Short answer: the Zealot PT21. It ranks #12 of 46 party speakers by sound quality (rated 4.1/5) at $225.86 and is still sold new; the Sony GTK-XB60 ranks #44 (rated 2.1/5) and is discontinued, so it is only an option used. The Sony GTK-XB60’s replacement, the Sony SRS-XV500, is rated 4.0/5 at $299.
The Zealot PT21 is the better-sounding, longer-running option. Dual 166mm woofers and 200W output in a lighter, more compact body than the Zealot ZE41, with a bundled wireless microphone and echo effect built in for karaoke. It is rated for 60 hours of battery against 14 for the Sony GTK-XB60. It is rated IPX5, while the Sony GTK-XB60 has no water resistance. It has an adjustable EQ, which the Sony GTK-XB60 lacks. The catch: Unlike some other Zealot models, app-based EQ customization doesn’t appear to be fully supported yet, and IPX5 means it can handle splashes but not submersion.
What the Sony GTK-XB60 does well: 60W powerful sound performance with extra-bass technology for deep, punchy output. Watch for: No deep bass at all, weird midrange peak, rolled off treble and overall strange tuning.
Buy the Zealot PT21. It is rated higher for sound quality; the Sony GTK-XB60 is no longer sold new.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Zealot PT21 | Sony GTK-XB60 | |
|---|---|---|
| Price | $225.86 | $299 Discontinued |
| Ranked | #12 of 46 in Party Size Portable Bluetooth Speakers | #44 of 46 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | - |
| Dimensions | 21.1” x 8.6” x 11.9” (535 x 219 x 303 mm) | 10.4” x 21.7” x 10.7” (264 x 552 x 272 mm) |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers | 8cm driver + passive radiators |
| EQ | Yes (Bass, Voice, Standard modes) | No |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| MicroSD Playback | Yes | - |
| Amplifier Power | 200W | - |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Power Input | Type-C | AC Power cord |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | Yes |
| Weight | 20.7 lbs (9.4 kg) | 17.6 lbs (8 kg) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, AAC, LDAC |
| Lights | Yes | Yes |
| Battery Life | 60 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| Bass Extension (-10dB) | - | ~60Hz |
| Strap | - | No |
Related Speaker Comparisons
More top alternatives to Zealot PT21:
- Sony ULT Tower 7 vs Zealot PT21
- Zealot PT21 vs JBL Partybox 330
- JBL Partybox Stage 320 vs Zealot PT21
- JBL Partybox 310 vs Zealot PT21
- Sony ULT Tower 5 vs Zealot PT21
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
Zealot PT21: $225.86 AliExpress $225.86 eBay
Pros: Dual 166mm woofers and 200W output in a lighter, more compact body than the Zealot ZE41, with a bundled wireless microphone and echo effect built in for karaoke. Quite deep bass for the price, even deeper than the JBL Boombox 4 in direct comparisons.
Cons: Unlike some other Zealot models, app-based EQ customization doesn’t appear to be fully supported yet, and IPX5 means it can handle splashes but not submersion.
Full Zealot PT21 review and specifications →
| Released | Nov 2025 (11 months ago) |
|---|---|
| Amplifier Power | 200W |
| App | No |
| Aux Input | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) |
| Battery Life | 60 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 21.1” x 8.6” x 11.9” (535 x 219 x 303 mm) |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers |
| EQ | Yes (Bass, Voice, Standard modes) |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 |
| Lights | Yes |
| MicroSD Playback | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | Type-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 20.7 lbs (9.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
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- Head-to-Head Comparisons
Sony GTK-XB60: $299 Discontinued eBay
Newer model: the Sony SRS-XV500, ranked higher, rated 4/5, released Jan 2024. See every Sony GTK, XP and XV generation.
Same family: the Sony GTK-XB90 (larger model, ranked higher, rated 2.3/5).
Pros: 60W powerful sound performance with extra-bass technology for deep, punchy output. 2x 5.12” woofers + 2x 1.97” tweeters. Up to 14 hours battery at reasonable levels (3 hours at full volume with extra bass and lamps). NFC support, flashy party lights, app control for light moods. Pair two XB60s for wider soundfield. Works as mini PA system with RCA/USB/mic ports. Measured bass extension of ~60Hz (-10dB).
Cons: No deep bass at all, weird midrange peak, rolled off treble and overall strange tuning. Discontinued.
Full Sony GTK-XB60 review and specifications →
| Released | Sep 2017 (9 years ago) |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~60Hz |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Digital Aux Input | No |
| Dimensions | 10.4” x 21.7” x 10.7” (264 x 552 x 272 mm) |
| Drivers | 8cm driver + passive radiators |
| EQ | No |
| 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 | 17.6 lbs (8 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons