Audison SR 4.500.2 is a compact 4-channel full-range D-Class amplifier delivering 220W x4 @ 2Ω for modern OEM-integration and sound quality applications. Its high-efficiency topology and clean gain structure support DSP-based active front stages, component speaker amplification, or premium OEM amplifier replacement in vehicles with limited space.
Designed for compatibility with Prima, Voce, and Thesis loudspeakers when paired with Audison DSP, the SR 4.500.2 offers stable low-impedance behavior and low noise for multi-channel SQ builds or OEM-plus system upgrades.
Key Performance Features
4-channel full-range D-Class amplifier
220W x4 @ 2Ω for high-efficiency component amplification
Compact chassis ideal for stealth OEM installs
Low floor noise and transparent gain for SQ builds
OEM high-level input with auto turn-on
Stable low-impedance operation for modern vehicles
Power Ratings (CEA-Style)
4Ω: 140W x4
2Ω: 220W x4
Bridged 4Ω: 440W x2
Technical Specifications
Topology: Full-range D-Class
Channels: 4
Signal-to-Noise Ratio: 98 dB (A-weighted)
THD+N: <0.03%
Input Sensitivity: 0.2V – 5V (RCA)
High-Level Input: OEM speaker-level compatible
Auto Turn-On: DC / Audio Sense
Frequency Response: 10 Hz – 30 kHz
Fuse: External block recommended
System Architecture Use Cases
Active 2-way (Tweeter/Mid) front stage
Front + Rear component amplification
OEM premium system amplifier replacement
DSP-driven multi-channel SQ builds
OEM Integration Notes
High-level input for factory head unit compatibility
Auto-turn-on for vehicles lacking dedicated ACC feeds
Compact thermal profile for cabin or trunk mounting
DSP Ecosystem Pairing
DSP: AP bit / AF bit / bit One HD Virtuoso
Speakers: Prima / Voce / Thesis
Role: Multi-channel SQ + OEM integration
Buyer Use Cases
Premium OEM audio overhaul
DSP-based SQ front stage
Space-limited multi-channel builds
Component speaker amplification
What’s Included
(1) SR 4.500.2 Amplifier
Mounting hardware
User documentation
Why Buy From MCOR Automotive
Authorized Audison retailer
OEM integration & SQ specialists
Fast fulfillment with expert support
20+ years of high-end 12-volt system design experience
