Advertisement
Phase
90º
Phase
0º
90º
-90º
10 kHZ
0
10
20
30
40
Fig. 6. On-axis phase response of DPA 4004 and
4007 plotted using a linear frequency axis for evaluation of the
phase response.
6
100 kHz
50
60
70
80
90
100
FULL SPECIFICATIONS:
Cartridge type:
12 mm (0.47 in) pre-polarised condenser
Principle of operation:
Pressure
Power supply:
4004: HMA5000 for 130 V or PCC4000 for P48
4007: 48 V Phantom power
Frequency range, ±2 dB:
4004: On-axis: 10 Hz - 40 kHz
4007: On-axis: 20 Hz - 40 kHz
Phase compatibility:
Max deviation between any two microphones: ±5° (50 Hz to 20 kHz)
Directional characteristics:
Omnidirectional
Sensitivity nominal, ±2 dB:
4004:10 mV/Pa; -40 dB re 1V/Pa
4007: 2.5 mV/Pa; -52 dB re 1V/Pa
Equivalent noise level A-weighted:
Typ. 24 dB(A) re 20 μPa (max. 26 dB(A))
Equivalent noise level ITU-R BS. 468-4
Typ. 36 dB (max. 38 dB)
S/N ratio, re. 1 kHz at 1 Pa (94 dB SPL)
70 dB
Max SPL, peak before clipping:
4004: 168 dB
4007: 155 dB
Total Harmonic Distortion:
<0.5% THD up to142 dB SPL peak, <1% THD up to148 dB SPL
peak
Dynamic Range:
Typ. 124 dB
PREAMPLIFIER:
Frequency range:
4004: 20 Hz to 50 kHz ±0.2 dB 5 Hz to 150 kHz -3 dB
4007: 20 Hz to 40 kHz ±1 dB
Output impedance:
<75 Ohm
7
Advertisement
