User manual HAFLER PRO6000

[. . . ] Strickland, VP Engineering ­2 ­ NOTICE - IMPORTANT SAFETY INFORMATION The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ! enclosure, that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. The lightning flash with arrowhead symbol adjacent to a terminal is intended to alert the user that the terminal is hazardous live. TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. WARNING: 1. READ INSTRUCTIONS All the safety and operating instructions of your Hafler equipment should be read before power is applied to the equipment. 2. [. . . ] This allows most of the PWM action to be reserved for programming and regulation of output voltages. A flyback topology provides the numerous housekeeping low voltages required by various circuits. PROTECTION CIRCUITS Fan control circuit - Each amplifier channel has a fan control circuit that measures the temperature of the heatsink, and adjusts the fan speed accordingly. This thermally-tracking fan speed circuit keeps fan noise to a minimum when power demands are low. Typically the fans will be turning slowly even at idle conditions - although abnormally low room temperatures may allow the fans to turn off completely. The fan control circuit also has a turn-on blast feature that runs the fans at full speed for a few seconds every time the amplifier is turned on. This serves the dual function of cleaning out the air tunnel, and providing a simple means to check the fans for proper operation. If you suspect that the fans are not operating correctly, try turning the amplifier off, then listening or feeling for the turn-on blast when the amplifier is turned back on. Thermal Standby - If excessive heatsink temperature is detected, the individual amplifier channel will go into thermal standby mode. The amplifier will be turned off, and the THERMAL LED illuminates until heatsink temperatures return to normal. At that time the amplifier automatically turns back on, and continues operating normally. NOMAD protection - The amplifier output MOSFETs are protected from excessive power dissipation by NOMAD protection circuitry. In Mono mode the amplifier can be configured for Standard Bridge mono, 70V mono or 100V mono operation. Turn amplifier off before operating this switch. Level Controls - Adjusts the gain of the amplifier. Load Switch - Selects the speaker impedance or transformer voltage that will be connected the output binding posts. In Standard Mode the amplifier can drive 2, 4 or 8 speaker loads. In Constant Voltage Mode the amplifier can drive an array of speakers using 70V or 100V transformers. 10. Output Binding Posts - Connects the speaker array to the amplifier. These jacks allow bare wire, spade lugs or dual banana plugs to be connected to the amplifier. Internal Fans - internal fans keep the amplifier circuitry cool. Allow a minimum of 3" clearance on the front and back of the amplifier vents for adequate ventilation. Chassis/Float ground switch - Isolates Audio Ground and helps eliminate noise in the signal chain. [. . . ] CH B input sensitivity controls 70V mono output level. Amplifier will clip at 70Vrms level. ­ 19 ­ 100V MONO MODE (SR2300/PRO6000) Load 100V 70V 8 4 2 Power 100V 70V 8 4 2 100V 70V 100V 70V SR2300 ­ 3 PRO6000 ­+ 1 2 + 300W 2 ­ 8 -- S R 2 3 0 0 Made in the U. S. A. A Division of Rockford Corp. Tempe, AZ 85281 Audio GND Chassis CH A IN CH A 600W 4­ 16 Mono, 70V, 100V Float 300 W Stereo, 2 ­ 8 600W Mono, 70V, 100V BIAMP STEREO OUT -- + + + 300W 2 ­ 8 Attention: Utiliser un fusible de rechange de même type. CAUTION: For continued protection from risk of fire, replace only with same type and rating of fuse. CH B IN (Mono) CH B OUT For 70V, 100V, or Mono · Use CH B input · Load across RED terminals · Set load switches to one half load impedance -- 250V T7A 100V-120V~ 50-60Hz 250W 100 Volt Transformer 100 Volt Transformer etc. Parallel Array 1. [. . . ]