I purchased the 350 based on the sound quality I heard from the display in the store. Knowing that the display is not always the same as you'd hear at home, I still had high expectations due to the brand and the price point. after the automatic firmware update that addressed many peoples complaints about being too bassy, it's sound quality and soundstage were quite amazing playing Tidal music through their built in app via Heos. It is a great speaker and pairs easily and seemlessly with in Heos. The reason for 4 stars is due to a big bass drop at around 80%, which could be due to the type of magnets used on the speakers. However, it is a great sounding speaker and I do highly recommend it

Love it, the sound is great plenty of bass Hooks up easy to Bluetooth etc.

Love this speaker. Way more powerful than a comparable Sonos speaker and more bass than I would ever expect.

Nice loud speaker, I paired it with my Mac Studio. Two thumbs up

Big sound from a small package! Bass is outstanding, highs brilliant, and the mids are velvety smooth! I have a nine speaker home theater and this little guy sounds spectacular when compared with it. I played the same music in two separate rooms using HEOS and it sounded identical. The home theater is Marantz with Phase Technology speakers and SVS sub, so not a home theater in a box. Took it out on the deck and it filled the back yard with reference quality sound at 1/3 power, truly impressive. I had a small JBL Bluetooth speaker that has very limited bass and there is no comparison, the JBL just got handed down! I use an iPhone or iPad to send it music through Bluetooth and it pairs immediately. It was a breeze to set up, I’ve never had to touch the controls on top, which light up when you pass your hand over it, really cool! Some might consider it a drawback that you have to plug it in but I don’t have to worry about the battery going dead. And this will never see the beach, it’s too beautiful to subject to sand! This is without question the best wireless speaker I’ve ever listened to and my favorite tech device in our home. Best Buy had a very good sale price and it was ready for pickup in two days. Considering the price, I really thought I would be returning it but the sound blew me away! Most Bluetooth speakers are like listening to am radio, no clarity, and certainly no bass. This has a fullness that fills the room with rich, deep sound. I would not give it back if they gave me the full retail price! I haven’t heard the smaller models but if they are half as good don’t hesitate to make a purchase.