Short answer: the JBL Partybox 330, if you are buying new. The JBL Partybox 300 ranks higher than the W-King T9 Pro (#10 vs #32 of 46 party speakers) but is discontinued; its replacement, the JBL Partybox 330, is rated 4.6/5 at $629.95 and is still sold new.
The JBL Partybox 300 is the better-sounding, longer-running option. Exceptional sound quality with crisp, crystal clear highs and midranges, hard punchy bass without muddiness. It is rated for 18 hours of battery against 12 for the W-King T9 Pro. Watch for: Hard to carry, too tall, drags on the ground.
The W-King T9 Pro is the lighter pick. A feature-rich rolling party speaker with dual 6.5-inch woofers, removable battery, TWS pairing, bass presets and music-synced lighting. At 20 lbs (9.05 kg) it weighs much less than the JBL Partybox 300 at 35.3 lbs (16 kg). The catch: Reviewer comparisons describe the tuning as warm and gritty rather than clean or detailed.
Buy the JBL Partybox 330, the replacement for the discontinued JBL Partybox 300; it is rated higher for sound quality than the W-King T9 Pro.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox 300 | W-King T9 Pro | |
|---|---|---|
| Price | $300 Discontinued | $171.49 |
| Ranked | #10 of 46 in Party Size Portable Bluetooth Speakers | #32 of 46 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 40Hz | - |
| Battery Life | 18 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 4.2 | 5.3 |
| Dimensions | 27” x 13” x 12.7” (685.8 x 330.2 x 322.6 mm) | 10.8” x 10.1” x 21.1” (274 x 255.7 x 535.5 mm) |
| EQ | No | No |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes | - |
| IP Rating | None | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | No | No |
| Power Bank | Yes (USB-A) | No |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes (lying down) | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | Yes |
| Weight | 35.3 lbs (16 kg) | 20 lbs (9.05 kg) |
| Amplifier Power | 120W | 250W (peak) |
| Drivers | 2x 6.5” (165mm) woofers + 3x 2.25” (57mm) tweeters | 2x 6.5” woofers, 2x 2.5” tweeters |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Strap | No | - |
| Charging Time | - | 4 hours |
| Wheels | - | Yes |
Related Speaker Comparisons
More top alternatives to JBL Partybox 300:
- Sony ULT Tower 7 vs JBL Partybox 300
- JBL Partybox 330 vs JBL Partybox 300
- JBL Partybox Stage 320 vs JBL Partybox 300
- JBL Partybox 310 vs JBL Partybox 300
- Sony ULT Tower 5 vs JBL Partybox 300
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 300: $300 Discontinued eBay
Newer model: the JBL Partybox 330, ranked higher, rated 4.6/5, released Jun 2026. See every JBL PartyBox generation.
Pros: Exceptional sound quality with crisp, crystal clear highs and midranges, hard punchy bass without muddiness. 2x 6.5” woofers + 3x 2.25” tweeters, bass boost function, 45Hz-20kHz frequency range. 18-hour battery with 10400mAh capacity. Multiple inputs (RCA, USB, 3.5mm aux, mic, guitar). LED light modes (meter/pulse/party). True Wireless Stereo pairing up to 2 units. Measured bass extension of 40Hz (-10dB).
Cons: Hard to carry, too tall, drags on the ground. Max spl and bass extension are only as good as the JBL Partybox 100. No real reason to ever get one, get a JBL Partybox 100 instead. Discontinued.
Full JBL Partybox 300 review and specifications →
| Released | Nov 2018 (7 years ago) |
|---|---|
| Amplifier Power | 120W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 40Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 27” x 13” x 12.7” (685.8 x 330.2 x 322.6 mm) |
| Drivers | 2x 6.5” (165mm) woofers + 3x 2.25” (57mm) tweeters |
| EQ | No |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | None |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes (lying down) |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 35.3 lbs (16 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- JBL Partybox 300 vs JBL Partybox 100
- JBL Partybox 300 vs Zealot PT21
- JBL Partybox 300 vs JBL Partybox 130
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- JBL Partybox 300 vs Sony SRS-XP700
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- See all 45 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