Unity Audio Boulder MKIII Monitor

The sealed Baltic birch cabinet eliminates the phase issues and 'chuffing' often associated with bass reflex ports. This results in a tighter, more accurate low-end response and superior time-domain performance, which is essential for critical mixing decisions.

By placing the 50kHz folded ribbon tweeter within the 5-inch mid-range driver, the X-Jet design ensures that high and mid frequencies originate from the same point in space. This improves off-axis response and creates a more coherent, precise stereo image.

While the Boulder MKIII is a powerful 3-way system capable of high SPLs, its sealed design provides a controlled bass response that is generally easier to manage in smaller rooms than ported monitors of similar size. However, ensure you have enough physical space, as each unit weighs 28.8 kg and stands over 24 inches tall.

Unity Audio uses high-power Class D amplification for the woofers to provide the speed and current needed for deep, punchy bass. The mid-range and tweeter are powered by discrete Class A/B amplifiers, which are preferred for their smooth, natural harmonic reproduction in the critical high-frequency spectrum.

Yes, the Boulder MKIII is designed to be expandable. It can be integrated into a 4-way system if you decide to add dedicated sub-bass reinforcement or additional frequency management in the future.

Corian is an incredibly dense, non-resonant material that provides a rock-solid foundation for the drivers. This minimizes cabinet vibration and coloration, ensuring that the sound you hear is coming directly from the drivers rather than the enclosure itself.