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Q What new features are coming to AV receivers in 2016? I guess my question is more about what features might be missing from 2015 models, which already have Wi-Fi, Bluetooth aptX, Airplay, High-res FLAC and DSD support, 4K pass-through, Dolby Atmos and DTS:X processing. I am interested in the latest Marantz receivers, specifically the NR-1506 and SR-5010, but noticed that those models were announced back in June 2015. Should I wait for new 2016 models? —Jason York

A Most of the new receivers released in 2015 are completely up to date on the video connectivity front, with HDMI jacks that support 4K/60p signals, HDCP 2.2 copy protection, High Dynamic Range, and Rec.2020 color.

On the audio front, one feature missing from the Marantz NR1506 receiver you list is DTS:X readiness. While that model can’t be upgraded for DTS:X, a firmware update Marantz has scheduled for this month for its step-up SR5010, SR6010, and SR7010 allows those receivers to be upgraded for up to 11.2 playback, depending on the model.

At this point, I’d consider most of the receivers currently on the market to be fully loaded—you shouldn’t have to wait for 2016 models to come out before taking a plunge. One “new” feature that you may be interested in is Auro-3D, a $199 upgrade option that Marantz plans to make available sometime in 2016 for its flagship SR7010. Auro-3D is another “immersive” surround technology that uses height and overhead speakers to wrap listeners in a full cocoon of sound. The format has been used for a number of theatrical releases and is currently featured on several Blu-rays. I haven’t experienced a demo myself, but show reports in Sound & Vision and elsewhere give Auro-3D a definite thumbs-up.