The M-900u is designed to achieve the best sound expression from your speaker system. 4 parallel push-pull structural output units are connected for a sound quality that is rich in high tones and deep bass sound. Luxman's original ODNF circuit has been developed over time, now in version 4.0 it creates a lifelike sound with ultra-low distortion. The BLT connection allows the user to use the device as an ultra-fast power monitor amplifier of 600W (8Ω).