Short answer: the JBL Partybox Stage 320. It ranks #3 of 46 party speakers by sound quality, rated 4.6/5, at $499.95. The W-King T9 Pro ranks #32, rated 3.0/5, at $171.49, $328.46 cheaper, not enough of a saving to outweigh the sound-quality gap.
The T9 Pro’s case is almost entirely price. It has dual 6.5-inch woofers, a removable battery, TWS pairing and music-synced lighting for well under half the Stage 320’s cost, and its swappable battery is genuinely useful for long events. Reviewer comparisons describe its tuning as warm and gritty rather than clean, though, and it has no water rating and no app, leaving physical bass presets as the only real way to shape the sound.
The Stage 320 justifies its price with more consistent reviews and more features. It keeps more bass at high volume than JBL’s own previous-generation model, and adds a 5-band EQ, Auracast and IPX4 splash resistance that the T9 Pro lacks entirely. Its own compromise is a slightly sibilant treble at full blast.
Buy the T9 Pro if a swappable battery and rolling party-speaker size matter more than refined sound, and the price gap is the deciding factor.
Buy the Stage 320 if you want the more reliably reviewed speaker and can pay closer to full price for it.
Battery life favors the JBL Partybox Stage 320: rated for 18 hours against 12 hours for the W-King T9 Pro.
Water resistance is not close: the JBL Partybox Stage 320 is rated at IPX4 (splashing), well ahead of the W-King T9 Pro at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox Stage 320 | W-King T9 Pro | |
|---|---|---|
| Price | $499.95 | $171.49 |
| Ranked | #3 of 46 in Party Size Portable Bluetooth Speakers | #32 of 46 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 18 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Drivers | 2x 6.5” woofers, 2x 25mm tweeters | 2x 6.5” woofers, 2x 2.5” tweeters |
| EQ | Yes (5 band) | No |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-A, 5V/2.1A) | No |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | Yes |
| Weight | 36.4 lbs (16.5 kg) | 20 lbs (9.05 kg) |
| Amplifier Power | 240W | 250W (peak) |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | Yes |
| Dimensions | 26.3”H x 13.2”W x 15.2”D (669 x 335 x 385 mm) | 10.8” x 10.1” x 21.1” (274 x 255.7 x 535.5 mm) |
| Strap | No | - |
| Charging Time | - | 4 hours |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
Related Speaker Comparisons
More top alternatives to JBL Partybox Stage 320:
- Sony ULT Tower 7 vs JBL Partybox Stage 320
- JBL Partybox 330 vs JBL Partybox Stage 320
- JBL Partybox 310 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs JBL Partybox Stage 320
- JBL Partybox Club 120 vs JBL Partybox Stage 320
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
JBL Partybox Stage 320: $499.95 Amazon $499.95 eBay
Newer model: the JBL Partybox 330, ranked higher, rated 4.6/5, released Jun 2026.
Older models: the JBL Partybox 310 (ranked lower, rated 4.5/5) and the JBL Partybox 300 (ranked lower, rated 4.3/5). See every JBL PartyBox generation.
Same family: the JBL Partybox Club 120 (smaller model, ranked lower, rated 4.5/5) and the JBL Partybox Ultimate (larger model, rated 4.7/5).
Pros: Among the best-sounding party speakers in its size class, and it keeps more bass than the JBL Partybox 310 at high volume. Two 6.5-inch woofers and two tweeters run on 240W, with a removable battery rated for 18 hours, a 5-band app EQ, mic and guitar inputs and Auracast linking. A handle and wheels make the 16.5 kg cabinet easy to move, and the color lighting modes are customizable.
Cons: Slightly sibilant in the treble at full blast. Very large.
Full JBL Partybox Stage 320 review and specifications →
| Released | Apr 2024 (2 years ago) |
|---|---|
| Amplifier Power | 240W |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Digital Aux Input | No |
| Dimensions | 26.3”H x 13.2”W x 15.2”D (669 x 335 x 385 mm) |
| Drivers | 2x 6.5” woofers, 2x 25mm tweeters |
| EQ | Yes (5 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Partially |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 36.4 lbs (16.5 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: JBL Partybox 320 vs 520 - indoor listening session More from Oluv’Sone →
- Oluv Patreon: JBL Partybox 320 vs 520 - outdoor test
- M1MTechChannel: soundcore Rave 3S mit 200W | LAUTER als die JBL Partybox 320 ? More from M1MTechChannel →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To? More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🥳 A Family Feud! Battery Powered🔋Bluetooth Party Speakers Face-Off🤬
- GYMCADDY: JBL PartyBox Stage 320 Review - Big Upgrades Everywhere, Worth The Upgrade More from GYMCADDY →
- Head-to-Head Comparisons
- JBL Partybox Stage 320 vs JBL Partybox 330
- JBL Partybox Stage 320 vs JBL Partybox 310
- JBL Partybox Stage 320 vs Sony ULT Tower 5
- JBL Partybox Stage 320 vs Sony ULT Tower 7
- JBL Partybox Stage 320 vs JBL Partybox Club 120
- JBL Partybox Stage 320 vs JBL Partybox 130
- JBL Partybox Stage 320 vs JBL Partybox 100
- JBL Partybox Stage 320 vs JBL Partybox 110
- See all 83 comparisons
W-King T9 Pro: $171.49 AliExpress $171.49 eBay
Pros: A feature-rich rolling party speaker with dual 6.5-inch woofers, removable battery, TWS pairing, bass presets and music-synced lighting. The swappable battery is especially useful for long events, and its strong output gives it much more headroom than compact Bluetooth speakers.
Cons: Reviewer comparisons describe the tuning as warm and gritty rather than clean or detailed. Its claimed output figures should not be mistaken for neutral sound quality, and a large cabinet with no stated water rating is a poor fit for wet outdoor use.
Full W-King T9 Pro review and specifications →
| Released | Feb 2024 (2 years ago) |
|---|---|
| Amplifier Power | 250W (peak) |
| App | No |
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Charging Time | 4 hours |
| Digital Aux Input | No |
| Dimensions | 10.8” x 10.1” x 21.1” (274 x 255.7 x 535.5 mm) |
| Drivers | 2x 6.5” woofers, 2x 2.5” tweeters |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| USB Playback | Yes |
| Weight | 20 lbs (9.05 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons