Short answer: both are discontinued, so this only matters if you are buying used. Used, the JBL Partybox 300 is the better pick: it ranks #10 of 44 party speakers by sound quality (rated 4.3/5), against #33 (rated 2.7/5) for the Onn Large Party gen 1. If you want one new, the JBL Partybox Club 120 ranks #6 at $349.95.
The JBL Partybox 300 is the better-sounding, deeper-bass option. Exceptional sound quality with crisp, crystal clear highs and midranges, hard punchy bass without muddiness. Its bass reaches about 40Hz before falling 10dB, against 60Hz for the Onn Large Party gen 1. It is rated for 18 hours of battery against 13 for the Onn Large Party gen 1. The catch: Hard to carry, too tall, drags on the ground.
The Onn Large Party gen 1 is the lighter choice. A genuinely useful feature set for a compact party speaker: FM radio, 3.5mm aux, USB-A phone charging, a mic/guitar input, lights, and Party Sync pairing. At 23.1 lbs (10.5 kg) it weighs noticeably less than the JBL Partybox 300 at 35.3 lbs (16 kg). It links with other speakers (Party Sync Mode), which the JBL Partybox 300 cannot. Watch for: Sound is not a strong reason to seek one out.
Buy the JBL Partybox 300 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 JBL Partybox Club 120 instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox 300 | Onn Large Party gen 1 | |
|---|---|---|
| Price | $300 Discontinued | $100 Discontinued |
| Ranked | #10 of 44 in Party Size Portable Bluetooth Speakers | #33 of 44 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 40Hz | ~60Hz |
| Battery Life | 18 hours (Manufacturer specified) | 13 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 4.2 | - |
| Dimensions | 27” x 13” x 12.7” (685.8 x 330.2 x 322.6 mm) | 11.1” x 21.7” x 10.3” (281 x 552 x 262 mm) |
| EQ | No | No |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) | - |
| Guitar Input | Yes | - |
| IP Rating | None | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | No | Yes (Party Sync Mode) |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Yes (lying down) | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 35.3 lbs (16 kg) | 23.1 lbs (10.5 kg) |
| Amplifier Power | 120W | - |
| Drivers | 2x 6.5” (165mm) woofers + 3x 2.25” (57mm) tweeters | 8” (203mm) woofer + drivers |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Strap | No | No |
| FM Tuner | - | Yes |
| 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 4, 2026 at 9:58 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
JBL Partybox 300: $300 Discontinued eBay
Newer model: the JBL Partybox 330, ranked higher, rated 4.6/5.
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 Partybox 100. No real reason to ever get one, get a Partybox 100 instead. Discontinued.
Full JBL Partybox 300 review and specifications →
| 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
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- JBL Partybox 300 vs JBL Partybox 110
- JBL Partybox 300 vs Onn XL Wireless Party Speaker
- JBL Partybox 300 vs JBL Partybox 100
- JBL Partybox 300 vs Zealot PT21
- JBL Partybox 300 vs JBL Partybox 130
- JBL Partybox 300 vs JBL Partybox Club 120
- JBL Partybox 300 vs Sony SRS-XP700
- JBL Partybox 300 vs Sony SRS-XP500
- See all 45 comparisons
Onn Large Party gen 1: $100 Discontinued eBay
Newer model: the Onn Large Party gen 2, ranked higher, rated 3.9/5.
Pros: A genuinely useful feature set for a compact party speaker: FM radio, 3.5mm aux, USB-A phone charging, a mic/guitar input, lights, and Party Sync pairing. Its rolling 10.5kg cabinet, carry handle and claimed 13-hour battery make it easy to take to casual outdoor gatherings, and it can play louder than a typical small Bluetooth speaker. Measured bass extension of ~60Hz (-10dB).
Cons: Sound is not a strong reason to seek one out. Reviewer comparisons find limited deep bass (about 60Hz at -10dB), uneven mids and a boxy, strained presentation at high volume. It has no app or EQ, no water rating, and is discontinued; the newer Onn Large Party gen 2 is the more sensible choice when available.
Full Onn Large Party gen 1 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~60Hz |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Digital Aux Input | No |
| Dimensions | 11.1” x 21.7” x 10.3” (281 x 552 x 262 mm) |
| Drivers | 8” (203mm) woofer + drivers |
| EQ | No |
| FM Tuner | Yes |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Party Sync Mode) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 23.1 lbs (10.5 kg) |
| Wheels | Yes |
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen. 2 & 1 🔉 🔉 How To Do TWS & TWS Sound Demo. Bluetooth Speakers in Garage More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox 110 🆚 Onn Large Party Speaker - Both Plugged In🔌 The Legend vs. the Budget Banger 🍿
- Jay’s Straight Up Reviews & More: W-King T11 (EQ1, Firmware 2.32) 🆚 Onn Large Party Speaker (Bass Boost Off/On) - Budget Battle!💥
- Jay’s Straight Up Reviews & More: Triple Threat Match ✨ JBL Partybox 110, Soundcore Rave+, ONN Large Party Speaker. Indoor Battle⚠️
- Jay’s Straight Up Reviews & More: W-King T9 🆚 ONN Large Party Speaker -By Request for Big Tee. Can the Smaller T9 Hang With The ONN?
- Head-to-Head Comparisons
- Onn Large Party gen 1 vs Philips NX200
- Onn Large Party gen 1 vs W-King T9 Pro
- Onn Large Party gen 1 vs Panasonic SC-TMAX5
- Onn Large Party gen 1 vs Sharp PS-929
- Onn Large Party gen 1 vs Soundboks Mix
- Onn Large Party gen 1 vs Ultimate Ears Hyperboom
- Onn Large Party gen 1 vs Soundboks Rider
- Onn Large Party gen 1 vs Soundcore Rave
- See all 31 comparisons