Short answer: the Ultimate Ears Hyperboom, though the Sony GTK-XB90 is close on price. The XB90 promises deep punchy EXTRA BASS for parties, but the body says its bass is muddy and not deep, with a weird midrange peak and rolled off treble. The Hyperboom is the better-specified speaker with its 2x 4.5” woofers, 2x 1” tweeters and 2x passive radiators, yet it is very expensive for what it does and sounds a bit dull and muddy.
Buy the Ultimate Ears Hyperboom. It is rated higher for sound quality, and the Sony GTK-XB90 is discontinued, so it is only available used.
If battery life is a priority, the Ultimate Ears Hyperboom is rated for 24 hours versus 16 hours for the Sony GTK-XB90.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Hyperboom | Sony GTK-XB90 | |
|---|---|---|
| Price | $399.99 | $429 Discontinued |
| Ranked | #28 of 44 in Party Size Portable Bluetooth Speakers | #40 of 44 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 55Hz | ~50Hz |
| Battery Life | 24 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.0 | - |
| Charging Time | 2.6 hours | - |
| Dimensions | 7.5” x 7.5” x 14.3” (190 x 190 x 364 mm) | 13.2” x 26.4” x 13.2” (336 x 670 x 335 mm) |
| Drivers | 2x 5.66” woofers, 2x 0.98” tweeters, passive radiators | 12cm drivers + passive radiators |
| EQ | No | No |
| IP Rating | None | None |
| Party Mode | Yes (PartyUp up to 50 speakers) | Yes (Partychain up to 100 speakers) |
| Power Bank | No | Yes (USB-A, 2.1A) |
| Power Input | AC Power brick | AC Power cord |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | No | No |
| USB Playback | No | No |
| Weight | 13 lbs (5.9 kg) | 30.9 lbs (14 kg) |
| Digital Aux Input | No | No |
| Strap | No | - |
| Lights | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Ultimate Ears Hyperboom:
- Sony ULT Tower 7 vs Ultimate Ears Hyperboom
- JBL Partybox 330 vs Ultimate Ears Hyperboom
- JBL Partybox Stage 320 vs Ultimate Ears Hyperboom
- JBL Partybox 310 vs Ultimate Ears Hyperboom
- Sony ULT Tower 5 vs Ultimate Ears Hyperboom
Prices on this page were last checked October 2, 2026 at 10:18 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Ultimate Ears Hyperboom: $399.99 Ultimate Ears eBay
Pros: Strong audio performance with 2x 4.5” woofers, 2x 1” tweeters, 2x passive radiators. Up to 24 hours battery at 50% volume (3 hours at max). Adaptive bass compensation for wall-reflective environments. Dual Bluetooth pairing, aux and optical inputs, USB-out for device charging. IPX4 splash-proof. Sliding rubber handle and compact square design. Measured bass extension of 55Hz (-10dB).
Cons: Very expensive for what it does, a bit dull and muddy sound. Not as loud as others in the class. Bass not as deep as a Partybox 100. External power brick for charging.
Full Ultimate Ears Hyperboom review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Charging Time | 2.6 hours |
| Digital Aux Input | No |
| Dimensions | 7.5” x 7.5” x 14.3” (190 x 190 x 364 mm) |
| Drivers | 2x 5.66” woofers, 2x 0.98” tweeters, passive radiators |
| EQ | No |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Bank | No |
| Power Input | AC Power brick |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| USB Playback | No |
| Weight | 13 lbs (5.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Hyperboom vs Soundboks Mix
- Ultimate Ears Hyperboom vs Soundboks Rider
- Ultimate Ears Hyperboom vs Samsung MX-ST50B
- Ultimate Ears Hyperboom vs W-King T9 Pro
- Ultimate Ears Hyperboom vs Klipsch Gig XXL
- Ultimate Ears Hyperboom vs Onn Large Party gen 1
- Ultimate Ears Hyperboom vs LG XL7
- Ultimate Ears Hyperboom vs W-King T12
- See all 37 comparisons
Sony GTK-XB90: $429 Discontinued eBay
Pros: Deep punchy EXTRA BASS technology for party use. 3x 2.36” tweeters + 2x 7.09” woofers, built-in LED lights sync with beat. 16 hours battery claimed (9 hours real-world at moderate volume with lights). Built-in handle, portable one-box design. Fiestable plugin controls party settings and DJ effects. Three-device simultaneous Bluetooth pairing. Measured bass extension of ~50Hz (-10dB).
Cons: Bass is muddy and not deep, weird midrange peak, rolled off treble and overall strange tuning. Discontinued.
Full Sony GTK-XB90 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~50Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Digital Aux Input | No |
| Dimensions | 13.2” x 26.4” x 13.2” (336 x 670 x 335 mm) |
| Drivers | 12cm drivers + passive radiators |
| EQ | No |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A, 2.1A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 30.9 lbs (14 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons