| Name | JBL PartyBox 520 | JBL PartyBox 300 |
|---|---|---|
| Image |  |
 |
| More views |  |
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| Type | Party | Party |
| MSRP | $879.95 | $499.95 |
| Released | 2025 | 2018 |
| Availability | Available | Discontinued |
| Check price: | Amazon | Amazon |
| Speaker configuration | ||
| Audio channels | 1.0 (mono) | 1.0 (mono) |
| Woofers (or full range): | 2× 7.5″ | 2× 6.5″ |
| Tweeters: | 2× 1″ | 2× 2.5″ |
| Subwoofers: | - | - |
| Audio specs & features | ||
| Watts RMS | 400 W | 240 W |
| Frequency range | 40.0 Hz - 20 kHz | 45.0 Hz - 18 kHz |
| Wireless stereo pairing? | ✔ TWS | ✔ TWS |
| Party mode? (mono) | ✔ Auracast | ❌ |
| Other (special) audio features? | Karaoke, AI Sound Boost | Karaoke: mix music w/ mic/instrument input |
| Connectivity | ||
| Bluetooth version? | 5.4 | 4.2 |
| Wi-Fi? | ❌ | ❌ |
| NFC? (for pairing) | ❌ | ❌ |
| Radio? | ❌ | ❌ |
| Audio inputs & outputs | ||
| Buit-in mic? (and function) | ❌ | ❌ |
| Guitar/mic input? | 1× TRS/XLR (mic), 1× TRS/XLR (guitar/mic) | 1× TRS (mic), 1× TRS (guitar) |
| USB-A playback? | ✔ (USB-C) | ✔ |
| 3.5 mm AUX in? | ✔ | ✔ |
| 3.5 mm AUX out? | ✔ | ❌ |
| Other in/outputs? | ❌ | RCA |
| Battery, power & charging | ||
| Battery? | ✔ | ✔ |
| Battery life | 15 hours | 18 hours |
| Charge time | 3 hrs | 5.0 hrs |
| Battery capacity | 99.02 Wh | 74.88 Wh |
| Swappable battery? | ✔ (extra battery sold separately) | ❌ |
| Charging port(s): | AC | AC and DC |
| Powerbank function? | Yes; 1× USB-C 30W | Yes; 1× USB-A |
| Buttons & controls | ||
| Sound mode button(s)? | 'Bass boost' | 'Bass Boost' |
| Sound effect buttons? | ✔ | ❌ |
| Other (special) buttons? | Mic EQ | ❌ |
| App? | JBL PartyBox app | ❌ |
| Voice assistant? | ❌ | ❌ |
| Lights | ||
| Colored LEDS? | 2× ring, 2× strips | 2× ring |
| Strobe LEDS? | 15× white LED | 4× white LED |
| Size & weight | ||
| Size (cm H×W×D): | 76.9×41.5×36.9 | 69.0×31.0×32.0 |
| Size (inch H×W×D): | 30.28×16.34×14.53 | 27.2×12.2×12.6 |
| Weight (kg): | 25.5 | 15.84 |
| Weight (lbs): | 56.2 | 34.9 |
| Physical features | ||
| IP Code | IPX4 | None |
| Transportation method? | Wheels, 1 handle | 2 handles |
| Color options: | 1 color: Black | 1 color: Black |
| Other features? | - | - |
| In the box | ||
| Charger/cables? | Power cable | Power cable |
| Accessories? | - | 12V DC cable (car charging) |
| More info | ||
| Model number | JBLPARTYBOX520 | JBLPARTYBOX300 |
| User guide / manual | Quick start guide | Quick start guide, Owner's Manual |
| Official site link: | JBL.com | JBL.com |
| Check price & reviews | ||
| See price and reviews: | Amazon | Amazon |
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