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 4 

 

 

Environment 

 

Do not place this unit in an enclosed environment such as a bookshelf or closet. Ensure 
that there is adequate ventilation to cool the unit.  

Do not place the unit in environments which contain high levels of dust, heat, moisture or 
vibration. 

Do not use the unit near water or other liquids. Make sure no water or other liquids can be 

spilled, dripped or splashed on the unit. 

This unit was developed for indoor use only. Do not use it outdoors. 

Do not place objects on top of the unit. 

Place the unit on a stable base or mount it in a stable 19” rack. 

Chapter 

Summary of Contents for DPA153

Page 1: ...PROFESSIONAL AUDIO EQUIPMENT DPA73 153 Triple Channel Class D Amplifier User Manual InstallationGuide DPA73 153 AUDAC ...

Page 2: ...A U D A C P R O F E S S I O N A L A U D I O E Q U I P M E N T User Manual Installation Guide AUDAC http www audac eu info audac eu ...

Page 3: ...AR PANEL 6 FRONT PANEL OVERVIEW 6 FRONT PANEL DESCRIPTION 6 REAR PANEL OVERVIEW 7 REAR PANEL DESCRIPTION 7 CONNECTING THE AMPLIFIER 9 INPUT CONNECTIONS 9 OUTPUT CONNECTIONS 11 CONNECTIONS STANDARDS 12 BLOCK DIAGRAM 13 ADDITIONAL INFORMATION 14 TECHNICAL SPECIFICATIONS 14 PERSONAL NOTES 15 Index ...

Page 4: ...on And due to the complete passively cooled entity only a minimal of maintenance is needed while ensuring maximum reliability The small size of a single rack space make them very interesting for fixed rack mount as well as mobile applications The DPA73 and DPA153 are two channel stereo Class D amplifiers with an additional channel for powering a subwoofer cabinet They are capable of delivering a p...

Page 5: ...ironments which contain high levels of dust heat moisture or vibration Do not use the unit near water or other liquids Make sure no water or other liquids can be spilled dripped or splashed on the unit This unit was developed for indoor use only Do not use it outdoors Do not place objects on top of the unit Place the unit on a stable base or mount it in a stable 19 rack Chapter 1 ...

Page 6: ...rated by children Do not stick objects through the openings Do not open the unit risk for electrical shock CAUTION SERVICING This unit contains no user serviceable parts Refer all servicing to qualified service personnel Do not perform any servicing unless you are qualified to do so Note This product conforms to the following European Standards EN 50081 1 1992 EN 50082 1 1992 EN 60065 19 ...

Page 7: ...s By means of this rotary gain control knob the level for the subwoofer channel can be controlled 4 Indicator LED s These LED s indicate the operation of the amplifier There are three LED s provided A signal indicator a Clip indicator and a Protect indicator The green signal indicator LED s will light up when the input channel exceeds 20 dBu The yellow clip LED s will illuminate when the channel s...

Page 8: ...r LPF and are audible through the Subwoofer channel while the signal present on the Left Right output channels can be selected between Full Range and Two Way operation When the switch is in left position the signal for the Satellite outputs is filtered through a High Pass filter HPF and only the tones with a frequency above 120 Hz will be audible through the Satellite channels while when the switc...

Page 9: ...inked through to multiple amplifiers 8 Loudspeaker connections The loudspeaker output connections are performed by means of Euro Terminal Blocks A detailed description about the best method for connecting the loudspeakers for every application can be found in the next chapter connecting the amplifier 9 Operation mode switch By means of this switch the operation mode of the amplifier can be selecte...

Page 10: ...al can be linked through to multiple amplifiers Between the input signal connections of the both channels is an operational mode switch provided By means of this switch the operational mode of the amplifier can be selected There are three different operational modes available 1 Stereo Mode This is the default mode how the amplifier is set in the factory and will be the most common used setting for...

Page 11: ...connector of the amplifier For more information about how the loudspeakers should be connected in bridge mode refer to the Output Connections section of this user manual 3 Parallel Mode In parallel mode Right position of the switch the amplifier is configured in a way that only the signal applied to the XLR input connector of the Left channel will be used and will be amplified by both satellite an...

Page 12: ...ereo Mode Stereo mode will be the most commonly used operation method for this amplifier The Satellite loudspeakers should be connected to the Left Right Euro Terminal block output connectors while the subwoofer should be connected to the Sub Euro Terminal block connector Depending of the position of the Crossover mode switch the signal which is available on the Left Right outputs can be determine...

Page 13: ... is switched in parallel mode the connections for the loudspeakers should be made in the same way as Stereo mode Note Do not connect any 100V line transformers to the loudspeaker outputs of the amplifier The minimum load for the subwoofer channel is 8 Ohm Connection standards The in and output connections of AUDAC audio equipment are performed corresponding to international wiring standards for pr...

Page 14: ...13 Block Diagram Chapter 4 ...

Page 15: ...y Impedance 20 kOhm 4 dBm Frequency response 1 dB 20 Hz 20 kHz Signal to Noise ratio 90 dB Channel separation 70 dB THD at 1 kHz 1 2 rated power Less than 0 1 Operation Temperature Humidity at non condensing 0 40 C at 95 Humidity Indicators Protect DC Thermal Overload Clip 0 dBr Signal 24 dBr Power supply 100 240V AC 50 60 Hz Construction Construction Steel Cooling Convection cooled Mounting 19 Ra...

Page 16: ...15 Personal notes ...

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