TL;DR: The LG xboom Stage 501 is big, loud and wonderfully unapologetic, combining up to 220W output, a replaceable battery, flexible positioning and extensive connectivity with genuinely fun AI karaoke features. It’s excessive for casual listening, but as a portable party and karaoke machine, that’s precisely the point.

There are speakers you buy for some background music while cooking dinner, and then there are speakers that arrive looking like they’re expecting a fog machine, three microphones and someone yelling, “Are you ready?” The LG xboom Stage 501 very much belongs to the second category. This thing doesn’t want to sit politely in the corner playing lo-fi beats; it wants to become the party. And after spending time with it, that’s really the best way I can describe the Stage 501: LG has built less of a Bluetooth speaker and more of a portable entertainment system with a mild addiction to karaoke.

The headline numbers certainly fit the personality. There’s up to 220W of output when plugged into mains power, a 2.2-channel speaker arrangement, lighting effects, dual microphone inputs, a replaceable battery rated for up to 25 hours and a collection of AI-powered audio features. But none of those individually explain why I found the Stage 501 interesting. It’s the way LG has connected everything together — particularly karaoke, lighting, portability and sound processing — that makes this giant musical monolith considerably more fun than its specification sheet suggests.

The Stage 501 looks ready to start trouble

The first thing I noticed about the Stage 501 is that LG isn’t pretending this is some minimalist lifestyle speaker. At 11.7kg and almost 60cm tall, it’s a substantial chunk of hardware. Calling it portable is technically correct, although we’re talking “carry it from the house to the garden” portable rather than “throw it in your backpack” portable. Thankfully, LG has integrated handles into the chassis, so moving it around doesn’t feel like attempting a side quest involving an unusually heavy treasure chest.

I also really like how flexible the physical design is. The Stage 501 can stand vertically, sit horizontally, operate tilted or be mounted on a pole, which means I wasn’t locked into one specific setup. There’s even a rotating centre logo so the branding stays upright regardless of orientation. Is that remotely essential? No. Do I appreciate an engineer somewhere refusing to tolerate a sideways logo? Absolutely. IPX4 splash resistance also makes the whole thing feel better suited to outdoor gatherings, although I certainly wouldn’t mistake that for permission to throw it into a swimming pool.

The sound has the muscle this thing deserves

A speaker this size would be slightly embarrassing if it sounded timid, but LG has given the Stage 501 a proper 2.2-channel setup with two 5.25-inch woofers and two 2.5-inch full-range drivers. It can deliver up to 220W while plugged into mains power, with output dropping to 160W when running from the battery. That reduction is worth knowing about because I wouldn’t expect identical maximum performance when moving from an indoor powered setup to a completely wireless outdoor one.

What matters more to me is that LG has built plenty of control around that hardware. There are Bass Boost, Clear Voice and Standard modes alongside customizable EQ settings, AI Sound and Space Calibration Pro. I generally appreciate having both automatic processing and manual controls because sometimes I want the gadget to figure things out, and sometimes I want the gadget to stop thinking it’s smarter than me. The Stage 501 gives me that choice rather than forcing its processing onto everything.

Space Calibration Pro is AI doing an actual job

I’m increasingly suspicious whenever I see “AI” written on consumer electronics. We’ve reached the stage where I’m half expecting my next HDMI cable to summarize my emails. Space Calibration Pro, however, is exactly the sort of feature where automated processing makes sense. The Stage 501 is designed to move around, and a speaker placed against a wall is dealing with a very different acoustic environment from one sitting outside in an open space.

Having the speaker compensate for those changes is genuinely useful, particularly because I don’t want to manually fiddle with EQ every time I reposition it. AI Sound takes a similar approach by adjusting processing according to whatever is playing. Whether you’ll always prefer those decisions is another question — audio remains wonderfully subjective — but this isn’t AI being included purely because somebody needed another bullet point on the box. There’s a clear practical reason for it being here.

AI Karaoke Master completely changes the Stage 501

This is where the Stage 501 stops being merely another powerful party speaker and starts showing its wonderfully geeky side. AI Karaoke Master includes Vocal Remover, which can reduce the vocals from regular songs, alongside Key Changer for adjusting the pitch. In other words, I don’t necessarily need to hunt down dedicated karaoke versions before someone decides tonight is finally the night they’re going to unleash their inner Freddie Mercury. I can start with the music I’d normally play and let the Stage 501 perform some computational wizardry in the background.

I love the concept because it attacks one of karaoke’s biggest annoyances while also changing the personality of the entire speaker. Suddenly the lighting isn’t merely decorative RGB furniture, the microphone inputs aren’t random additions and the phone holder becomes genuinely useful. Even the ability to tilt or pole-mount the Stage 501 makes more sense when I’m treating it like a miniature PA and karaoke system rather than a giant Bluetooth speaker playing Spotify from the corner. There are reverb and DJ effects too, plus two 6.3mm microphone inputs for duets, although microphones aren’t included, so you’ll need to bring your own weapons before challenging someone to a vocal boss battle.

Vocal separation can depend heavily on how the original song was mixed, so I wouldn’t expect every track to emerge sounding like an untouched studio instrumental. But that’s almost beside the point because LG has found a much better angle here than simply chasing bigger wattage and louder bass. Plenty of party speakers can shake a room; giving people something genuinely fun to do with all that power creates a completely different experience. Put the Stage 501 in the middle of a gathering with two microphones and suddenly everyone thinks they’re auditioning for a talent show nobody agreed to host. Depending on your friends, that’s either the speaker’s greatest feature or a compelling argument for hiding the microphones before somebody discovers the power ballads playlist.

The lighting is gloriously unnecessary

Naturally, the Stage 501 lights up. Apparently blasting music loudly without synchronized illumination is now illegal under international party-speaker law. LG uses dual-bar LEDs, strobe effects and illuminated controls, while AI Lighting can synchronize everything with the music. It’s unapologetically flashy, and I’m completely fine with that because subtlety would feel bizarre on something that looks like it should be standing next to a DJ booth.

More importantly, the lighting fits the rest of the experience rather than feeling completely bolted on. Combine it with karaoke, music and the speaker’s PA-like design and the Stage 501 can transform an otherwise ordinary room into something considerably more energetic. Obviously, anyone buying this purely for listening to podcasts probably doesn’t need their speaker recreating the bridge of the Enterprise during a red alert. For parties, though, ridiculousness is part of the charm.

The replaceable battery and connectivity keep the party going

LG rates the Stage 501’s 99Wh battery for up to 25 hours under its specified test conditions, including Play Time Enhance mode with the lighting switched off. That’s important context because once I’m pushing the volume and turning the speaker into its own miniature light show, I’m obviously not expecting the same endurance. Charging takes around three hours, and maximum output drops from 220W on mains power to 160W on battery. What I appreciate much more than the headline runtime, though, is that the battery is removable. Replacement packs are sold separately, so there’s the option of swapping batteries instead of parking the entire speaker next to a socket waiting for it to recharge. Batteries also degrade long before good speakers necessarily become obsolete, making this one of those gloriously sensible features that deserves more attention than another AI sticker on the box.

LG has been similarly generous with connectivity, and the Stage 501 gives me plenty of ways to feed the beast. There’s Bluetooth with multipoint connectivity, Google Fast Pair and Auracast, while Party Link lets you connect additional compatible speakers. Auracast is particularly interesting here because the Stage 501 feels like something that could easily become part of a much bigger setup; covering a larger party wirelessly sounds considerably more appealing than turning the floor into a Mario Kart track made from audio cables. Wired options include USB-A, USB-C, a 3.5mm auxiliary input and two 6.3mm microphone ports, while the companion app handles additional EQ, lighting and other settings. Thankfully, LG hasn’t imprisoned every useful feature inside the app either, with important karaoke controls available directly on the speaker — exactly where they should be when there’s a queue of increasingly confident people waiting to commit musical crimes.

The Stage 501 isn’t trying to be sensible

And that’s probably my favourite thing about it. The Stage 501 doesn’t pretend to be an elegant little Bluetooth speaker for tasteful Sunday-afternoon jazz. It’s big, loud, illuminated and completely comfortable with the fact that somebody will eventually connect two microphones and attempt a duet nobody requested. LG has leaned into that personality instead of sanding away all the fun in pursuit of broader appeal.

There are compromises. At 11.7kg, I wouldn’t want to carry it particularly far. Maximum output requires mains power, microphones aren’t included, and the 25-hour battery figure represents specific conditions rather than every possible scenario. I’d also treat AI Vocal Remover as clever processing rather than actual sorcery; different recordings can present very different challenges. None of those things ruin the proposition, but they make it clear who this speaker is actually designed for.

Verdict

The LG xboom Stage 501 is the sort of gadget I enjoy because it knows exactly what it wants to be. LG hasn’t simply built a large Bluetooth speaker and sprinkled AI dust over it. The 220W maximum output, 2.2-channel hardware, flexible positioning, IPX4 protection, extensive connectivity, lighting and replaceable battery create a solid foundation, while AI Karaoke Master gives the Stage 501 something genuinely entertaining to do with all that hardware. It’s basically what happens when a Bluetooth speaker, karaoke machine and miniature PA system walk into a bar and decide to form a party.

It isn’t for everyone. If I wanted something compact for casual listening, I’d look elsewhere immediately because this thing is hilariously overqualified. But for parties, karaoke nights, gatherings and anyone who enjoys gadgets that encourage people to actually interact with them, the Stage 501 has real appeal. The replaceable battery earns bonus geek points, the connectivity is excellent, and AI Karaoke Master is one of those rare AI features that has an obvious purpose. Just remember: buying the speaker is easy. Surviving your friends’ third consecutive attempt at “Bohemian Rhapsody” is between you and whatever gods you believe in.