The Onkyo TX-RZ30 AV receiver delivers ultra-wide bandwidth and is packed with the latest technology for the home theater of your dreams.Ultra-Wide Bandwidth Via Custom High-Current CircuitryThanks to custom low-noise power transformers and smoothing capacitors, the TX-RZ30 hits rumbling lows (5 Hz) and stunning highs (100 kHz) for an expansive audio experience our competitors just can't match.Perfectly Calibrated To Your Space With Dirac LiveDirac Live is an essential part of building an impressive home entertainment system. With a Dirac Live Room Correction Full Bandwidth license included right out of the box - and optional Bass Control upgrade available - you will experience user-friendly, perfectly calibrated audio from the get-go.Dirac Live Room Correction Full Bandwidth is capable of calibrating the full frequency range (20 Hz to 20 kHz) of music and movie sound. With optional Bass Control, subwoofer output is calibrated with all your other speakers to provide additional bass refinement and fine details, while enhancing mid and high frequencies that were previously inaudible.IMAX Enhanced For Vibrant, Lifelike ExperienceIMAX Enhanced is a vital part of the premium home theater experience, delivering object-based audio for precisely placed sound and movement in 3D space.Meanwhile their exceptional video quality comes from a proprietary algorithm that optimizes color accuracy, contrast, and detail fo