Citronic D300 2 x 150W Class-D Power Amplifier 4-8 Ohms

Efficient Class-D 2 x 150W Stereo Power Amplifier With Switchable Modes, Built-In Limiter & Low-Cut Filter In A Compact 1U Rack Format – Citronic D300.

The Citronic D300 is a lightweight and efficient 2 x 150W Class-D stereo power amplifier housed in a compact 1U rack-mountable enclosure, designed for driving medium to large speaker cabinets across a wide range of sound reinforcement applications. Class-D circuit architecture efficiently converts power into impactful audio output while keeping heat generation and power consumption low, and custom cool guide technology ensures consistent and reliable operation even at sustained high output levels. A built-in limiter circuit engages automatically at peak output to prevent speaker overload, providing an important layer of protection for connected cabinets during demanding use.

Switchable stereo, parallel mono and bridge mono modes provide flexible configuration options to suit different system requirements — with bridge mode delivering 300W into 8 Ohms for high-power mono applications such as subwoofer amplification. Three switchable input sensitivity settings (0.775V, 1.0V and 1.44V) ensure compatibility with a wide range of source equipment, and a switchable 75Hz low-cut filter helps manage low-frequency content for cleaner, more focused output. XLR female inputs with XLR male thru outputs allow straightforward signal routing and daisy-chaining within the rig, and L+R SPK connectors provide versatile speaker output connectivity.

Class-D Efficiency & Cool Guide Technology

The Class-D circuit architecture of the D300 efficiently converts mains power into audio output, minimising wasted energy as heat and allowing the amplifier to operate reliably even at sustained high output levels without the thermal management challenges associated with traditional Class-AB designs. Citronic's custom cool guide technology further supports consistent and reliable operation over extended periods, making the D300 well suited to installation and touring environments where the amplifier may be driven hard for long durations.

Flexible Modes & Built-In Protection

Switchable stereo, parallel mono and bridge mono modes allow the D300 to be configured to suit a wide range of system architectures and requirements. In bridge mode it delivers 300W into 8 Ohms, making it a useful high-power mono option for subwoofer driving or mono PA configurations. The built-in limiter circuit provides an important safeguard, engaging automatically at peak output to prevent speaker overload and protect connected cabinets from damage during demanding performances.

Switchable Sensitivity, Low-Cut Filter & Versatile Connectivity

Three switchable input sensitivity settings — 0.775V, 1.0V and 1.44V — ensure broad compatibility with a wide range of professional mixers and source equipment, and a switchable 75Hz low-cut filter helps clean up low-frequency content for tighter, more focused sound reinforcement. XLR female inputs with XLR male thru outputs allow the signal to be passed to additional amplifiers or equipment within the rig, and L+R SPK connectors provide straightforward speaker connectivity across all operating modes.

KEY FEATURES: Citronic D300 Power Amplifier

• Class-D Power Amplifier: Efficient Class-D architecture delivers 2 x 150W RMS at 4 Ohms with minimal heat generation for reliable sustained operation.
• Custom Cool Guide Technology: Ensures consistent and reliable thermal management even at high output levels over extended periods.
• Built-In Limiter: Automatically engages at peak output to prevent speaker overload and protect connected cabinets.
• Stereo, Parallel & Bridge Modes: Flexible configuration options including 300W bridged mono at 8 Ohms for high-power single-channel applications.
• Switchable Input Sensitivity: Three settings — 0.775V, 1.0V and 1.44V — for broad compatibility with professional source equipment.
• Switchable 75Hz Low-Cut Filter: Reduces unwanted low-frequency content for tighter, more focused sound reinforcement output.
• XLR Inputs With Thru Outputs: L+R XLR female inputs and L+R XLR male thru outputs for straightforward signal routing and daisy-chaining.
• SPK Speaker Outputs: L+R SPK connectors for versatile speaker cabinet connectivity across all operating modes.
• Compact 1U Rack Format: Lightweight at just 3.5kg and occupying only 1U of rack space for efficient installation in any standard rack.
  

Download the user manual here