALS Connect signal input cables to these terminals. The input circuitry is balanced type. (+ : Hot, - : Cold, GND: Ground) 2. SPEAKER OUTPUT TERMINALS Connect speaker cables to these terminals. Only connect speakers with an impedance equal to or greater than those specified below. Country Europe USA /Canada Speaker Output 100V 70V Speaker Impedance (CH1~CH4) 33.3Ω 16.
MULTI CHANNEL POWER AMPLIFIER Volume Range Setting The volume control range can be set both 0dB ~ -12dB and 0dB ~ minimum by changing the volume range setting internally. The factory default setting is 0dB ~ minimum. 1. Volume Range: 0dB ~ minimum (factory default) CP207 VR200 2. Volume Range: 0dB ~ -12dB VR200 To change the volume range from 0dB ~ minimum to 0dB ~ -12dB, pull out the connector connected to the CP207.
MULTI CHANNEL POWER AMPLIFIER Connecting Speakers Before connecting speakers, disconnect the AC power cable. Note the proper connecting terminals as below. Make sure that the total impedance is not less than the rated impedance indicated. HIGH IMPEDANCE SPEAKER INSTALLATION .... 10W 10W 10W 10W Only connect speakers with an impedance equal to or greater than those specified below. Country Europe USA /Canada Speaker Output 100V 70V Speaker Impedance (CH1~CH4) 33.3Ω 16.3Ω NOTE : 1.
MULTI CHANNEL POWER AMPLIFIER Applications 10 DPA-430H
MULTI CHANNEL POWER AMPLIFIER Block Diagram DPA-430H 11
MULTI CHANNEL POWER AMPLIFIER Specifications DPA-430H Rated Output Power 300W x 4 channels Output Voltage/Impedance 100V / 33.3Ω, 70V / 16.3Ω T.H.D (AES17) Prated (300W, 1kHz) 1 3 Less than 0.1% Prated (100W, 1kHz) Less than 0.
MULTI CHANNEL POWER AMPLIFIER ※ DIMENSIONS 440 44 420 44 482 DPA-430H 13
MULTI CHANNEL POWER AMPLIFIER Service Procedures Take steps to insure the problem is not related to operator error or other products within the system. Once it is certain that the problem is related to the product, contact your warranty provider as described in the warranty section of this manual. Variations and Options Variations Variations of this product exist to reflect the variations in AC power requirements throughout the world.
NOTE MA-106 DPA-430H 15 13
NOTE 12 DPA-430H
DPA-430H 3
Inter-M, Ltd. (Korea) began operations in 1983. Since then, Inter-M has grown to become one of the largest manufacturers of professional audio and commercial sound electronics equipment in the world. Inter-M has gained worldwide recognition for its own branded products, as well as private label manufacturing of electronics sold under other names (OEM).
