Q: Who makes that $349 Bluetooth turntable you mentioned in the article about the Q Acoustics M40 wireless speakers? Where can I buy it?

— A.P., Milwaukee

A: The $349 TEAC TN-280BT-A3 Bluetooth Wireless Turntable is one of the nicest turntables under $500. From storied Japanese manufacturer TEAC, it has a built-in phono preamp and Bluetooth. It is well-made and pleasant to work with and this applies especially to the tonearm, which has a removable headshell, feels substantial and has very smooth cuing action.

The TN-280BT-A3 makes a great record player for a traditional stereo with an amplifier and wired speakers, as well as a good match to high-end wireless speakers like the Q Acoustics M40. It will also work well with headphones, earphones and Bluetooth speakers in a bedroom, dorm or office.

It can be used wired with your main stereo and play on a Bluetooth speaker in another room, providing even more flexibility and value from your purchase.

The secret sauce to my recommendation is a dramatic, no-charge upgrade offered by LP Gear.

The Audio-Technica AT3600L that comes premounted on the TEAC turntable is the world’s most popular phono cartridge, but the sound rates as average. The stylus has a huge impact on the way a cartridge sounds, and sometimes the only difference between an entry-level and expensive cartridge is the stylus. Upgrading the AT3600L with the LP Gear CFN3600LE carbon-fiber stylus transforms the cartridge from average to a superstar, with a prominent stereo magazine once rating it in the same class as cartridges selling for up to $700.

I was very skeptical of this reputation, but when I heard it I was a believer.

The CFN3600LE gets much more music out of the grooves and the sound is satisfying, detailed and engaging, producing very agreeable sound that makes you want to listen more and more. I cannot overstate how dramatic of an improvement the stylus makes, and if you have an AT3600L on your turntable now, upgrading with a $39.98 CFN3600LE stylus is a great investment.

Your ears will thank you, as will your wallet because it is quite the upgrade for under $40.

LP Gear now offers the TEAC TN-280BT-A3 in a “Carbon Upgrade” version with a preinstalled CFN3600LE stylus for the $349 list price, with free shipping.

Providing this transformative stylus upgrade at no additional cost makes it one of the best turntable values I have seen. It provides quality, high performance and the flexibility of Bluetooth and wired operation all at a bargain price. Learn more at lpgear.com and teacusa.com.

Q: I read your review of the ZVOX AV455 soundbar and it reminded me of the new Evo One streaming audio system. It has optical and HDMI-eARC inputs to pair it with a television, and the specs look impressive. Have you had the opportunity to hear it at one of the trade shows you attend? I’m curious to hear your take on it. I like the idea of an all-in-one multi-input device that produces crisp, sharp audio.

— D.P., Sherwood, Oregon

A: I saw and heard the Cambridge Audio Evo One at November’s Capital Audiofest. I am very familiar with the Cambridge Audio Evo streaming amplifiers that provide the foundation it is built upon, and will start there.

The award-winning Cambridge Audio Evo 150 is pretty much my favorite audio component of all time. I have always been very old-school in my approach and have a large amplifier connected to a preamplifier, a streamer and other full-size components connected to the preamplifier. It takes up a lot of space on my audio rack, collects a lot of dust and there is a rat’s nest of wires tying it all together.

Enter the compact Evo 150, which can replace three of those full-size components while providing similar or superior performance. I found that when everything is so easily controlled by my tablet or phone, I use my stereo even more frequently. (And it gets a lot of use already!) The large, high-quality display shows album art, track information or analog power meters, and if you use the matching Evo CD Transport, it displays album art when you play a CD. At $2,999 the Evo 150 is not inexpensive, but it costs less than multiple separate components of comparable quality, and the small size, high performance, simplicity of operation and beautiful display make it greater than the sum of its parts.

The $1,499 Evo One takes this goodness and puts it in a lovely cabinet as the foundation of a single-piece home entertainment system. It is the nicest of any single-piece system I have experienced, by virtue of the superior Evo platform as well as the 14 high-quality speakers powered by 700 watts of amplification. There are also new features in the easy-to-use Cambridge StreamMagic app that controls the system. For example, there is a slider with an icon representing the Evo One as placed in your room. Moving the slider moves the icon, which fine-tunes the sound to the room placement. There are connections for a television, USB, a turntable input and other components like CD players.

Compared to a similarly priced soundbar system, you give up some home theater functionality. The Evo One has HDMI-eARC, but does not have Dolby Atmos or matching wireless surround speakers to provide true surround sound. Pretty much every soundbar package selling for around $1,500 has Atmos, wireless surround speakers and a wireless subwoofer. What the soundbar won’t have is the variety of inputs, streaming functionality, the crisp and colorful display, and the superior sound quality and style of the Evo One.

I think you could decide based on intended usage. If you want surround sound from separate speakers placed around the room, get a soundbar with wireless surround speakers. If you prioritize simplicity and flexibility, the best possible sound quality and elegant industrial design, the Evo One is your choice. I also think it is a better long-term investment than a $1,500 soundbar. Video and surround sound technology changes frequently, but beautiful stereo music is forever.