M-Audio BX5a Deluxe 70-watt Bi-amplified Studio Reference Monitors Repairs distortion and gaps in audio; Spectral Repair re-synthesis; automatically rebuild clipped sections of audio Standalone application designed for audio restoration; next-generation restoration technology; removes hiss, buzz, clicks Magnetically Shielded Rear-Ported Cabinet Design Bi-Amplified Efficiency Silk-Dome, Waveguide-Loaded, High-Frequency Drivers