Q I own a Pioneer Elite VSX-49TXi receiver that I’m using in a bedroom system because it lacks HDMI connections. My plan is to upgrade the Onkyo receiver in my theater room with a Marantz pre-pro plus a power amp. Here’s my question: Could I use the Pioneer receiver purely as a power amp connected to the Marantz pre-pro? —Rick Jennings, Hollister, CA
Q I’m shopping for an outdoor speaker to use on my back patio and was leaning toward Sonos. Here are my questions: Can I stream audio to Sonos speakers via Bluetooth from my iPhone? Also, are Sonos speakers able to both play tracks from my computer’s iTunes library and stream them from Apple Music? —Jim Flynn
Is there an amp or integrated amp with Apple’s AirPlay 2 that I can use to power my passive JBL towers while simultaneously streaming music to multiple Apple HomePod speakers? —Marc Rocard
Q Is it possible to install a Dolby Atmos 5.1.2 or 5.1.4 configuration using only in-ceiling speakers with directional tweeters? —Felix Diezel, via email
Q I have been reading A/V magazines for years, as well as conducting my own research, and am still a little confused about how to select the right amplifier to use with MartinLogan electrostatic speakers. The literature I’ve read clearly indicates that the ohm rating of a receiver is just as important, or more so, than its wattage per channel when considering an A/V receiver to pair with speakers. Does the ohm rating of MartinLogan electrostatic speakers make them incompatible with typical AVRs?
Q Help! Perhaps it's the case that I don't understand the Dolby Atmos specifications, but I get the impression that if I build an Atmos system with four height channels, I will also need to purchase an expensive receiver.
I want the unit I buy to handle both two-channel analog music and big-budget films with multichannel soundtracks. Is there such thing as a receiver that can process Dolby Atmos soundtracks for a 5.1.4-channel speaker layout but also let me use a high-end stereo amp to power the front channels? —Joshua Gonzalez, Houston, TX
Q I’ve got a smallish 10 x 12-foot viewing room. The room’s size isn’t necessarily a problem, but the seating is a modular couch set all the way against the back wall. Can I get any value out of in-wall surrounds right behind or beside the seating? —Robert Greenwalt, via email
Q I read your response to a reader who asked about using dipolar speakers as surrounds in an Atmos system. You recommended “losing any side-mounted dipole surround speakers in the system and replacing them with properly positioned direct-radiating models.” Does that same advice hold for bipolar surrounds? —Darryl Brooks, via email