User manual RANE MA 4

[. . . ] For FAULT FLAG operation (applications and reported faults), see page Manual-3. MADE IN U. S. A. RANE CORP. MA 4 For continued grounding protection do not remove screw ACN 001 345 482 COMMERCIAL AUDIO EQUIPMENT 24TJ 4 + INT EXT 3 + Class 2 Wiring INT EXT INT EXT OUTPUTS 2 + 1 + INT EXT LOAD ­ + ­ LOAD ­ + ­ LOAD ­ + ­ LOAD ­ + ­ FAULT FLAG Active Low 4321 HIGH-PASS 20Hz 40Hz 60Hz 80Hz MASTER COMP SLAVE ON ON ON MODE INPUTS 4 Vr Vc REMOTE LEVEL 3 2 Use Rane VR 2 or 20 k pot Vr Vc Vr Vc 1 Vr Vc 4 SENSITIVITY 3 SENSITIVITY 13 2 SENSITIVITY 13 1 SENSITIVITY 13 +­ +­ 4 +­ 4 +­ 4 13 100-240V 50/60 Hz 500 WATTS C R US + ­ + ­ + ­ + ­ + ­ + ­ + ­ + ­ 4 3 2 1 22 1 2 3 4 1 2 3 4 22 22 22 4 dBu Vr Vc Vr Vc Vr Vc Vr Vc dBu dBu dBu LISTED 1 2 3 4 EXP ON +­ +­ +­ +­ + ­ + ­ + ­ + ­ SOURCE 1 SOURCE 2 SOURCE 3 SOURCE 4 Installation · · · · No rear mounting hardware required. Allow adequate ventilation to keep ambient temperature around the amplifier below 104°F (40°C). Fan cooled with inset intake on left side and inset exhaust on right side (no filter) Amplifier heat load in Btu/hr at 100/240 VAC º 10. 2 / 13. 3 Btu/hr All amplifiers in standby º 112. 3 / 95. 5 Btu/hr All amplifiers on, no signal º 167 / 139 Btu/hr All amplifiers driven, pink noise, 12 watts avg. [. . . ] · Average load impedance is estimated and used to determine the Limiter threshold setting. º The front panel Load indicator (see metering) indicates the load status. º The normal impedance range is 2 to 16 . º Average load impedance is estimated over 180 ms and requires a minimum of 3. 3 watts averaged over 180 ms. · A soft-knee COMPressor is enabled (down) or disabled (up) for all channels using the rear panel dipswitch. º The rms threshold is 10 dB below the Limiter threshold. · Allows full uncompressed operation of typical program material while reducing continuous sine wave power. · Soft knee span is 10 dB; Ratio is 3:1; Attack is 1. 5 seconds; Decay is 3 dB per second. º If the internal amplifier temperature goes above 65° C, the compressor is automatically set to the 10 dB setting until the temperature drops below 55° C. At normal operating temperatures, the threshold setting follows the dipswitch setting. MADE IN U. S. A. RANE CORP. · Downward EXPander reduces noise in the absence of signal. OUTPUTS MA 4 Class 2 Wiring º The expander is enabled ACN 001 345or disabled (up) for all channels using the rear panel dipswitch. (down) 482 INT EXT INT EXT INT EXT INT EXT FAULT 4 3 ms; Gain reduction 10 dB per second. 2 1 º Threshold is ­70 dBFS; Ratio is 3:1; Attack time is 50 FLAG COMMERCIAL For continued · 20, 40, 60 or 80 Hz HIGH-PASS filters are selected using the rear panel dipswitch. C US 100-240V º Filters are 12 dB per octave, Butterworth alignment. ­ + ­ + ­ + ­ + ­ + ­ +­+­ + LISTED R grounding protection do not remove screw AUDIO EQUIPMENT 24TJ LOAD + ­ LOAD + ­ LOAD + ­ LOAD + ­ + ­ + ­ + ­ + ­ 4 Active Low 321 HIGH-PASS 20Hz 40Hz 60Hz 80Hz MASTER COMP SLAVE ON ON ON MODE 4 Vr Vc REMOTE 3 Vr Vc Use Rane VR 2 1 2 3 4 1 2 3 4 50/60 Hz 500 WATTS 4 3 2 1 1 2 3 4 EXP ON Vr Vc Vr Vc Manual- · Individual FAULT FLAG ports are provided for each channel. OUTPUTS MA 4 ACN 001 345 482 Class 2 Wiring º When a fault isRANE CORP. on power up, the channel or channels affected are not enabled, and the appropriate detected INT EXT INT EXT INT EXT INT EXT 4 3 2 1 front panel fault indicators are lit. A detected fault is re-tested every 10 seconds. COMMERCIAL For continued LOAD LOAD LOAD AUDIO grounding º When a channel develops a fault while operating, theEQUIPMENT shuts down and the output relay is turned OFF. channel LOAD protection +­+­ +­+­ +­+­ +­+­ 24TJ do not remove A detected fault is re-tested every 10 seconds. screw º Possible faults include: supply under-voltage, over-voltage, voltage imbalance, output short to ground, output C US 100-240V short to supply, output short to output, clock not running, over+safe temperature. [. . . ] The output of the Slave channel is connected to the EXTernal amplifier input on the Master channel. R FAU FLA 4 Active 32 4 3 2 · Comprehensive front panel metering is included for each channel: º Headroom meters are four-segment. The peak signal level is compared to the limit threshold and the difference in dB is displayed as remaining headroom. The limiter threshold is adjusted to account for the average load impedance, resulting in load compensated headroom indication. º Red Limiter, yellow Compressor and yellow Expander indicators light when the associated dynamics control is active. [. . . ]