DPA48 Compact Amplifier V1.0
User Guide For DPA48 Compact Amplifier
2x20w 4
Ω
/8
Class D Power Amplifier
Page 1: ... DPA48 Compact Amplifier V1 0 User Guide For DPA48 Compact Amplifier 2x20w 4Ω 8Ω Class D Power Amplifier ...
Page 2: ... 4 Features 4 Packing details 5 Start to Use 6 Product View 6 Mount Installation Quick Start 7 Connection Operation 10 Connector Cabling 10 48V Condense Mic 10 Line input Mic 11 Digital Audio Input 11 Phoenix Line in 11 Output connection 12 Control methods 12 RS 232 connection 12 Commands for RS232 12 Specifications 14 More Reference 16 Trouble Shooting 16 ...
Page 3: ...oid plug in power connector with power on otherwise will lead to electric shock or cause damage to the circuit Installation and wiring must be solid and reliable otherwise it may result in malfunction on device Make sure the device has been well connected to the ground before using Do not touch the terminals while power on or may cause electric shock malfunctions Do not disassemble the equipment w...
Page 4: ...table Choose input signal from digital audio dual mono by RCA or 3 5mm stereo audio balanced Mic etc Multi type Mic support Can connect with 48V phantom power condenser microphone dynamic microphone or wireless microphone by switching button Bass Treble and volume level adjustment Corresponding light indicators on different EQ level control Mute function One button to mute the audio out Two types ...
Page 5: ...C24V secured tight connector Convection cooled fanless Design Fanless design makes it quiet stable low heat emission even for 7x24 continuous working Antistatic case Reliable working in complex installing environment Rack mount or under desk mount Compact size at 43 6H x 90W x 150D mm Packing details 1x DPA48 1x power adaptor 1x remote controller 1x User manual Necessary connectors ...
Page 6: ...ch time Product View Front Panel 1 Select from input signals COAXIAL OPTICAL D MONO STEREO PHOENIX 2 Master Volume UP DOWN 3 Mute the audio output 4 Select from LINE MIC BASS MIDDLE TREBLE NOTE Pressing MUTE for 3 seconds to restore to default settings all the EQ will be set to zero NOTE The VOLUME lights lasting for 5 seconds that means it reaches MAX MIN volume NOTE The lights for function selec...
Page 7: ...e please set different one when connecting more than one devices for PC to control 10 Power connector with screw 11 Signals input area can connect to different types of audio source including coaxial digital SPDIF Stereo in RCA balanced stereo with phoenix 3 5mm stereo 12 RS232 control port for PC 13 Output to loudspeakers Mount Installation Quick Start This part is aiming to help you setup the de...
Page 8: ...lease press FUNC SELECTOR button to choose when corresponding EQ lights on BASS MIDDLE TREBLE you can press VOL UP Down button to increase or reduce the EQ parameter The function lights LINE MIC BASS MIDDLE TREBLE will be auto off after 3 seconds if there is no operation during this time 6 Before connecting the Microphone to the device please make sure the type of your Mic You should to press the ...
Page 9: ...de for DPA48 compact amplifier DPA48 Compact Amplifier 9 Mounting The amplifier can be easily mounted in the Rack by one pair of ears to mount beneath the table or fixed at any corner with little space occupied ...
Page 10: ... can choose the most convenient way for their devices to work with it Please note the 3 pin connection for mics is different according to the type of mic 48V Condense Mic Comes with 48V phantom power for condenser microphone with phantom power supply This kind of mic is having high frequency high input impedance and high sensitivity Press to choose 48V ON MIC button switch to connect condenser mic...
Page 11: ...or wireless microphone it has good wide frequency response The cabling is balanced Unbalanced stereo mono depends on how you connect it 1 Balanced stereo Release the 48V button to connect normal dynamic Mic or wireless Mic you will see the green light below is off Can be both balanced or unbalanced connection NOTE Optical input only recognizes decoding PCM encoded signal if using DTS AC3 disc DVD ...
Page 12: ...anced mono Output connection Control methods RS 232 connection Commands for RS232 DPA48 has dual stereo balanced output the loudspeaker connecting can be 2x20w 4Ωor 2x10w 8Ω Use a female 9 pin cable to connect to the corresponding pins on the DPA48 RS232 connector then control it by sending RS232 codes from PC ...
Page 13: ...k Description X 0 Line Volume 1dB X 0 Line Volume 1dB X 1 Mic Volume 1dB X 1 Mic Volume 1dB X 2 Bass Volume 1dB X 2 Bass Volume 1dB X 3 Middle Volume 1dB X 3 Middle Volume 1dB X 4 Treble Volume 1dB X 4 Treble Volume 1dB X 5 Main Volume 1dB X 5 Main Volume 1dB Others Command Feedback Description X MUTE ON MUTE ON Audio Output Mute On X MUTE OFF MUTE OFF Audio Output Mute Off X DEFAULT DEFAULT OK Re...
Page 14: ... SPDIF RCA 3 5mm and balanced stereo input Gain 0dB Frequency response 20Hz 20KHz THD Noise 0 05 1 kHz nominal voltage Signal Noise ratio S N 80dB Stereo separation 80dB 1 kHz CMRR 75dB 20 Hz 20 kHz Signal type Stereo Impedance Input 10 kΩ balanced or unbalanced connection Maximum input level 19 5dBu Gain error 0 1dB 20 Hz 20 kHz NOTE 1 Don t miss the last symbol of each command like 2 It has auto...
Page 15: ...rface 1x Balanced 4 pin phoenix connector Power 2x20W 4Ω or 2x10W 8Ω Control Button on front panel LED indicators Serial control interface 3 pin phoenix interface for RS 232 Baud rate and protocol Baud rate 9600 Data bits 8 Stop bits 1 no parity Serial connection 2 TX 3 RX 5 GND Specification Power supply DC 24V 2 5A Temperature Storage working temperature 10 70 C Humidity Storage working Humidity...
Page 16: ... loose or broken replace the connection cable l Check the front panel signal input indicator showing which input signal is active l Still can t solve by above ways it may in defective situation please contact your dealer to deal with Q Power light is off while connect to power supply no response on operation A Check the power supply is well connected or not Q Interference in output sound A Check t...
