BST AD600 - Class-D digital power amplifier 2×450 W/4 Ω and 2×300 W/8 Ω (900 W bridge)

BST AD600 - Class-D digital power amplifier 2×450 W/4 Ω and 2×300 W/8 Ω (900 W bridge)

The BST AD600 amplifier is a professional 1U 19″ rackmount unit delivering 2 × 300 W RMS into 8 Ω, 2 × 450 W RMS into 4 Ω and 900 W RMS bridged into 8 Ω. Featuring a Class D topology with progressive air cooling and switching power supply, it combines high efficiency, very low weight (< 3 kg) and a small footprint for space-sensitive installations. It features multiple protections—overheating, high-frequency burst, short-circuit, DC current and soft-start—and a built-in limiter to ensure reliable operation on the road, in fixed installations or in studio applications.

Main features

• Operating modes: Stereo (2 ×) or bridged (1 ×) via rear selector
• RMS power: 2 × 300 W at 8 Ω / 2 × 450 W at 4 Ω / 1 × 900 W bridge@8 Ω
• Topology: Class D digital amplification with switching power supply
• Input: Balanced XLR and 6.3 mm jack connectors
• Outputs: Turnlock for speakers and terminal blocks
• Integrated protections: Thermal, VHF, short circuit, DC, soft-start and internal limiter
• Cooling: Fans with progressive temperature control
• Compact format: 1 U 19″ rack, reduced depth (approx. 170 mm) and light weight (< 3 kg)

Product benefits

• Energy efficiency: Class D and switching power supply reduce consumption and heat dissipation.
• Professional reliability: Protection and limiter circuits prevent damage to heavy loads.
• Configuration versatility: Switch between stereo and bridged depending on power needs.
• Easy integration: XLR/jack inputs and Turnlock/terminal outputs allow quick connection to any system.
• Optimized mounting: 1 U and shallow depth facilitate installation in road cases and compact racks.

Use cases

• Passive speaker reinforcement for concerts and mobile tours.
• Fixed installations in auditoriums, churches and convention centers.
• Recording and broadcast studios that require high power and low distortion.
• Corporate event rooms and professional sound rentals.

Frequently Asked Questions

• What is the difference between stereo and bridge modes?
  In stereo mode, it delivers independent power to each channel; in bridge mode, it combines two channels to double the power at one output.
• Is additional ventilation necessary?
  Its progressive air system is effective, but it is recommended to leave one unit free in the rack for air flow.
• How do I activate the limiter?
  The limiter is permanently activated and does not require configuration.
• What connections does it support?
  Balanced XLR and jack inputs, turnlock outputs or screw terminals for speakers.

Description for projects

4-channel Class D bridgeable digital amplifier 2×2, 2×300 W@8 Ω, 2×450 W@4 Ω, 900 W@8 Ω bridge, XLR/jack in, Turnlock/terminal out, thermal/VHF/short-circuit/DC/soft-start protections, limiter, progressive cooling, 1 U rack, low weight.