digmoda DDC520, Руководство пользователя

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DDC550
Audio Specifications
Parameter Conditions Min Typ Max Unit
THD+N in 4Ω
(AES17 filter)
f = 40Hz, Po = 1W - 0.009 0.011
%
f = 500Hz, Po = 1W - 0.025 0.031
THD+N in 8Ω
(AES17 filter)
f = 40Hz, Po = 1W - 0.007 0.009
f = 500Hz, Po = 1W - 0.016 0.020
Max THD+N in 4Ω
(AES17 filter) -10dBFS
f = 40Hz - 0.006 0.008
%
f = 500Hz - 0.008 0.010
Max THD+N in 8Ω
(AES17 filter) -10dBFS
f = 40Hz - 0.006 0.008
f = 500Hz - 0.008 0.010
THD+N Low Level in 4Ω
f = 40Hz, 100mW 0.02
%
f = 500Hz, 100mW 0.04
THD+N Low Level in 8Ω
f = 40Hz, 100mW 0.02
f = 500Hz, 100mW 0.04
Nominal Voltage Gain (Av)
f = 40Hz 29.92
dBV
f = 500Hz 29.97
Frequency Response
(Po = 1W)
20Hz - 100Hz -
+/-
0.5
+/-
1
dB
100Hz - 20KHz -
+/-
0.5
+/-
1
Common Mode Rejection (CMR) 20Hz - 20KHz -55 dB
Signal to Noise Ratio in 4Ω
(SNR)
0dB = 1% THD, 40Hz -135
dB
0dB = 1% THD, 500Hz -125
Signal to Noise Ratio in 8Ω
(SNR)
0dB = 1% THD, 40Hz -136
0dB = 1% THD, 500Hz -125
Input Impedance (Z
in
)
Unbalanced 18K
Ω
Balanced 36K
Input Sensitivity in 4Ω
(Balanced) (V
in
)
f = 40Hz, 500W 1.43
Vrms
f = 500Hz, 500W 1.42
Input Sensitivity in 8Ω
(Balanced) (V
in
)
f = 40Hz, 250W 1.42
f = 500Hz, 250W 1.40
DC Output Offset in 4Ω (DC
off
)
Low channel 3.0
mVrms
High channel 3.3
DC Output Offset in 8Ω (DC
off
)
Low channel 9.5
High channel 4.0
Input Clipping (Vin
clip
) f = 1KHz 12 dBu
Damping Factor (D
f
)
(On three amplifiers)
f = 100Hz, R
L
= 8Ω 2000
Power Specifications
Parameter Conditions Min Typ Max Unit
Max output power
1% THD+N (P
o
) (AES17 filter)
R
L
= 4Ω, 40Hz - 500 -
W
R
L
= 4Ω, 500Hz - 500 -
Max output power
1% THD+N (P
o
) (AES17 filter)
R
L
= 8Ω, 40Hz - 250 -
R
L
= 8Ω, 500Hz - 250 -
Power Draw at Idle (P
idle
)
(115VAC/60Hz)
Idle (115VAC/60Hz) - 18 - W
-Input Connector: XLR female -Power Switch: Neutrik, PowerCon
-Thruput Connector: XLR Male -Output Circuitry: Class-D amps with analog feedback
-Power Indicator: Green LED -Speaker output connector: MOLEX 03-09-2062 (On the back)
-Fault Indicator: Red LED -DSP Control: USB
II. DDC550 Specifications