DIGITAL SYSTEM AMPLIFIER

DSA 8805

Amplifier at rated conditions, all channels driven, rated loads, unless otherwise specified.

Load Impedance

 

Low Impedance Mode

 

High Impedance Mode

2 Ω1

 

4 Ω2

 

8 Ω2

 

70 V / 10 Ω3

100 V / 20 Ω4

 

 

 

 

Maximum Midband Output Power

500 W5

 

500 W

 

250 W

 

500 W

500 W

THD = 1%, 1 kHz, 4 channels driven

 

 

VLD: 500 W

 

 

 

 

 

 

 

 

Rated Output Power

450 W

 

450 W

 

225 W

 

450 W

450 W

THD < 0.3%, 20 Hz6...20 kHz, 8 ch. driven

 

 

VLD: 450 W

 

 

 

 

 

 

 

 

Maximum Bridged Output Power

-

 

1000 W1

 

1000 W

 

1000 W7

1000 W8

THD= 1%, 1 kHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum RMS Voltage Swing

32 V

 

45 V

 

45 V

 

70 V

100 V

THD = 1%, 1 kHz

 

 

VLD: 63 V

 

 

 

 

 

 

 

 

Power Bandwidth

 

 

10 Hz...25 kHz

 

50 Hz...25 kHz

THD = 1%, ref. 1 kHz, half power @ rated load

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Voltage Gain, ref. 1 kHz

32 dB

 

32 dB

 

32 dB

 

33 dB

36 dB

Input Sensitivity, rated power, 1 kHz

0.775 V

 

1.1 V

 

1.1 V

 

1.55 V

1.55 V

 

(+0.0 dBu)

 

(+3.0 dBu)

 

(+3.0 dBu)

 

(+6.0 dBu)

(+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 Hz6...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 V9, 50-60 Hz

Power Consumption, 1/8 maximum output power

 

 

 

 

930 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 42110

 

 

Weight

 

 

 

13.9 kg (28.7 lbs)

 

 

Optional:

 

 

 

D113223 (RMK-15)

 

 

Rear-rackmount

 

 

 

 

 

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

Owner‘s Manual / Bedienungsanleitung 35

Page 35
Image 35
Dynacord DSA 8405, DSA 8410, DSA 8805 owner manual 500 W