The SP4 is Bryston’s first processor for the immersive audio era. The SP4 decodes all three immersive sound formats (Auro-3D, Dolby Atmos, DTS:X) and includes their respective upmixers. The Bryston SP4 combines Dirac Live calibration with unrivaled bass management capabilities. It even natively supports multi-amped front speakers and multiple subwoofer arrays! The SP4 sounded fantastic in my system.
I’m going to miss the Bryston SP4. It is an exceptional immersive processor. On the audio side, it decodes everything, offers incredible flexibility even for systems with multi-amped speakers and multiple subwoofers, and provides exceptional sonic coherence with the help of Dirac Live. On the video side, HDMI performed better than promised (passed Dolby Vision in my setup), and was as reliable as on mass-market gear. If you’re planning a cutting-edge immersive system and can swing the price, give Bryston’s SP4 your highest consideration.