While the MKI has been very popular and well received by press and professional users, Unity Audio is always looking for ways to improve product performance and the areas they wanted to address were SPL figures and sub-bass extension. This has been achieved by increasing the woofer size from 6.5" to 8" supplied by SEAS, a Scandinavian company specialising in high quality woofers. Additional crossover buffer stages using high quality Burr Brown and Analog Devices components has increased SPL levels by 4dB and low frequencies now extend down to an impressive 30Hz! This upgrade will now have benefits for serious tracking applications, allowing the users to feel the music as well as hear it in amazing detail.