When a Speaker Isn’t Just a Speaker: JBL’s 1,500W Party Box and the Headphones That Flip Into One
On October 6, two very different companies asked the same question: what is a speaker allowed to be? One answered with 1,500 watts. The other answered with a pair of headphones that unfold into one.
The loudest thing JBL has ever shipped
JBL’s PartyBox Ultimate 2 is the new top of its party-speaker line, and the headline number is 1,500W — 400W more than the PartyBox Ultimate it replaces. Under the grille sit two 10-inch woofers, two 5-inch midrange drivers, two tweeters and dual bass ports. It is also the first PartyBox with a real touchscreen — the volume knob doubles as a display — and it adds Wi-Fi 6, Bluetooth 6 and Auracast, with optical, XLR line-in and USB-C inputs and an IPX4 cabinet. It is $1,799.95, on sale now at JBL’s own store and Best Buy, with wider retail following in 2027. There is also an EasySing mode that uses AI vocal removal to strip the vocal out of any track and turn it into instant karaoke.
And headphones that turn into a speaker
The TDM Neo takes the opposite route to the same idea. It is a $249 pair of over-ear headphones built around four 40mm drivers — two firing inward for headphone mode, two firing outward for speaker mode at 5W. Worn normally you get passive noise isolation and a claimed 200 hours of battery; twist them and they run as a portable speaker for up to 16 hours. They weigh 340g, use Bluetooth 6.0, carry a multi-array microphone for calls, and pair with an app that adds a Game Mode, per-mode EQ and device location tracking. Black or white, available in the US now.
What it actually means for your room
Wattage is marketing. That 1,500W figure is a headline peak number, not a spec you can line up against another brand’s RMS rating. What decides whether a speaker fills your room is driver size and count, whether there is a genuine subwoofer in the chain, and the volume of the room itself. A 1,500W tower is absurd in an apartment; a small box in a large, hard-surfaced room is worse, no matter what the badge claims. If you are weighing specs, start with our soundbar buying guide and our roundup of budget soundbars that punch above their price.
The form factor is blurring. The Neo exists because people resent choosing between packing headphones and packing a speaker. A device that is convincingly both — and honest about the trade-offs (16 hours in speaker mode versus 200 as headphones, five watts of outward power rather than a full amplifier) — is a smarter answer than a bigger single-purpose box.
The features worth watching are Auracast, which broadcasts one audio source to many speakers and headphones at once, and on-device AI, which is what makes the karaoke trick possible without a subscription or a cloud round-trip. Both are quietly moving from flagship novelty toward the mid-range.
How to buy in this moment
Ignore the biggest number on the box. Match the speaker to the room you actually have, then decide which features you will really use — a genuine subwoofer and clean dialogue matter far more than a wattage figure. If you are building around a console or a desktop, a proper gaming soundbar will beat a party box for positional audio, while a Dolby Atmos soundbar is the better route for film.
If the party-speaker idea appeals but the $1,799 price and the roadie do not, a portable like the sanag S9S fills a normal living room for a fraction of that, with the AI-speaker smarts built in rather than bolted on. And if your listening is more “couch and a record” than “backyard block party,” the House of Marley Get Together 2 XL leans warm and is built to be looked at — see our take on whether vinyl is still worth it in 2026 for the rest of that setup.
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