Short answer: the JBL Partybox 100 on measured sound quality, the Sony GTK-XB90 on price. The JBL Partybox 100 ranks #6 of 50 party speakers at $499.99. The Sony GTK-XB90 ranks #46 at $429, $70.99 cheaper.
What the JBL Partybox 100 offers: Quite neutral sound, pretty deep bass. Watch for: A slight peak in the upper mids. Slight TWS issue where the 2nd is slightly delayed. Just as loud and slightly deeper bass than a Stormbox Blast which is way smaller with better sound quality.
What the Sony GTK-XB90 offers: 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. Watch for: Bass is muddy and not deep, weird midrange peak, rolled off treble and overall strange tuning
Buy the JBL Partybox 100 when sound quality outweighs the price for you, and the Sony GTK-XB90 when the price outweighs sound quality instead.
If sound quality matters at all to you, skip the Sony GTK-XB90. It ranks near the bottom of the 50 party speakers, so look higher up the list instead.
Specifications Side By Side
| JBL Partybox 100 | Sony GTK-XB90 | |
|---|---|---|
| Price | $499.99 Discontinued | $429 Discontinued |
| Ranked | #6 of 50 in Party Size Portable Bluetooth Speakers | #46 of 50 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 41Hz | ~50Hz |
| Battery Life | 12 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 | - |
| Charging Time | 6.5 hours | - |
| Dimensions | 11.3" x 21.7" x 11.4" (288 x 551 x 290 mm) | - |
| EQ | No | No |
| Frequency Response | 45Hz - 18kHz (Manufacturer specified) | - |
| Guitar Input | Yes | - |
| IP Rating | None | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | No | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-A, 2.1A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | No |
| Weight | 21.4 lbs / 9.7 kg | 30.9 lbs / 14 kg |
| Output Power | 160W | - |
| Drivers | 2x 5.25" (133mm) woofers + 2x 2.25" (57mm) tweeters | 12cm drivers + passive radiators |
| Discontinued | Yes | Yes |
| Digital Aux Input | No | No |
Related Speaker Comparisons
A few more comparisons worth a look in the same class:
- JBL Partybox 110 vs JBL Eon One Compact
- JBL Partybox 310 vs Sony GTK-XB72
- JBL Partybox 110 vs Sony SRS-XP500
- JBL Partybox 100 vs JBL Partybox 130
- JBL Partybox 100 vs Mackie Thump Go
Prices on this page were last checked August 27, 2026 at 10:09 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.
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The Two Speakers In Full
JBL Partybox 100: $499.99 Discontinued Amazon eBay
Pros: Quite neutral sound, pretty deep bass.
Cons: A slight peak in the upper mids. Slight TWS issue where the 2nd is slightly delayed. Just as loud and slightly deeper bass than a Stormbox Blast which is way smaller with better sound quality. Discontinued.
Full JBL Partybox 100 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 41Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Charging Time | 6.5 hours |
| Digital Aux Input | No |
| Dimensions | 11.3" x 21.7" x 11.4" (288 x 551 x 290 mm) |
| Discontinued | Yes |
| Drivers | 2x 5.25" (133mm) woofers + 2x 2.25" (57mm) tweeters |
| EQ | No |
| Frequency Response | 45Hz - 18kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | None |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Output Power | 160W |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 21.4 lbs / 9.7 kg |
- Links
- Reviews, Comparisons and Sound Samples
- KULAS TECH SHOW: JBL Partybox 310, 100, on the Go Sound comparison More from KULASTECHSHOW20 →
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- HQ AUDIO Exchange: Bose S1 Pro vs. JBL PartyBox 100 Bass Sound Test 😱💥🔥
- DLX Willington: JBL Partybox 100 vs UE Hyperboom SoundBattle Does Size Matter🤔
- Stereo Specs: 🔥JBL PARTYBOX 100 vs PANASONIC SC TMAX10🔥BIG BASS Sound🔊Best 2021 Deep Sound Speakers👑USA
- DLX Willington: 🤣JBL Partybox 100 vs Sony GTK XB60 Sound Battle You Asked For It
- Oluv Patreon: Earfun UBoom X vs JBL Partybox 100 More from Oluv’Sone →
- Vua2hand: Solo Braven XXL/2 vs JBL Partybox 100 Sound test l Braven hay Jbl ?!!
- Reddit Search for JBL Partybox 100 Review
- Head-to-Head Comparisons
- JBL Partybox 100 vs JBL Partybox 130
- JBL Partybox 100 vs JBL Partybox 110
- JBL Partybox 100 vs JBL Partybox Club 120
- JBL Partybox 100 vs JBL Partybox 300
- JBL Partybox 100 vs JBL Partybox 310
- JBL Partybox 100 vs Electro-Voice Everse 12
- JBL Partybox 100 vs JBL Partybox Stage 320
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- See all 27 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.
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 Codecs | SBC, AAC, LDAC |
| Digital Aux Input | No |
| Discontinued | Yes |
| Drivers | 12cm drivers + passive radiators |
| EQ | No |
| IP Rating | None |
| 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
- Head-to-Head Comparisons