Ask S&V

Q I have over 9,000 songs on a hard drive hooked to my computer. When I listen, I stream it over my home network to a Samsung TV connected to a Denon receiver. The audio is fine but the visual effect of browsing through folders on a 70-inch screen leaves much to be desired. Is there an inexpensive way to browse and play your stored digital music library in a home theater using a visual interface like Microsoft Groove Music? —Jay Sklaroff, via email

Q My new Denon A/V receiver has an eARC (enhanced Audio Return Channel) HDMI connection, and my TV has a regular HDMI ARC connection. Here’s my question: Will the Denon A/V receiver be able to decode both Dolby Atmos/Dolby True HD and DTS:X/DTS-HD Master Audio soundtracks that are routed to it from the TV’s HDMI ARC port, or do I need to connect sources such as an Ultra HD Blu-ray player and streaming box directly to the AVR to make that happen? —Andrew Last, via email

Q I have a Vizio TV, model number D48f-E0. The company’s specs say that it’s a “Full Array LED display.” It also has a “Backlight Control” in its picture settings menu that automatically dims or brightens the backlight during viewing. Is this feature the same thing as local dimming? I’m confused here — if backlight control and local dimming are separate features, what’s the difference between them? —James Paxton, via email

Q My house has a well-lit living room where I watch TV. Are OLED sets bright enough to use in that space, or should I buy an LCD TV instead? —Paul G.

Q I have a modest home theater in my basement that I have been slowly upgrading over the last two decades. The only component I haven’t upgraded yet is my Polk Audio subwoofer since it was a pretty decent model when I purchased it 20 years ago. Would I benefit from upgrading to a new 12-inch sub? —Cal Rempel, via email

Q I own a Sony UBP-X800 Ultra HD Blu-ray player and want to know if all the 4K discs I buy provide high dynamic range (HDR). I’m also wondering if all 4K discs with HDR deliver it in both the HDR10 and Dolby Vision formats. —Steven Ganno, via email

Q I just bought Polk Audio Monitor 40 Series II speakers and want to know how to install them using bi-wiring. Do I connect two separate wires from the positive and negative outputs on the receiver and run them to the separate positive and negative input sets on the speaker? What benefits will that provide? —Kris Green, via email