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Summary of Contents for JDM MA-900A
- Page 1 JD-MEDIA SETREO POWER AMPLIFIER MA-300A,600A,900A CHANNEL A CHANNEL B www.jd-media.co.kr POWER PROTECTION MA-900A Clip Signal Power Power Signal Clip STEREO POWER AMPLIFIER - dB - dB...
- Page 2 CHANNEL B POWER www.jd-media.co.kr PROTECTION MA-600A Clip Signal Power Power Signal Clip STEREO POWER AMPLIFIER - dB - dB CHANNEL A CHANNEL B www.jd-media.co.kr POWER PROTECTION MA-900A Clip Signal Power Power Signal Clip STEREO POWER AMPLIFIER - dB - dB...
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Page 3: Safety Instructions
SAFETY INSTRUCTIONS Read all safety instruction before operating the MA-Series amplifiers. 1. Install equipment as follow conditions. Install at flat place, not bending curved. Do not install near the water and moisture. Locate power amplifier away from heat source, such as radiators or other device that produce heat. -
Page 4: Signal Led
RONT PANEL CONTROLS CHANNEL A CHANNEL B POWER www.jd-media.co.kr PROTECTION MA-900A Clip Signal Power Power Signal Clip STEREO POWER AMPLIFIER - dB - dB 1. LED 1. LED INDICATOR PROTECT LED PROTECT LED Protect LED light with the protection circuit activated: (in-rush 1. - Page 5 T8AL 250V T4AL 250V T8AL 250V MA-600A T15AL 250V MA-900A T20AL 250V T10AL 250V 3. BALANCED XLR, PHONE INPUTS Normal input level is 1.6V (+4dBu) 15K balanced with channal A,B XLR and 1/4" phone jack input terminal for the extension to another amplifier connect link jack to another amplifier input jack.
- Page 6 CHANNEL A CHANNE CHANNE CHANNEL A CHANNEL B CHANNE CHANNE CHANNEL B www.jd-media.co.kr www jd www.jd -media -media .co.kr co kr POWER POWER POWER POWER PROTECTION MA-900A Clip Signal Power Power Signal Clip STEREO POWER AMPLIFIER - dB - dB...
- Page 7 ONNECTIONS Wiring the following instructions describe the most common ways to install your amplifier into a sound system. 1. First, turn off power switch befor connection. 2. Refer to wirning diagram for speaker connection. 3. MA-Series amplifier maybe operated in one of two modes (stereo, bridge-mono) 4.
- Page 8 Input Wiring Tips BALANCED SHIELD FROM INPUT SOURCE SHIELD METHOD 2 UNBALANCED AUDIO SHIELD SIGNAL FROM INPUT SOURCE SHIELD Ch-B Ch-A Ch-B Ch-A STEREO POWER AMPLIFIER JD-MEDIA CO., LTD. Ch-B Ch-A Ch-B Ch-A BRIDGED Ch-B Ch-A/BRIDGED BRIDGE MONO STEREO METHOD 1...
- Page 9 More Than 100dB(Each CH.) ("A" Weighted) Power (Option) AC 120V/220V/230V, 50-60Hz Dimensions 483(W) x 88(H) x 370(D)mm 19(W) x 3.5(H) x 14.5(D)inch Weight MA-300A : 11.2kg MA-600A : 14.0kg MA-900A : 14.4kg NOTE Specifications and design subject to change without notice for improvements.
- Page 10 BALANCED LEVEL DIF AMP VOLTAGE AMP PO WER AMP INPUT LINK CURRENT LIMITER BIAS DRIVER OUTPUT SENSOR OUTPUT CURRENT SIGNAL LIMITER INDICATOR DRIVER COMP PROTECT 1.6V RMS CLIP INDICATOR +4dB NEGATIVE FEEDBACK SPEAKER INDICATOR PROTECTOR 15Kohm BALANCED CH1/BRIDGED INVER TING MONO OUTPUT SERVO LEVEL...
- Page 12 435-831 www.jd-media.co.kr 3-11, Yodang-rim Yanggam-myun Tel : +82-31-366-6400 JD-MEDIA CO.,LTD. Fax : +82-31-366-6404 Whasung-city, Kyung-Gi do, KOREA C/N : 4M-MA300A-02...
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