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DIGITAL SYSTEM AMPLIFIER
Owner‘s Manual / Bedienungsanleitung 33
Specifications/Technische Daten
DSA 8405
Amplifier at rated conditions, all channels driven, rated loads, unless otherwise specified.
1 Output Mode 2 Ω (500 W at 2 Ω, 250 W at 4 Ω, 125 W at 8 Ω)
2 Output Mode 4
Ω (500 W at 4 Ω, 250 W at 8 Ω)
3 Output Mode 70 V
4 Output Mode 100 V
5 Depending on the ambient temperature, the unit might reduce the output power at 2
Ω load
6 50 Hz High Pass is automatically activated in 70 V / 100 V output mode
7 140 V at 20
Ω
8 200 V at 40 Ω
9 Due to the mains voltage situation in Japan the values for the maximum output power can be decreased by 15%
10 Depth of the unit without rack ears (detachable): 380 mm
Load Impedance
Low Impedance Mode High Impedance Mode
2 Ω
1
4 Ω
2
8 Ω
2
70 V / 10 Ω
3
100 V / 20 Ω
4
Maximum Midband Output Power
THD = 1%, 1 kHz, 4 channels driven
500 W
5
500 W
250 W
VLD: 500 W
500 W 500 W
Rated Output Power
THD < 0.3%, 20 Hz
6
...20 kHz, 4 ch. driven
450 W 450 W
225 W
VLD: 450 W
450 W 450 W
Maximum Bridged Output Power
THD= 1%, 1 kHz
-
1000 W
1
1000 W
1000 W
7
1000 W
8
Maximum RMS Voltage Swing
THD = 1%, 1 kHz
32 V 45 V
45 V
VLD: 63 V
70 V 100 V
Power Bandwidth
THD = 1%, ref. 1 kHz, half power @ rated load
10 Hz...25 kHz 50 Hz...25 kHz
Voltage Gain, ref. 1 kHz 32 dB 32 dB 32 dB 33 dB 36 dB
Input Sensitivity, rated power, 1 kHz 0.775 V
(+0.0 dBu)
1.1 V
(+3.0 dBu)
1.1 V
(+3.0 dBu)
1.55 V
(+6.0 dBu)
1.55 V
(+6.0 dBu)
THD at rated output power, MBW = 80 kHz, 1 kHz < 0.05%
IMD-SMPTE, 60 Hz, 7 kHz < 0.05%
DIM30, 3.15 kHz, 15 kHz < 0.02%
Maximum Input Level +22dBu (9.76V
rms
)
Crosstalk, ref. 1 kHz, at rated output power < -80 dB
Frequency Response, ref. 1 kHz, 8 Ω load
15 Hz
6
...30 kHz (±1 dB)
Input Impedance, active balanced 20 kΩ
Damping Factor, 1 kHz, 8 Ω > 240
Slew Rate 28 V/μs
Signal to Noise Ratio Amplifier, A-weighted 98 dB 100 dB 100 dB 104 dB 106 dB
Output Noise, A-weighted < -66 dBu < -65 dBu < -65 dBu < -65 dBu < -64 dBu
Output Stage Topology Class D
Power Requirements (factory configured)
220-240 V, 50-60 Hz or 120 V, 50-60 Hz or 100 V
9
, 50-60 Hz
Power Consumption, 1/8 maximum output power 490 W
Protection Audio Limiters, High Temperature, DC, HF, Short Circuit, Peak Current Limiters, Inrush
Current Limiters, Turn-on Delay, Mains Circuit Breaker Protection, Mains Over/Under-
voltage Protection
Cooling Front-to-Rear, temperature controlled fans
Ambient Temperatur Limits +5 °C...+40 °C (40 °F...105 °F)
Safety Class I
Dimensions (W x H x D), mm
481 x 88.0 x 421
10
Weight 11.1 kg (24.3 lbs)
Optional:
Rear-rackmount D113223 (RMK-15)