DAP SI-4.900 Amplifier

DAP SI-4.900 4-channel digital amplifier

The DAP SI-4.900 is the most powerful 1U high 4-channel digital amplifier in the System Integration series, designed for demanding permanent sound systems. This model delivers a solid 4 x 900 W RMS power into a 4-ohm load, while maintaining an extremely compact housing and low weight. This is professional audio equipment for those who need high power reserves without taking up much space in the equipment rack.

Thanks to advanced Class D technology and a switched-mode power supply (SMPS), this amplifier efficiently powers loudspeakers and ensures stable operation even under heavy loads. The SI-4.900 offers flexible connectivity options: it is equipped with both professional XLR and Speakon sockets, as well as Euroblock (Phoenix) terminals, which are standard in permanent installations. Integrated protection systems guard against overheating, overload, and short circuits.

Key features

• High power in a 1U enclosure: 4 x 900 W power while occupying minimal rack space.
• 4 independent channels: allows configuring four separate audio zones or a powerful multi-channel system.
• Installation-friendly connectors: convenient Phoenix (Euroblock) terminals for quick and safe mounting.
• Maximum efficiency: Class D technology ensures low energy consumption and minimal heat dissipation.
• Bridge mode: possibility to combine channels for 2 x 1800 W @ 8 Ohm power.

Technical specifications

• Manufacturer: DAP
• Model: SI-4.900
• Product code: D4245
• Output power (4 Ohm): 4 x 900 W RMS
• Output power (8 Ohm): 4 x 600 W RMS
• Output power (Bridge 8 Ohm): 2 x 1800 W RMS
• Amplifier class: Class D
• Frequency response: 20 Hz - 20 kHz
• Signal-to-noise ratio (S/N Ratio): > 90 dB
• Distortion (THD): < 0.1 %
• Inputs: 4 x XLR, 4 x Euroblock terminal
• Outputs: 4 x Speakon, 4 x Euroblock terminal
• Dimensions: 483 x 285 x 44 mm (19", 1U)
• Weight: 5.9 kg

Included in the box

• 1 x DAP SI-4.900 amplifier
• 1 x Phoenix (Euroblock) connector kit
• 1 x Power cable
• 1 x User manual

Intended for?

• Large restaurants, nightclubs, and entertainment centers requiring high-power zoned sound systems.
• Conference centers and sports halls where professional loudspeaker systems are installed.
• Fixed installations where the power-to-space ratio is valued.

Can't find the DAP product you're looking for? Contact us: info@stageiq.lt or +370 636 55536.