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Dynacord Professional Power Amplifiers User Manual

Page 69

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DPA 4411

dPa 4000 s

eries

69

General

DPA 4245

DPA 4260

Load Impedance

28.5 Ω / 100V

20 Ω / 100V

14 Ω / 70 V

9.8 Ω / 70 V

1.8 Ω / 25 V

1.25 Ω / 25 V

4 Ω / 37.4 V

4 Ω / 44.7 V

Rated Output Power

350 W (acc. to IEC 268-3 / 19.4)

500 W (acc. to IEC 268-3 / 19.4)

Maximum Output Power

450 W into 4 Ω

600 W into 4 Ω

Output Power in Bridged-Operation

700 W (acc. to IEC 268-3)

1000 W (acc. to IEC 268-3)

Power Output Characteristics:

balanced, floating

Input Characteristics:

electronically balanced

Input Sensitivity

775 mV / 0 dBu

Input Impedance

20 kΩ

Distortion @ 1kHz and Nom. Outp. Power

≤ 0.1 %

Frequency Response

45 Hz .. 22 kHz (-3 dB)

Signal to Noise Ratio

> 100 dB

Output Stage Topology

Class-AB, Transformer, Floating

Power Requirements Mains

230 V AC / 50 - 60 Hz

Mains Power Consumption

1714 VA at nominal output

2268 VA at nominal output

635 VA driven at -10 dB

842 VA driven at -10 dB

78 VA no signal

131 VA no signal

Protection

audio limiter, thermal overload, DC, HF, Back-EMF, peak current limiter, initial

current inrush limiter, power-on delay,

saturation limitation for output transformers

Cooling

Front-to-Rear, temperature controlled

Ambient Temperature Limits

+5° C ... +40° C (40° F... 105° F)

Safety Class

I

Dimensions (WxHxD), mm

483 x 132.5 x 384 mm, 19” / 3 HU

Installation Depth without Connectors

377 mm

Installation Depth including Connectors

max. 437 mm

Weight

20.5 kg

22.5 kg

Color

anthracite

Optional

Extension-kits for the DPA 4245 / DPA 4260:

NRS 90208 Input transformer (for one input)