SD-2350 SD-2500 SD-2650 SD-2800 Digital Karaoke Power Amplifier

SD-2350 SD-2500 SD-2650 SD-2800 Digital Karaoke Power Amplifier

SD-2350/SD-2500/SD-2650/SD-2800
2 Channel Class-D Digital Power Amplifier
Description

This Series power amplifier is a new milestone in amplifier development. Advanced Class D PCB module and SMPS power supply module are used to obtain high efficiency and stability . It has very high power density, which makes the amplifier to reach powerful output in a very small shell space.

 

Features

 

1. Both 2 channel and 4 channel models are available.

2. PFC built - in to get universal operating voltage 90-265VAC for the amplifier . No worry about unstable power voltage in operation.

3. Compact structure in only 1U height and light weight , easy to move and install.

4. Fixed switch frequency Class D РСВ module.

5. Soft resonant Switching power supply LLC module.

6. High efficiency loud speaker EMF absorption system.

7. Unique peak clipping limiter and ripple Elimination.

8. LOW electricity consumption.

9. Nice cooling system with quality fans to make wind flow front to the rear.

10. Accurate volume control, switch on/of, signal, clip and protection LED light in front panel.

11. Multiple automatic protection against direct current, over heat, over load, on/of switching, RF, and amplitude limit.

12. XLR balance input and professional SPEAKON output connectors.

13.Stereo, bridge and mono mode selection.

14.Good for applications that need strong power output.

 

Specification

 

Model

SD-2350

SD-2500

SD-2650

SD-2800

Channel number

2 channel

2 channel

2 channel

2 channel

8Ω stereo output

2X350W

2X500W

2X650W

2x800W

4Ω stereo output

2X580W

2X800W

2X1050W

2x1300W

2Ω stereo output

2X1100W

2X1100W

2X1250W

2x1500W

8Ω bridge power

1160W

1600W

2100W

2600W

4Ω bridge power

1600W

2200W

2800W

3300W

Circuit Category

Class D

Class D

Class D

Class D

Voltage Gain

40.8/38.6/32

40.8/38.6/32

41.2/39/32

42.7/40.5/32

Total Harmonic Distortion

≤0.035% (@ 8Ω,1kHz,1/8 rated power)

Intermodulation Distortion IMD

≤0.15% (@ 8Ω,1kHz,1/8 rated power)

SNR

>106dB A

Crosstalk

>40dB

Frequency Range

10Hz to 20k Hz,+/-1dB

Input Resistance

Balanced 20K/ Unbalanced 10K

Damping Coefficient

≥600

Conversion Rate

≥20v/uS

Input Sensitivity

0.775V,0dB

Protection Functions

Amplitude limit, and protections againts short circuit, over-load, overheat, direct current, radio-interference, on/off switching and muting.

Control Knobs

Power On/Off switch, VOLUME control in front panel, Stereo/Bridge/Mono switch on back panel.

LED indicators

CLIP/-10dB/SINGAL/MONO/BRIDGE/STATUS indicators in front panel

Power Delay

4 seconds

Input Interface

XLR input socket

Output Interface

SPEAKON connector

Dimension(W*H*D)mm

483*44*230

Net Weight

5.0kg

5.5kg

5.8kg

6.2kg

 

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