Adastra CA30 User Manual
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953.103UK, 953.104UK User ManualA 100V line speaker system can comprise of many speakers connected together. The determining factor forhow many speakers can be used on a single amplifier is the power rating. For most purposes, it is advised toconnect as many speakers as needed with a combined wattage of no more than 90% of the amplifier’s outputpower rating.The terminals of a 100V speaker are connected to a transformer and in some cases, this transformer may be“tapped” for different power ratings. These tappings can be used to adjust the wattage (and output volume)of each speaker in the system to help achieve the ideal total power of the system for the amplifier.Low impedance systemsFor use with a single 8Ω speaker, connect the “8Ω” output (14) to the positive (+) speaker connection and“COM” output (13) to the negative (-) speaker connection. It is important to ensure that the speaker load isno less than 8Ω and that the power handling of the speaker is equal to or greater than the output power ofthe amplifier.OperationWhen all connections to the amplifier are made, switch on the power, then turn the MASTER rotary control uppart way for testing.If a line input is connected to the AUX IN connectors, make sure that the source signal is playing andgradually turn up the AUX IN level control (7) until the playback is heard. Turn up the MASTER level until themaximum required level is achieved and turn down the AUX level to control the volume.For any microphones that are plugged in, speak into each microphone in turn whilst turning up the relevantMIC level control until it is heard through the speakers. Increase the MIC level control until the requiredvolume is achieved.The output of the amplifier is represented on the level meter LEDs (9) and care should be taken that the Red“0” LED is only lit momentarily during use. Anything longer than a short flash of this LED may be indicatingdistortion or clipping of the output signal and the MASTER level should be turned down to avoid this.Turn the MASTER level fully down before switching power off to avoid damage to speakersSpecificationsModel CA30 CA60Power supply 230Vac, 50Hz (IEC)Output power: RMS 30Wrms 60WrmsOutputs : Speaker 100V / 8 Ohm / COMOutput: Line RCA signal outputInputs 2 x mic 6.3mm jack + aux (2 x RCA) 3 x mic 6.3mm jack + aux (2 x RCA)Volume controls Mic 1, Mic 2, Aux, Master Mic 1, Mic 2, Mic 3, Aux, MasterInput impedance: Mic 1.8kΩTHD <1.0% nominalDimensions 255 x 220 x 84mm 285 x 220 x 84mmWeight 3.37kg 4.35kgDisposal: The “Crossed Wheelie Bin” symbol on the product means that the product is classed as Electrical orElectronic equipment and should not be disposed with other household or commercial waste at the end of its useful life.The goods must be disposed of according to your local council guidelines.Errors and omissions excepted.Copyright© 2015. AVSL Group Ltd. |
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