PA DM550

550W Modular Amplifier – 48Vdc secondary Emergency power supply

Modular Professional Power Unit 250W – 70/100V. This new series of audio power amplifiers was designed to fulfil an evolving market in the most flexible and professional manner. The new range responds to precise operating criteria and was designed and tested to guarantee total reliability of use, also with continuous operation. Thanks to the use of power supply switching with SMPS (switch mode power supply) technology and to the constant voltage output 70/100V obtained electronically without transformers, it was possible to design the amplifier in only one rack unit, succeeding in containing the weight and size. La serie DM Power è stata concepita per essere installata in cestello rack 19” 3U in grado di accogliere n° 8 moduli affiancati.

FEATURES

Modular Professional Power Unit 550W 70/100V
Speaker short-circuit and overload protection circuit
Multi-Level Protection and Self Fault Recovery
Energy Saving Circuit
On Board DSP
LED indicators
Master Level control
Low and high tone adjustment
PA-HF Filter with rear switch
VOX threshold adjustment
MIC/Line input gain adjustment
Balanced Line Input on Euroblock terminal
Priority Mic/Line Balanced Input on RJ45 socket
Two selectable outputs at Constant voltage (70/100V) on Euroblock terminal
48Vdc emergency power supply
Maximum 8 modules in a rack case MDA8C (3U rack 19”)

Technical specifications

Model series “DM.POWER”	DM550
Constant voltage speaker output	100V – 70V selectable
Max Output power RMS @100V	550W
Minimum Load Impedance	18.2 Ohm
Frequency response	50Hz ÷ 20KHz ±3db 440Hz ÷ 20KHz ±3db (selectable)
S/N Ratio	> 110 dbA (20Hz ÷ 20KHz)
Distortion (THD+N)	< 0,05 dbu (1W ÷ Max Power)
Input Impedance	10KΩ
Input Sensitivity (mV)	100÷1000 (Priority Input) – 550 (Line Input)
Maximum Input Voltage (V)	5.50 Vp-p / +8.0 dBu
DSP audio processing	24bit 48Khz, Volume control, Mic Gain control, Soft-VOX, Tone controls
AC POWER SUPPLY
Input Voltage (V~)	230VAc (+10% / -15%)
Input Frequency (Hz)	50 / 60 ± 10%
Max Average Input Current	1.9A (pink noise, max load)
DC POWER SUPPLY
Input Voltage (Vdc) 48V.DC nominal.	42,0 ÷ 55,0 Vdc
No-Signal current consumption	50mA
Max Average Input Current	13.0A (pink noise, max load)
INPUT/OUTPUT CONNECTORS
Primary power supply (V~ )	IEC panel connector
Auxiliary power supply (V.-/+ dc)	Polarized panel connector
Speaker Output	Terminal block (Euroblock)
Signal Input	Terminal block (Euroblock)
MIC Input	Polarized panel connector/ RJ45
Std-By	Terminal block (Euroblock)
CONTROLS & INDICATORS
Indicators	ON/Std-By, Signal/Clip/Limit, Protect/Temp
Controls	Master Volume, HF, LF, 440Hz Cut, Mic Gain, Vox Gain, Std-By
PROTECTION
Speaker overload protection	Current limiter
Speaker short-circuit protection	Output Disconnection
Thermal management	Fan Speed, output signal attenuation, output disconnection
DC power protection	Fuse, polarity inversion
Mains power protection	Fuse
Mains power Spike protection	480 Joules, 2ms
Clipping protection	DSP based amplitude limiter
GENERAL DATA
Audible Noise (dB@1mt)	< 40
Operating temperature (°C)	-5 ÷ 40
Relative humidity (%)	< 95 (non-condensing)
Dimensions (LxHxP) (mm)	116 x 53 x 367
Weight (kg)	2,15

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PA DM550

550W Modular Amplifier – 48Vdc secondary Emergency power supply

FEATURES

Modular Professional Power Unit 550W 70/100V
Speaker short-circuit and overload protection circuit
Multi-Level Protection and Self Fault Recovery
Energy Saving Circuit
On Board DSP
LED indicators
Master Level control
Low and high tone adjustment
PA-HF Filter with rear switch
VOX threshold adjustment
MIC/Line input gain adjustment
Balanced Line Input on Euroblock terminal
Priority Mic/Line Balanced Input on RJ45 socket
Two selectable outputs at Constant voltage (70/100V) on Euroblock terminal
48Vdc emergency power supply
Maximum 8 modules in a rack case MDA8C (3U rack 19”)

Model series “DM.POWER”	DM550
Constant voltage speaker output	100V – 70V selectable
Max Output power RMS @100V	550W
Minimum Load Impedance	18.2 Ohm
Frequency response	50Hz ÷ 20KHz ±3db 440Hz ÷ 20KHz ±3db (selectable)
S/N Ratio	> 110 dbA (20Hz ÷ 20KHz)
Distortion (THD+N)	< 0,05 dbu (1W ÷ Max Power)
Input Impedance	10KΩ
Input Sensitivity (mV)	100÷1000 (Priority Input) – 550 (Line Input)
Maximum Input Voltage (V)	5.50 Vp-p / +8.0 dBu
DSP audio processing	24bit 48Khz, Volume control, Mic Gain control, Soft-VOX, Tone controls
AC POWER SUPPLY
Input Voltage (V~)	230VAc (+10% / -15%)
Input Frequency (Hz)	50 / 60 ± 10%
Max Average Input Current	1.9A (pink noise, max load)
DC POWER SUPPLY
Input Voltage (Vdc) 48V.DC nominal.	42,0 ÷ 55,0 Vdc
No-Signal current consumption	50mA
Max Average Input Current	13.0A (pink noise, max load)
INPUT/OUTPUT CONNECTORS
Primary power supply (V~ )	IEC panel connector
Auxiliary power supply (V.-/+ dc)	Polarized panel connector
Speaker Output	Terminal block (Euroblock)
Signal Input	Terminal block (Euroblock)
MIC Input	Polarized panel connector/ RJ45
Std-By	Terminal block (Euroblock)
CONTROLS & INDICATORS
Indicators	ON/Std-By, Signal/Clip/Limit, Protect/Temp
Controls	Master Volume, HF, LF, 440Hz Cut, Mic Gain, Vox Gain, Std-By
PROTECTION
Speaker overload protection	Current limiter
Speaker short-circuit protection	Output Disconnection
Thermal management	Fan Speed, output signal attenuation, output disconnection
DC power protection	Fuse, polarity inversion
Mains power protection	Fuse
Mains power Spike protection	480 Joules, 2ms
Clipping protection	DSP based amplitude limiter
GENERAL DATA
Audible Noise (dB@1mt)	< 40
Operating temperature (°C)	-5 ÷ 40
Relative humidity (%)	< 95 (non-condensing)
Dimensions (LxHxP) (mm)	116 x 53 x 367
Weight (kg)	2,15

PA DM550

550W Modular Amplifier – 48Vdc secondary Emergency power supply

Technical specifications

DOWNLOAD

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