Dynacord Power Amplifier DPA 4245 Owner's Manual page 27

Technical Specifications: DPA 4245, DPA 4260
Amplifier at rated conditions, both channels driven, direct outputs with 8W loads, isolated outputs with rated load and voltage,
unless otherwise specified.
DUAL MODE
Output Definition
Load impedance or rated output voltage
Rated Load Impedance
isolated outputs only
Maximum Midband Output Power
THD=1%, 1kHz
Maximum Midband Output Voltage
THD=1%, 1kHz, RMS, rated load
Rated Output Power
THD <0.2%, 45Hz ... 20kHz,
>10min. according IEC 268-3
Rated Output Voltage
THD<0.2%, 45Hz ... 20kHz
Maximum RMS Voltage Swing
THD=1%, 1kHz, no load connected
Frequency Response, -3dB, ref.1kHz
LO-Cut-Filter: 18dB/octave, 45Hz
HI-Cut-Filter: 12dB/octave, 30kHz
Voltage Gain
at 1 kHz
Input Sensitivity and Impedance
at rated condition
Slew Rate
Power Bandwith
THD=1%, ref. 1kHz, half power @ rated
load impedance
THD at rated output power,
MBW=80kHz, 1 kHzI
MD-SMPTE
60 Hz, 7 kHz
DIM30
3.15 kHz, 15 kHz
Crosstalk
ref. 1kHz, at rated output power
Input Impedance
20Hz ... 20 kHz, balanced
Damping Factor
at 100Hz / 1kHz, direct outputs only
Insertion Loss
isolated outputs only
Signal to Noise Ratio
Rated output voltage to noise, A-weighted
DPA4245
Direct Output Isolated Outputs
8Ω 4Ω 100V
28.5Ω
240W 450W 410W
44V 42.4V 108V
230W 350W 350W
42.9V 37.4V 100V
44V 125 V
45 Hz .... 30kHz 45 Hz.... 22kHz
34 dB 34 dB 42 dB
25 V/µs
45Hz ...50kHz
< 0.05% < 0.1% < 0.2% < 0.3%
< 0.08% < 0.1% < 0.3% < 0.5%
< 0.03% < 0.2% < 0.2% < 0.2%
> 300 / > 200
0.7 dB
27
Direct Output
70V 25V 8Ω
14Ω 1.8Ω
400W 390W 330W
74.8V 26.5V 51.3V
350W 350W 300W
70V 25V 49V
87V 31V 52V
45 Hz .... 30kHz
39 dB 30 dB 35 dB
0dBu ( 775mV) / 20 kOhm
45Hz .... 25kHz 45Hz .... 50kHz 45Hz .... 25 kHz
< 0.05 %
< 0.08%
< 0.03 %
< -80dB
20 kOhm
0.8 dB 0.9 dB
> 100 dB
DPA4260
Isolated Outputs
4Ω 100V 70V
20Ω 9.8Ω
600W 590W 580W 570W
49V 109.5V 75.4V 26.7V
500W 500W 500W 500W
44.7V 100V 70V
121V 88V
45 Hz .... 22kHz
35 dB 42 dB 39 dB 30 dB
30 V/µs
< 0.1% < 0.2% <0.3%
< 0.1% <0.3% <0.5%
< 0.2% <0.3 % <0.3%
> 300 / > 200
0.7 dB 0.8 dB 1.1 dB
25V
1.25Ω
25V
32V