Short answer: both are discontinued, so this only matters if you are buying used. Used, the Sony SRS-XP700 is the better pick: it ranks #14 of 46 party speakers by sound quality (rated 4.0/5), against #42 (rated 2.3/5) for the Sony GTK-XB90. If you want one new, the JBL Partybox Stage 320 ranks #3 at $499.95.
The Sony SRS-XP700 is the better-sounding, longer-running pick. Dual 6.69” woofers, multi-tweeter X-Balanced Speaker Units with rear tweeter for 360 effect. It is rated for 25 hours of battery against 16 for the Sony GTK-XB90. It has an adjustable EQ, which the Sony GTK-XB90 lacks. The catch: Weird midrange peak.
What the Sony GTK-XB90 does well: Deep punchy EXTRA BASS technology for party use. The tradeoff: Bass is muddy and not deep, weird midrange peak, rolled off treble and overall strange tuning.
Buy the Sony SRS-XP700 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the JBL Partybox Stage 320 instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Sony SRS-XP700 | Sony GTK-XB90 | |
|---|---|---|
| Price | $392.00 Discontinued | $429 Discontinued |
| Ranked | #14 of 46 in Party Size Portable Bluetooth Speakers | #42 of 46 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 50Hz | ~50Hz |
| Battery Life | 25 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | LDAC, AAC, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.0 | - |
| Charging Time | 3 hours | - |
| Dimensions | 12.3” x 27.3” x 14.4” (313 x 693 x 367 mm) | 13.2” x 26.4” x 13.2” (336 x 670 x 335 mm) |
| EQ | Yes | No |
| Guitar Input | Yes | - |
| IP Rating | None | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A) | Yes (USB-A, 2.1A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | No | No |
| USB Playback | Yes | No |
| Weight | 37.3 lbs (16.9 kg) | 30.9 lbs (14 kg) |
| Amplifier Power | 78W RMS | - |
| Drivers | 2x 170mm woofers + 3x 60mm front tweeters + 1x 50mm rear tweeter | 12cm drivers + passive radiators |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Strap | No | - |
Related Speaker Comparisons
More worthwhile head-to-heads for Sony SRS-XP700:
- Sony ULT Tower 7 vs Sony SRS-XP700
- JBL Partybox 330 vs Sony SRS-XP700
- JBL Partybox Stage 320 vs Sony SRS-XP700
- JBL Partybox 310 vs Sony SRS-XP700
- Sony ULT Tower 5 vs Sony SRS-XP700
Prices on this page were last checked October 12, 2026 at 4:13 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
Sony SRS-XP700: $392.00 Discontinued Amazon $392.00 eBay
Older models: the Sony GTK-XB90 (ranked lower, rated 2.3/5) and the Sony GTK-XB72 (ranked lower, rated 2.2/5). See every Sony GTK, XP and XV generation.
Pros: Dual 6.69” woofers, multi-tweeter X-Balanced Speaker Units with rear tweeter for 360 effect. Exceptional 25-hour battery (18-22 hours real-world with LEDs). IPX4 splash-resistant. MEGA BASS for deep punchy sound. Karaoke (mic + guitar inputs), LED lights with stroboscopic effect. Sony Music App integration for microphone control and advanced settings. Measured bass extension of 50Hz (-10dB).
Cons: Weird midrange peak. Slightly less loud than a JBL Partybox 310. Bass not as deep as a JBL Partybox 310/300/110/100. Discontinued.
Full Sony SRS-XP700 review and specifications →
| Released | Apr 2021 (5 years ago) |
|---|---|
| Amplifier Power | 78W RMS |
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 50Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | LDAC, AAC, SBC |
| Bluetooth Version | 5.0 |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 12.3” x 27.3” x 14.4” (313 x 693 x 367 mm) |
| Drivers | 2x 170mm woofers + 3x 60mm front tweeters + 1x 50mm rear tweeter |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | None |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| Strap | No |
| TWS | No |
| USB Playback | Yes |
| Weight | 37.3 lbs (16.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony SRS-XP700 vs Sony SRS-XP500
- Sony SRS-XP700 vs Zealot PT21
- Sony SRS-XP700 vs Sony SRS-XV500
- Sony SRS-XP700 vs Onn XL Wireless Party Speaker
- Sony SRS-XP700 vs Onn Large Party gen 2
- Sony SRS-XP700 vs JBL Partybox 300
- Sony SRS-XP700 vs Soundcore Rave 3S
- Sony SRS-XP700 vs JBL Partybox 110
- See all 39 comparisons
Sony GTK-XB90: $429 Discontinued eBay
Newer model: the Sony SRS-XP700, ranked higher, rated 4/5, released Apr 2021 (also discontinued). See every Sony GTK, XP and XV generation.
Same family: the Sony GTK-XB60 (smaller model, ranked lower, rated 2.1/5).
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 →
| Released | Sep 2017 (9 years ago) |
|---|---|
| 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