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Q I recently purchased a Bose SoundTouch 130 soundbar and have a Samsung BDP7500 Blu-ray player connected to it. Here’s my question: There’s a setting in the Samsung player’s menu for speaker size and distance. Since I’m using a soundbar that gets calibrated using a headset in five positions, is it necessary to also adjust the Blu-ray player’s speaker size/distance settings, or should I just leave those alone? I called Bose tech support, and they had no answer for me. —Peter Palagonia/Las Vegas, NV

Got a tech question for Sound & Vision? Email us at AskSandV@gmail.com

Q I’ve ripped most of my CD collection to my computer using iTunes. At this point, I’d like to maybe get a portable media storage unit and transfer my iTunes library to it so I can play music through my AV receiver and Amazon Echo speakers. Is that a good idea? All suggestions are appreciated, but I am looking for an inexpensive solution. —John McGlynn / Boca Raton, FL

A There are a few ways to skin this cat. Here are some suggestions that won’t cost much money.

Q I recently learned that my television’s 120 Hz feature is global—when I turn it on, it remains on for all sources. I'm not a fan of this because I don't like seeing the “Soap Opera Effect” on TV and movie sources, though I do like it when playing videogames because the higher frame rate gives them a silky-smooth look. Here’s my question: Do you know of any TVs with a 120 Hz feature that can be turned on or off for specific inputs? —Ricky Meadows / via email

Got a tech question for Sound & Vision? Email us at AskSandV@gmail.com

Q I recently purchased a pair of Definitive Technology BP 8060 ST tower speakers with built-in subs. They are connected to my Sony STR-DH750 receiver. What would be the correct speaker setting if I used the 8060s as my front speakers (set to Large) and continued to use my Sony sub for LFE instead of the ones built into the Def Tech towers? The rest of my system consists of two Infinity rear surrounds and a center speaker, plus two Bose speakers mounted on the front wall that I use for height speakers. —Kevin Bolin / Houston, TX

Got a tech question for Sound & Vision? Email us at AskSandV@gmail.com

Q My current setup includes an “older” 7.1-channel receiver that isn’t equipped to decode new sound formats such as Dolby Atmos. I understand that when you play an Atmos disc, older receivers are presented with a standard 5.1- or 7.1-channel version of the soundtrack for decoding. What difference, if any, is there between this default version and something like a Dolby True HD mix? My assumption is that it would be better to select a dedicated lossless mix over a backward-compatible, and presumably compressed, fallback mix. — Jason Acosta

How Important Is a Receiver’s Power Output in 7-Channel Mode? Got a tech question for Sound & Vision? Email us at AskSandV@gmail.com

Q I love Sound & Vision’s reviews for the objective bench tests, though the results often don’t seem to sync up with the reviewer’s opinions. I’m looking to replace my damaged but terrific sounding Pioneer A/V receiver with a Yamaha RX-V773. The RX-V773 and its siblings get stellar reviews, but they exhibit a huge power drop-off when driving five or seven channels compared with their two-channel measurements. Pioneer’s VSX-52 receiver delivers around three times the power as the Yamahas into seven channels, though this doesn’t seem to make a difference in the subjective part of the review. Here’s my question: Is a receiver’s power output in seven-channel mode not an important factor when it comes to sound quality? Just looking at test results, I would have expected the Yamahas to get a poor rating for sound, but their reviews are consistently excellent on that point. &mash;Jonty Rees / Austin, TX

Q How much amplifier power is too much power? My speakers have a 75-to-100-watt RMS power rating and are connected to an entry-level Yamaha receiver, so it’s safe to say they aren’t being pushed anywhere near their potential. I plan to upgrade to separates in the near future, however, and need to know how powerful an amp I should buy. Should I go with too much amp (200 watts RMS per channel), or just enough (125 watts RMS per channel)? —Audiophile Noob via e-mail