Audison SR 4.300 Amplifier

Audison SR 4.300 4-Channel Amplifier | 520W Total Power | D-Class | Compact Design | ADT Technology | OEM Integration

The Audison SR 4.300 Amplifier is a high-efficiency 4-channel D-Class amplifier delivering 520W total output (4 x 130W @ 2Ω / 85W x 4 @ 4Ω), engineered for audio enthusiasts seeking compact power and flexible system integration. This ultra-compact amplifier embodies the latest advancements in Audison D-Class Technology (ADT), enabling exceptional sound reproduction with minimal space requirements.

Thanks to its extruded aluminum chassis with smooth, rounded corners, the SR 4.300 is designed for easy installation in tight spaces. Dual side-mounted high-efficiency heat sinks provide passive cooling, eliminating the need for internal fans and thereby reducing dust buildup and unwanted noise—perfect for audiophile-grade environments.

The amplifier includes a fully integrated crossover section, making it compatible with a wide range of speaker configurations. For more advanced systems, the filter section can be bypassed when paired with an Audison bit processor. Top-mounted controls, protected by a brushed aluminum panel, allow quick access even after installation.

The SR 4.300 also features multiple connectivity options, including balanced high-level inputs for OEM head units and RCA low-level inputs for aftermarket sources. The integrated USS (Universal Speakers Simulator) ensures seamless connection to factory systems equipped with speaker load detection, maintaining system integrity and avoiding errors. With ART (Automatic Remote Turn-On/Off), the amplifier powers on with the head unit, streamlining the integration process.

Additionally, Remote IN/OUT support enables synchronized control across multiple amplifiers, while the PRE-OUT function via Speaker-IN allows for easy expansion with OEM systems that only offer amplified outputs.

Key Features

• 520W Total Power: 4 x 130W @ 2Ω, powerful and efficient sound delivery
• ADT (Audison D-Class Technology) for compact size and enhanced sonic clarity
• Extruded aluminum body with rounded edges for space-saving installations
• Passive cooling with external heat sinks – no noisy fans
• Integrated full crossover section, with optional bypass via Audison bit processor
• Balanced high-level and RCA low-level inputs for universal compatibility
• USS (Universal Speakers Simulator) for OEM integration with speaker-load detection
• ART (Automatic Remote Turn-On/Off) for hands-free operation with OEM head units
• Remote IN/OUT sockets for controlling multiple amplifiers in series
• PRE-OUT interface allows expansion with amplified OEM sources

Advanced Technologies

• Audison ADT (D-Class Technology): Utilizes a higher switching frequency than standard Class D amps, paired with 4th-order analog low-pass filters to minimize distortion, EMI, and phase shift. Each channel features its own advanced filter design, ensuring superior sonic precision—even under extreme temperature conditions.
• All Channels Driven Design: Guarantees the amplifier delivers full rated power across all channels simultaneously, thanks to a robust power supply architecture.
• Bridgeable Channels: Flexible bridging options for increased output power or configuration versatility.
• USS Technology: Built-in Universal Speaker Simulator ensures flawless pairing with any OEM head unit, even those with speaker-load monitoring functions.