Operation Manual Public Address Power Amplifier PA-6312/6324/6336/6348 * Rack mount products in the Western Hemisphere(North America, South America, and the Caribbean) do not have handles installed due to customer preference.
PUBLIC ADDRESS 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.
PUBLIC ADDRESS POWER AMPLIFIER Contents Unpacking .......................................................................................................................................2 Installation Environment....................................................................................................................................2 Important Safety Instructions.............................................................................................................2 Features.................
PUBLIC ADDRESS POWER AMPLIFIER Unpacking Although your PA-6312/6324/6336/6348 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.
PUBLIC ADDRESS POWER AMPLIFIER Features - VARIETY OF POWER - 120W (PA-6312), 240W (PA-6324) or 360W (PA-6336) of RMS power, with less than 1% THD. - 480W(PA-6348) of RMS power, with less than 5% THD. - BALANCED INPUT Balanced XLR inputs to reduce ground hum and increase efficiency. - GAIN ADJUSTMENT Input gain is adjustable from –12dB to 0dB (1V) via rear panel control. - EMERGENCY BATTERY BACKUP Emergency battery backup for unexpected AC power failure.
PUBLIC ADDRESS POWER AMPLIFIER Front Panel 1. FAN VENTS These vents provide cool air flow into the unit. It is important to keep them free of obstructions, to prevent the unit from overheating. It is also important to operate the unit in a dust-free environment. 2. PROTECTION INDICATOR This LED indicates the state of the amplifier’s protection circuitry. When the Protection LED is on (illuminated), the protection circuitry is active, indicating that the unit is not operating normally.
PUBLIC ADDRESS POWER AMPLIFIER Rear Panel 1 2 3 www.inter-m.com OUTPUT B A COM 43.8V(4 ) 70V(10.2 ) 100V(20.8 ) ERI ؎@ݕې۾Z JH09002-4007 ॄ܆Ͽࠤ@Z@@ؠॕ ЂʠϿ@Z PA-6348 ܄ÿ@ؖ۾Z AC 220V 60Hz ܄ÿ߾Ͷ@Z 480W ܄ÿ՜ҿ۾Ͷ@Z 600W @ڜܖ܆Z@ ďÖ ࣶڜݖTEL : (02)3493-4120~5 ~AC INPUT 220V 60Hz BALANCED INPUT 1V/10K LINK INPUT(ADJ) HPF ON FUSE : T8AL / 250V GROUND LIFT OFF 12dB 0dB FLOAT FRAME DC INPUT 24V 4 5 6 7 8 9 1.
PUBLIC ADDRESS POWER AMPLIFIER 6. HIGH-PASS FILTER SWITCH This switch activates the high-pass filter circuitry, which decreases frequencies lower than 400Hz by –3dB. The high-pass filter is designed to protect speakers from damage caused by excessive low frequency transients. 7. AUDIO INPUTS These balanced XLR jacks are for the input of audio signal. 8. GROUND LIFT SWITCH This switch provides for connection or disconnection of the amplifier’s ground to AC “earth” ground, to prevent noise from ground loops.
PUBLIC ADDRESS POWER AMPLIFIER Connecting Speakers Before connecting speakers to your PA-6312/6324/6336/6348 unit, be sure to disconnect the AC power cable. Make certain that the total impedance is not less than the rated impedance indicated. For 4Ω speakers, connect the positive (+) connector to the 4Ω terminal and the negative (-) connectors to the COM terminal. For high-voltage distributed systems, connect with matching transformer to the COM and either B or A terminals.
PUBLIC ADDRESS POWER AMPLIFIER Applications CDP ON MIC PP-6213 MIC IN 1 2 MASTER OUTPUT SUB OUT 1 1 2 2 PRIORITY INPUT LINE IN LINE IN LINE IN L L L R R INSERT MIC IN MIC IN LINE IN MIC IN MIC IN LINE IN LINE IN MIC IN LINE IN MIC IN LINE IN MIC IN LINE IN AUX INPUT REC OUT MIC IN DUCK R P.PWR DUCK P.PWR + DC INPUT 24V CH9 CH8 CH7 CH6 CH5 CH4 CH3 CH2 CH1 PA-6312/6324/6336/6348 www.inter-m.com OUTPUT B A COM 43.8V(4 ) 70V(10.2 ) 100V(20.
PUBLIC ADDRESS POWER AMPLIFIER Block Diagram - PA-6312 - PA-6324/6336/6348 PA-6312/6324/6336/6348 9
PUBLIC ADDRESS POWER AMPLIFIER Specifications Rated Output Power (THD 5%, 1kHz) PA-6312 PA-6324 PA-6336 PA-6348 120W 240W 360W 480W Frequency Response (+1/-3dB) 70Hz-18kHz T.H.D Less than 1% High Pass Filter 400Hz, -3dB Gain Control 0dB ~ -12dB S/N Better than 95dB Input Sensitivity/Impedance Output Voltage/Impedance Power Source Power Consumption (1/8 power) Weight (SET) Dimensions (SET) 4Ω/22V 4Ω/31V 4Ω/38V 4Ω/43.8V 41Ω/70V 21Ω/70V 13.6Ω/70V 10.2Ω/70V 83Ω/100V 42Ω/100V 27.
PUBLIC ADDRESS POWER AMPLIFIER ※ DIMENSIONS 280 440 132 482 PA-6312/6324/6336/6348 11
PUBLIC ADDRESS POWER AMPLIFIER Service Procedures Take steps to insure the problem is not related to operator error or other products within the system. Information provided in the troubleshooting portion of this manual may help with this process. 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. Schematic A Schematic is available by contacting your warranty provider.
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).
