User manual BIAMP MCA SERIES

[. . . ] 12) Unplug this apparatus during lightning storms or when unused for long periods of time. 13) Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. 14) WARNING - To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. [. . . ] NOTE: When using a pair of channels in 'bridged' mode (see Bridge below), input signal must be connected to the odd numbered channel. Level: These screw-driver adjustable controls determine the level of input signals allowed into the channels. Level provides a gain range from 'off' (min. ) to 'unity' (max. ). The Level control is factory set for -24dB of gain, which will produce maximum output power with input signal peaks of +24dBu. For best performance, first adjust the source signals for optimum (maximum) levels, then adjust the MCA Series Level controls for the desired volume. Signal / Peak Indicators: These 2-color LEDs indicate the signal level for each channel. When an LED is green, that channel has signal (above -30dB). When an LED is red, that channel signal is clipping (max. CAUTION: Signal levels should be adjusted to avoid clipping. Clipping can cause severe distortion, over-temperature conditions, and even loudspeaker damage. NOTE: Signal / Peak indicators will turn off during Temp / Fault condition (see Temp / Fault Indicators on pg. HPF: These DIP switches provide High-Pass Filters for the input channels. High-Pass Filters are used to eliminate unnecessary lower frequencies (12dB/octave @ 125Hz) for speech and distributed speaker applications. From the factory, the High-Pass Filters are bypassed (switches up). To assign a High-Pass Filter on an input channel, move the switch to the down position. CAUTION: To avoid output fault conditions, High-Pass Filters must be assigned on channels driving 25/70/100 Volt speaker systems (see Output below). Also, any other system equalization affecting frequencies below 125 Hz should remain flat or be used as cut-only. Bridge: These DIP switches allow adjacent channels to Bridge together in pairs, for a higher, combined output power (see Bridging on pg. Bridge disables the even numbered input, and applies the odd numbered input signal to both amplifier channels. From the factory, Bridge is bypassed (switches up). To assign Bridge to a pair of channels, move the switch to the down position. Output: These screw terminals provide the speaker outputs from the channels. Connect the positive speaker line to the (+) terminal and the negative speaker line to the (-) terminal of the channel being used. [. . . ] statements, representations or warranties made by any dealer do not constitute warranties by Biamp Systems. Biamp Systems shall not be responsible or liable for any statement, representation or warranty made by any dealer or other person. No action for breach of this warranty may be commenced more than one year after the expiration of this warranty. BIAMP SYSTEMS SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS OR LOSS OF USE ARISING OUT OF THE PURCHASE, SALE, OR USE OF THE PRODUCTS, EVEN IF BIAMP SYSTEMS WAS ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Biamp Systems 9300 S. W. [. . . ]