TOA DA-550F 4-Channel Digital Power Amplifier

The TOA DA-550F is a four-channel digital power amplifier designed for high-performance audio distribution in large venues such as stadiums, sports facilities, and shopping centers. Operating on 220-240V AC, it provides rated outputs of 4x550W at 4 ohms or 4x350W at 8 ohms. Procure.ae supplies this unit across the UAE with quotation-based pricing.

This Class D amplifier delivers precise audio power with a frequency response spanning 20 Hz to 20 kHz and an efficiency of 85%. It features comprehensive per-channel circuitry protection, forced-air cooling, and selectable bridge operation for 2x1100W output. The unit includes monitoring outputs for power status and removable dust filters to maintain performance in demanding environments.

Mounted in a standard EIA 2U rack space measuring 482 x 88.4 x 404.2 mm, it weighs 9 kg with an aluminum and steel black finish. It operates between -10°C and +40°C, featuring blue power and green input indicators alongside yellow output and red peak/protect lights. Procure.ae provides this equipment for installation in UAE commercial and public spaces.

Type

Digital Power Amplifier

Weight

9 kg

Key features

Power Output Specs

Delivers 4x550W at 4 ohms or 4x350W at 8 ohms with selectable bridge mode for 2x1100W output.

Digital Class D Design

Utilizes efficient Class D technology achieving 85% efficiency while maintaining a frequency response from 20 Hz to 20 kHz.

Rack Mounting Form

Fits into standard EIA 2U rack spaces with dimensions of 482 x 88.4 x 404.2 mm and a weight of 9 kg.

Status Monitoring

Includes power ON/OFF status output and per-channel control alongside multi-color LED indicators for input, output, and protection.

Thermal Protection

Features forced-air cooling and comprehensive circuitry per channel to ensure reliability in continuous operation environments.

Specifications

General
Model	DA-550F
Type	Digital Power Amplifier

Audio
Channels	4
Frequency Response	20 Hz - 20 kHz
Power Output	4 x 550 W (4 Ω) / 4 x 350 W (8 Ω)

Power
Power Consumption	480 W (EN standards)
Power Source	220 - 240 V AC, 50 / 60 Hz

Physical
Dimensions	482 x 88.4 x 404.2 mm (W x H x D)
Finish	Aluminium, Steel plate, black
Mounting	EIA Standard equipment rack, 19" cabinet
Operating Temperature	-10°C to +40°C
Rack Units	2 U
Weight	9 kg

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This sheet is compiled from the product data held on procure.ae. For fully accurate and up-to-date figures, always refer to the manufacturer’s own specification sheet or datasheet for this model.

Specifications are provided by the manufacturer and may change without notice.

Pricing is quote-based. Contact Procure for current pricing and availability.

Delivery across the UAE and beyond, installation on request and manufacturer-backed warranty.