APART MA120 Instruction Manual Download Page 18 | Manualshive

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APART MA120 Instruction Manual Download Page 18

18

Mixing amplifiers

6. Turn the chime potmeter about halfway, push the “test”

button to hear the chime and adjust the chime volume as
desired using the chime potmeter.

Note: the paging mic and chime levels are independent from the
position of the big volume control on the front of the unit.
The paging contacts must be potential free, i.e. no voltages should
be present on these connectors.

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Summary of Contents for MA120

Page 1: ...MA120 MA240 Instruction manual ...

Page 2: ......

Page 3: ...Instruction manual MA120 MA240 ...

Page 4: ...4 Mixing amplifiers ...

Page 5: ...Instruction manual MA120 MA240 ...

Page 6: ...ign company succeeded in redefining the look of the mixing amplifier as we know it today The new and revolutionary Apart MA120 240 mixing amplifier offers the end user an unseen cutting edge design and ease of use The groundbreaking front panel is clear and easy to use without any unnecessary bells and whistles The refreshing rear panel will give every installer an instant gratification due to the...

Page 7: ...end user Universal switching mode power supply Auto standby mode can be switched off with 0 5W standby 24 volt DC 500 mA priority output Dedicated emergency input with vox and mute all switch Paging mic input with contact closure 2 front panel operated mics mic A with switchable vox 4 line inputs on RCA Signal clip indicators and gain control on all inputs for fast and easy configuration of the in...

Page 8: ...h the volume control If the clip led lights up when the emergency signal is present lower the level of the emergency signal at the source to avoid distortion Activating the emergency input will also activate the priority output 11 2 Paging mic input connect your paging mic here the input accepts microphone level signals on balanced euroblock line level signals on balanced euroblock or RCA Set the ...

Page 9: ...d hi eq controls MIC A input is compatible with the local input panel that requires phantom voltage 4 MIC B input connect a microphone here the euroblock accepts a balanced microphone signal and RCA The led beneath the switch will be lit when phantom power is present Adjust the gain potmeter so that the clip led does not light up when the signal is at its highest level The MIC B volume can be set ...

Page 10: ... the paging mic input Typically 24 volt priority is used to override volume controllers present on speaker lines 12 Speaker out speaker output connector on euroblock Use the 4 ohm or the 70 volt or the 100 volt output Never use more than one output at the same time 13 Pre outs the preamp output carries the same line level signal that is being fed to the power amplifier and is taken after the front...

Page 11: ...tilation holes should never be blocked Therefore it is absolutely necessary to allow at least one free rack space or 44 mm above the amplifier Make sure the ambient temperature is between 0 and 40 C Operating the unit beyond its normal limits may cause overheating If necessary use a forced ventilation system in your mounting rack when the rack holds multiple amplifiers The mains fuse is located in...

Page 12: ...he output volume of MIC A B 3 MIC A B on off switch use this button to turn MIC A B on and off 4 Name field here you can attach the name stickers and the name fields supplied with the unit 5 Input 1 4 selection buttons by pressing these buttons you can toggle between inputs 1 to 4 or switch off the selected input by pressing the button that is lit You can only select one input at a time 6 Volume c...

Page 13: ... output level Avoid hitting the red zone Standby The auto standby function can be enabled disabled via a switch 10 at the rear of the unit The power standby control led will slowly fade in out to indicate that standby is activated Basically there are 2 standby modes manual standby activated by pushing the power button on the front auto standby activated by the auto standby circuitry The unit will ...

Page 14: ...Activating the previously selected sound source i e signal present on the previously selected input Pushing any front panel button Activating the paging contact Activating the emergency input by the emergency vox or the emergency switch Cycling the power using the rear power switch or a mains power interruption Note when the audio cable at the selected input is long and noisy the unit will not go ...

Page 15: ... Practical example Connecting the speakers Example 100 volt speaker line Connect the speaker line wires as shown Note never use more than one output at a time Do not overload the speaker output In 70 and 100 volt speaker lines the power of all speakers in the chain must be added The total power MUST be lower than or equal to the amplifier s output power For example on a 240 watt 100 volt amplifier...

Page 16: ...aging microphone 1 Connect the microphone wire as shown in the picture The GND is used for the balanced signal of the microphone The paging contact closure is indicated in the picture mic signal paging contact 2 Set the mic line button to MIC 3 Close the paging contact ...

Page 17: ...control slowly clockwise until the clip led lights up at the highest peaks Now turn the control back a little Open the volume control until the paging message sounds as loud as desired Watch the output VU meter on the front of the unit and make sure meter never hits the red zone 5 Open the paging contact ...

Page 18: ...the chime and adjust the chime volume as desired using the chime potmeter Note the paging mic and chime levels are independent from the position of the big volume control on the front of the unit The paging contacts must be potential free i e no voltages should be present on these connectors ...

Page 19: ... tuner CD player to input 1 1 Connect the output of the line source to the cinch connectors of input 2 While the line source is playing turn the gain control on input 1 slowly clockwise until the clip led lights up at the highest signal peaks Now turn the control back a little ...

Page 20: ...ms for hidden defects can be considered only if the defects appear within the warranty period of 24 months and are notified within 8 days following their appearance per registered letter The warranty is not valid in case of an incident wear for moving parts power surges inadequate packing or shipping improper use or storage and the disregard of recommendations of Apart Audio The warranty only conc...

Page 21: ... gain max 12 dBV 250 mVrms THD N 6dB pre out 0 4 Frequency response 3dB bal mic 165 Hz 20 kHz unbal bal line 20 Hz 20 kHz Gain 15 to 15 dB Length chime 2 s Input impedance 2 kohms Mic A Mic B Nominal input sensitivity bal mic gain max 50 dBV 3 mVrms Nominal input sensitivity bal line gain max 12 dBV 250 mVrms Nominal input sensitivity unbal line gain max 12 dBV 250 mVrms THD N 6dB pre out 0 2 Freq...

Page 22: ...rrent overvoltage undervoltage PRE out REC out Nominal output level 0 dBV 1 Vrms 0 dBV 1 Vrms Power supply Max power consumption 160 W 320 W Idle power consumption 12 5 W 15 W Standby power consumption 0 5 W 0 5 W Power supply 100 V 240 VAC 10 50 60 Hz Standby Input trigger sensitivity to wake up Line 1 4 43 dBV 7 mVrms 10 Mic A Mic B RCA 50 dBV 3 mVrms 10 Mic A Mic B Balanced mic vox off 74 dBV 0...

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Page 24: ...part Audio nv Industriepark Brechtsebaan 8 bus 1 2900 Schoten Belgium Company names product names and trademarks are property of their respective owners Apart Audio specifications are subject to change without notice ...

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