DSA 8405 4 x 500 w multichannel power amplifier for fixed install applications by Dynacord

DSA 8405

4 x 500 w multichannel power amplifier for fixed install applications

  • 4 x 500 W into LZ and HZ (70 V / 100 V)
  • Variable Load Drive (VLD)
  • Optimized for 24/7
  • High efficient Class D design
  • Remote Control with optional Control Module (RCM-810)

Innovative Dynacord technology, exemplary flexibility, very high output with an extremely good efficiency and integration into IRIS‑Net networks.

Each channel can be switched individually to provide 500 W at either 2 Ohms, 4 Ohms or to drive 70 Vrms or 100 Vrms loudspeaker lines directly without an output transformer. In combination with the RCM‑810 module the user can configure these amplifiers under IRIS‑Net using the Variable Load Drive (VLD) to provide any output power in the range of 100 W to 500 W per channel (1 W increments) at any load in the range of 2 Ohms ‑ 10 Ohms (0,1 Ohms increments).

The audio quality fullfills all requirements of demanding ProSound applications.

The Phoenix input connectors are electronically balanced. Phoenix connectors are also provided for the power outputs.

The POWER REMOTE connector makes the task of remote controlling the power amplifier as well as switching it on and off simple. For further remote‑supervision and –control possibilities and integration into IRIS‑Net networks, an optional remote control module (RCM‑810) is available.

Specifications

Low impedance mode High impedance mode
2 Ω 4 Ω 8 Ω 70 V/10 Ω 100 V/20 Ω
Maximum midband output power, THD = 1%, 1 kHz, 4 channels driven 500 W 500 W 250 W VLD: 500 W 500 W 500 W
Rated output power, THD < 0.3%, 20-20 000 Hz, 4 channels driven 450 W 450 W 225 W VLD: 450 W 450 W 450 W
Maximum bridged output power, THD = 1%, 1 kHz - 1000 W 1000 W 1000 W/20 Ω 1000 W/40 Ω
Alarm power rating (according to EN 54-16) - 325 W 250 W VLD: 325 W 325 W 325 W
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 at rated load 10-25000 Hz 50-25000 Hz
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 +22 dBu (9.76 Vrms)
Crosstalk, ref. 1 kHz, at rated output power < -80 dB
Frequency response, ref. 1 kHz, 8 Ω load 15-30000 Hz (±1 dB)
Input impedance, active balanced 20 kΩ
Damping factor, 1 kHz, 8 Ω > 240
Slew rate 28 V/μs
Signal-to-noise ratio (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 220-240 V, 50-60 Hz or 120 V, 50-60 Hz or 100 V, 50-60 Hz
In-rush current 27 A
In-rush current, after five-second power cycle 14 A
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/Undervoltage Protection
Cooling Front-to-Rear, temperature controlled fans
Electromagnetical environment E1, E2, E3
Operating temperature +5° to +40° C
Safety class I
Product dimensions (Width x Height x Depth) 483 x 88.1 x 420.8 mm
Net weight 11.1 kg
* Depending on the ambient temperature, the unit might not operate continuously at 2 Ω load in Dual Mode or 4 Ω load in Bridged Mode. In addition input power exceeds 1.1 times rated power consumption with at 2 Ω load in Dual Mode or 4 Ω load in Bridged Mode.

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