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MANUAL VERSION 1.2

 

 

Summary of Contents for APX1500

Page 1: ...APX1500 QUICKSTART GUIDE ENGLISH ...

Page 2: ...ll faders and gain knobs are set to zero 6 Connect all sound sources outputs to amplifier inputs as indicated in the diagram 7 Connect the amplifier outputs to speakers 8 Plug all devices into an appropriate power source 9 Switch everything on in the following order Sound sources i e microphones turntables CD players etc Mixer Amplifier Speakers 10 When turning powering down turn everything off in...

Page 3: ...signal will be output from the CH 2 output connector Parallel Mono Mode In this mode CH 1 input signal will be output from the output connectors of both channels Bridged Mode In this mode CH 1 input signal will be output from the bridge mono output connector 5 CHANNEL OUTPUTS Connect your speakers input jacks to these outputs For the binding posts red is the positive signal and black is the negati...

Page 4: ...ue to operate normally During short circuit protection the Clip and Protect LEDs will light simultaneously and all output from that channel will stop Short Circuit Protection can often be traced back to the signal output line i e the speaker line Check the line from the output terminal of the amplifier to the speaker If this line is still good check the internal speaker connections and components ...

Page 5: ...d the channel 2 input signal will be output from the channel 2 output connectors STEREO PUSH PUSH OPERATION IN PARALLEL MODE In this mode the channel 1 input signal will be output from the output connectors of both channels The channel 2 input jack is not used the channel 1 and 2 volumes can be adjusted independently Use the Parallel Mode when you want to drive two speakers with only one input sig...

Page 6: ...r speaker before operation BRIDGED PUSH PUSH RACKMOUNTING TIPS It is a good idea to mount this in the bottom of a rack frame Supporting the back of the unit may be necessary for portable or road use The APX1500 mounts into a standard 19u rackmount ALTO amplifiers are well shielded however mounting low level electronics some distance away from power amplifiers is common practice to reduce the possi...

Page 7: ...0 3 dB VOLTAGE GAIN 32 dB DISTORTION SMPTE 1M 0 5 S N ratio 110 dB Inrush Current at initial switch on 8 24A Inrush Current after power supply interruption 9 30A GENERAL SPECIFICATIONS PROTECTIONS ON OFF muting DC fault load grounding relay Internal fault fuses CONTROLS Front AC switch CONTROLS Rear Low pass filter mode selector SIGNAL INDICATORS 2 green LED CLIP 2 red LED POWER INDICATORS 1 Blue ...

Page 8: ...www altoprofessional com MANUAL VERSION 1 2 ...

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