Operation Manual 1CH/2CH Digital Power Amplifier DPA-130DC/230DC
1CH/2CH DIGITAL 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.
1CH/2CH DIGITAL POWER AMPLIFIER Contents Unpacking .......................................................................................................................................2 Installation Environment....................................................................................................................................2 Important Safety Instructions.............................................................................................................2 Features................
1CH/2CH DIGITAL POWER AMPLIFIER Unpacking Although your DPA-130DC/230DC 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.
1CH/2CH DIGITAL POWER AMPLIFIER Features - 1U rack size - High power PA amplifier, 300W(DPA-130DC) /300W x 2(DPA-230DC) - Operating for Emergency power (DC 24V) - Independent SMPS(switching-mode power supply) for each channel - Low power consumption, low heat dissipation and light weight - High quality (THD less then 0.03% for 100W and less than 0.03% for 300W, S/N.
1CH/2CH DIGITAL 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.
1CH/2CH DIGITAL POWER AMPLIFIER Front Panel – DPA-130DC 1 2 3 DPA-130DC POWER AMPLIFIER 4 5 6 7 – DPA-230DC 1 2 3 DPA-230DC 2 CHANNEL POWER AMPLIFIER 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.
1CH/2CH DIGITAL POWER AMPLIFIER 5. VOLUME CONTROL Adjust the input level of each channel. To increase the volume level, turn the volume clockwise. The volume control range can be set both 0dB ~ -12dB and 0dB ~ minimum by changing the volume range setting switch internally. (See page 9). NOTE: Service personnel only. 6. HIGH PASS FILTER SWITCH Pressing the switch turns on the high pass filter.
1CH/2CH DIGITAL POWER AMPLIFIER Rear Panel – DPA-130DC 1 2 3 4 5 6 OUTPUT INPUT 33.3Ω REMOTE POWER (100V) FAN GND DC INPUT 24V + AC INPUT – DPA-230DC 7 1 2 4 CH 1 ON : PARALLEL OFF : NORMAL REMOTE POWER CH 2 CH 1 (100V) (100V) 33.3Ω FAN 2 6 33.3Ω FAN 1 GND 5 OUTPUT INPUT CH 2 3 GND DC INPUT 24V + AC INPUT 1. INPUT TERMINALS Connect signal input cables to these terminals. The input circuitry is balanced type. (+ : Hot, - : Cold, GND: Ground) 2.
1CH/2CH DIGITAL POWER AMPLIFIER 5. FAN It is the cooling fan vents. When inner temperature reaches the certain level, the speed of the fan gets faster. Please give attention not to block the vents when install the unit. 6. AC INLET Connect the supplied power cord to this inlet. 7. PARALLEL SWITCH(DPA-230DC ONLY) - NORMAL MODE It operates on NORMAL MODE when switch is off. CH1 and CH2 are received different input signals each channel, and volume operate seperately.
1CH/2CH DIGITAL 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. NOTE: Service personnel only. 1. Volume Range: 0dB ~ minimum (factory default) CP207 VR200 2. Volume Range: 0dB ~ -12dB VR200 CP207 pull out To change the volume range from 0dB ~ minimum to 0dB ~ -12dB, pull out the connector connected to the CP207.
1CH/2CH DIGITAL 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 (DPA-130DC) .... 10W 10W 10W 10W HIGH IMPEDANCE SPEAKER INSTALLATION (DPA-230DC) .... 10W 10W 10W 10W Only connect speakers with an impedance equal to or greater than those specified below.
1CH/2CH DIGITAL POWER AMPLIFIER Applications – DPA-130DC MIC IMX-416 OUTPUT INPUT REMOTE POWER 33.
1CH/2CH DIGITAL POWER AMPLIFIER Applications – DPA-230DC MIC IMX-416 OUTPUT INPUT CH 2 CH 1 ON : PARALLEL OFF : NORMAL REMOTE POWER CH 2 CH 1 (100V) (100V) 33.3Ω FAN 2 33.
1CH/2CH DIGITAL POWER AMPLIFIER Block Diagram – DPA-130DC – DPA-230DC DPA-130DC/230DC 13
1CH/2CH DIGITAL POWER AMPLIFIER Specifications DPA-130DC DAP-230DC Rated Output Power (1kHz, 33.3Ω) Rated Output Power (T.H.D 0.1%, AES17) 300W 300W x 2CH Output Voltage/Impedance 100V / 33.3Ω Input Sensitivity/Impedance 1V / 10 KΩ Balance T.H.D (ASE17) Rated (300W, 1kHz) Less than 0.1 % 1 3 Less than 0.
1CH/2CH DIGITAL POWER AMPLIFIER ※ DIMENSIONS (DPA-130DC) 440 44 420 44 482 DPA-130DC/230DC 15
1CH/2CH DIGITAL POWER AMPLIFIER ※ DIMENSIONS (DPA-230DC) 440 44 420 44 482 16 DPA-130DC/230DC
1CH/2CH DIGITAL 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.
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).
