15.4 in/390 mm 
15.4 in/390 mm 
SRM450 specifications
The Mackie SRM450 is a powerful and versatile loudspeaker designed for professionals seeking high-quality sound reinforcement. Known for its robust construction and exceptional audio performance, the SRM450 is a staple in various environments, from concerts and events to installations in venues and churches.One of the standout features of the SRM450 is its 1000-watt Class D amplifier, which provides plenty of power to drive the speaker to high output levels without distortion. This amplifier is coupled with a high-performance 12-inch woofer and a 1.4-inch titanium dome compression driver, ensuring that the speaker delivers a broad frequency range with clarity and precision. The result is a balanced sound with deep lows, clear mids, and crisp highs, making it suitable for both music and speech applications.
The SRM450 incorporates Mackie’s proprietary Smart Protect DSP technology. This digital signal processing ensures that the speaker operates safely within its limits, preventing overheating and over-driving, which can damage components. Additionally, the speaker offers adjustable EQ settings and a built-in feedback eliminator, which are invaluable tools for live sound engineers.
Portability is another key characteristic of the Mackie SRM450. Weighing in at just around 38 pounds, this speaker is easy to transport and set up, making it ideal for mobile DJs, bands, and event setups. The durable, all-wood cabinet construction enhances sound quality while also contributing to its resilience on the road.
For connectivity, the SRM450 is equipped with a versatile input panel that includes both XLR and 1/4-inch TRS inputs. This allows for easy integration with various audio sources. The built-in mixer with two channels provides additional flexibility, allowing users to connect microphones, instruments, and playback devices directly to the speaker.
Whether used in a small venue or as part of a larger sound system, the Mackie SRM450 stands out for its quality, performance, and reliability. Its thoughtful design and innovative technology make it an excellent choice for sound professionals who demand the best from their equipment. With a reputation for durability and outstanding sound, the SRM450 continues to be a favorite in the pro audio industry, delivering powerful sound and versatility wherever it's needed.