DPA152/252 - Audiobizz
Contents
1. 13 TECHNICAE SPECIFICATIONS uu ERE RR annee aa sad ed Fd SU UO AFU lt y OA 13 PERSONAL NOTES PRE EE ER EEE EEE 14 Introduction This section briefly describes the possibilities of the DPA152 252 Class D Power Amplifiers needs of sound contractors They are designed in six different models of Class D power amplifiers divided in three different architectures to meet the requirements for all kinds of applications T he DPA series amplifiers are digital power amplifiers designed to meet the specialized They combine the best of all features in one single series of amplifiers providing an outstanding sound quality with all the known advantages of Class D Amplifiers Such as the excellent efficiency and very low heat dissipation And due to the complete passively cooled entity only a minimal of maintenance 15 needed while ensuring maximum reliability The small size of a single rack space make them interesting for fixed rack mount as well as mobile applications The DPA152 252 is built as a two channel Stereo amplifier with various specific features and advanced protection circuitry which protects against DC malfunctioning short circuit overheating and overload The signal input connections accommodated with balanced XLR connectors and signal link through with other amplifiers is possible using the XLR output connec2. 140 CET 140 3951108 YANN 3140 40131130 Wd TAIT THI u34 dn O 55wlo junivaidmdl dad dL 43130 1 NIAD Ltd Wig jgwllOA M hylon 300 HAT MOS ALU ume WATS qe 1124 1211 DOC MD LANI EH 12 Chapter Additional Information Technical specifications DPA152 DPA252 Performance TT Tig em Input Sensitivity Impedance 20 BU THD at 1 kHz 1 2 rated power Less than 0 1 Operation Temperature Humidity at 40 at 95 Humidity non condensing Indicators Protect DC Thermal Overload Clip 0 dBr Signal 26 dBr Power supply 110 240V AC 50 60 Hz Black Net Weight 4 37 Kg 4 77 Kg 13 Personal notes
3. 152 252 PROFESSIONAL AUDIO EQUIPMENT DPA152 252 Dual Channel Class D Amplifier Lack ial User Manual amp Installation Guide AUDAC PROFESSIONAL AUDIO EQUIPMENT User Manual amp Installation Guide AUDAC http www audac eu info audac eu Index INTRODUCTION Perm 3 ENVIRONMENT ipee AF uses uns 4 SAFETY REQUIREMENTS UU FY Y to bess obsbisvesbob ses DC ENYN HEO Y OFEREDD Fred nd 5 CAUTION SERVICIN E aeii i NG 5 OVERVIEW ERONT AND REAR PANEL eeenseveneenese eet bt thor MAEN ANO in UNO nvr Senee poepoe pSr ice ris E PEE YR ANODD OUR 6 PRONTPANBEOVER VIEN RE 6 PRONT PANEL DESCRIPTION rc eo dial tion ie MN 6 REARPANEL OVERVIEW EEI IIIA EO EPI WEE TED T NN EU 7 REAF PANEL DESCRIPTION nu dc LEE OD 4 CONNECTING THE AMPEIFEIER nn ERREUR WC nn EDS ne ini SEMINE MEYER Ea SERIE 8 INPUT CONNEC TION ERU em 8 OUTPUT CONNECTIONS T M T 10 CONNECTIONS SESNDA RDS em 11 BLOC KR DIR GRAIN eom 12 ADDIFIONAL INEORMA DION
4. 3 Indicator LED s Description 1 Power switch By means of the power switch the amplifier can be turned ON and OFF When the amplifier 15 switched on the blue LED located above the power button will illuminate 2 Gain control knobs These rotary gain control knobs allow you to adjust the level for each individual channel 3 Indicator LED s These LED s indicate the operation of the amplifier There are three LEDs provided 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 output is being overdriven and the two red protect indicators illuminate when the thermal compression begins or any fault is detected 6 Input connections 4 AC powet inlet with fuse P 5 Loudspeaker connections 7 Operation mode switch Rear panel overview Description 4 Power inlet The mains power supply 110 240V AC 50 60 Hz has to be applied to this AC power inlet The connection is made by an IEC power connector and is fitted with a fuse When replacing the fuse make sure that the value of the replacement fuse matches the value of the original fuse T4AL 250V for DPA 152 amp T6H 250V for DPA252 5 Loudspeaker connections The loudspeaker connections are performed in
5. conductors to the and terminals of the corresponding output channel Channel 2 Channel 1 _ ___ u r 2 Bridge mono Mode When the amplifier is switched in bridge mode there will be one single load connected to the amplifier outputs This load should be connected between the terminal of Channel 1 and the terminal of Channel 2 This can be done by connecting the loudspeaker between the 1 and 2 terminals of Speakon connector one Or when using the Euro Terminal connection blocks the loudspeaker should be connected between the terminal of Channel 1 and the terminal of Channel 2 Bridge mode 3 Parallel Mode When the amplifier 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 Connection standards The in and output connections of AUDAC audio equipment are performed corresponding to international wiring standards for professional audio equipment XLR 1 ground shield 2 sig sig XLR female XLR male Block Diagram z dd zgd HOG 4 dans a HIS ADtrZJY AODLJV HIM Nod SOM ae 17111054 JJ NIHZ LIAS uDL SOR
6. two different ways Every channel has Speakon and euro terminal block output connections In this way the connections can be always made on the most simple way for every application detailed description about the best method for connecting the loudspeakers for every application can be found in the next chapter connecting the amplifier 6 Input connections The input connections of the amplifier are performed using balanced XLR connectors Every channel has an XLR input connector and a XLR link output connector The input signal from the signal source pre amplifier or mixer should be connected to the XLR input connections And by means of the XLR link output connectors the signal can be linked through to multiple amplifiers 7 Operation mode switch By means of this switch the operation mode of the amplifier can be selected between standard stereo mode parallel mode and bridge mode For standard stereo applications this switch should be turned to center position for Stereo mode Chapter Connecting the Amplifier Input connections The input connections of the amplifier are performed using balanced XLR connectors Every channel has an XLR input connector and a XLR link output connector The input signal from the signal source pre amplifier or mixer should be connected to the XLR input connections And by means of the XLR link output connectors the signal can be linked through to multiple amplifiers Between the
7. be individually controlled by means of the rotary controls on front of the amplifier Output connections The loudspeaker connections are performed in two different ways Every channel has Speakon and euro terminal block output connections In this way the connections can be always made on most simple way for every application 8 amp The used Speakon connectors are 4 pole versions At the contacts of Speakon 1 are the output signals available for both output channels Contacts 1 and 1 contain the signal for output Channel 1 while contacts 2 and 2 the signal contain for output Channel 2 The contacts of Speakon 2 only contain the signals of Channel 2 which are available on contacts 1 and 1 1 Stereo Mode Stereo mode will be the most commonly operation method for this amplifier The loudspeakers of each channel can be connected with a separate two core connection cable or one four core connection cable carrying both signals for Channel 1 and Channel 2 when connecting by Speakon connectors Depending of the most suitable solution the loudspeakers can be connected by both Speakon and Euro Terminal Block connectors When connecting the loudspeakers by Speakon connectors the conductors should be connected to terminals 1 and 1 of the connector and when connecting the loudspeakers by means of the Euro Terminal Blocks just connect the
8. 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 most applications Center position of the switch Connect both outputs from the stereo signal source to the Channel 1 and Channel 2 XLR input connectors of the amplifier 2 3 Bridge Mode In bridged mono mode the power of both output channels is merged to deliver double the power to one single 8 Ohm load The mode selection switch should be positioned in the Bridge position Left position of the switch The output of the signal source should only be connected with the Channel 1 XLR input 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 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 Channel 1 will be used and will be amplified by both output channels The output level of both channels can
9. tors The operation mode can be selected between Stereo mode Bridge mode and Parallel mode The output connections are accommodated with both Speakon and Euro Terminal blocks Chapter 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 mount it in a stable 19 rack Safety Requirements Always handle the unit with care Only use a grounded socket outlet and a power cord with grounding plug to plug in the unit This unit is not a toy It should not be operated 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 setviceable 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 Chapter Overview front and rear panel Front panel overview 2 Gain controls
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