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 #43 (rated 2.2/5) for the Sony GTK-XB72. If you want one new, the Sony ULT Tower 5 ranks #5 at $448.
The Sony SRS-XP700 is the better-sounding, deeper-bass option. Dual 6.69” woofers, multi-tweeter X-Balanced Speaker Units with rear tweeter for 360 effect. Its bass reaches about 50Hz before falling 10dB, against 56Hz for the Sony GTK-XB72. It has an adjustable EQ, which the Sony GTK-XB72 lacks. The catch: Weird midrange peak.
The Sony GTK-XB72 is the lighter option. Exceptional sound quality, powerful bass, vibrant multi-colored LED lights. At 26.9 lbs (12.2 kg) it weighs noticeably less than the Sony SRS-XP700 at 37.3 lbs (16.9 kg). The catch: No deep bass at all, 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 Sony ULT Tower 5 instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Sony SRS-XP700 | Sony GTK-XB72 | |
|---|---|---|
| Price | $392.00 Discontinued | $349 Discontinued |
| Ranked | #14 of 46 in Party Size Portable Bluetooth Speakers | #43 of 46 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 50Hz | ~56Hz |
| Battery Life | 25 hours (Manufacturer specified) | 23 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | LDAC, AAC, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.0 | 4.2 |
| Charging Time | 3 hours | - |
| Dimensions | 12.3” x 27.3” x 14.4” (313 x 693 x 367 mm) | 13.6” x 25.8” x 14.9” (345 x 656 x 379 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) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | No | No |
| USB Playback | Yes | Yes |
| Weight | 37.3 lbs (16.9 kg) | 26.9 lbs (12.2 kg) |
| Amplifier Power | 78W RMS | - |
| Drivers | 2x 170mm woofers + 3x 60mm front tweeters + 1x 50mm rear tweeter | 10cm driver + passive radiators |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Strap | No | No |
| FM Tuner | - | Yes |
Related Speaker Comparisons
How Sony SRS-XP700 compares with other leading options:
- 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.
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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-XB72: $349 Discontinued eBay
Newer model: the Sony SRS-XP700, ranked higher, rated 4/5, released Apr 2021 (also discontinued). It adds app control and adjustable EQ.
Older model: the Sony GTK-XB90 (ranked higher, rated 2.3/5). See every Sony GTK, XP and XV generation.
Pros: Exceptional sound quality, powerful bass, vibrant multi-colored LED lights. ClearAudio+ and Extra Bass technology for dynamic sound. LIVE SOUND button with angled speakers and DSP for 3D sound experience. FM radio, USB, RCA inputs with Music Center app control for lighting effects and EQ. Easy to use with convenient Bluetooth and FM radio. Measured bass extension of ~56Hz (-10dB).
Cons: No deep bass at all, weird midrange peak, rolled off treble and overall strange tuning. Discontinued.
Full Sony GTK-XB72 review and specifications →
| Released | Mar 2019 (7 years ago) |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~56Hz |
| Battery Life | 23 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 13.6” x 25.8” x 14.9” (345 x 656 x 379 mm) |
| Drivers | 10cm driver + passive radiators |
| EQ | No |
| FM Tuner | Yes |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| USB Playback | Yes |
| Weight | 26.9 lbs (12.2 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons