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
