Short answer: the JBL Partybox 300 for output and bass. The Sony XP500’s 20W 3-way system with dual passive radiators is well balanced, with clear highs, detailed mids and punchy bass, but it is not as loud and its bass is not as deep as a Partybox 100 or 110. The 300 delivers exceptional sound quality and hard punchy bass without muddiness, though it is hard to carry, too tall and drags on the ground.
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 Sony ULT Tower 7 instead.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox 300 | Sony SRS-XP500 | |
|---|---|---|
| Price | $300 Discontinued | $549.99 Discontinued |
| Ranked | #10 of 43 in Party Size Portable Bluetooth Speakers | #14 of 43 in Party Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 40Hz | 42Hz |
| Battery Life | 18 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | LDAC, AAC, SBC |
| Bluetooth Version | 4.2 | 5.0 |
| Dimensions | 27” x 13” x 12.7” (685.8 x 330.2 x 322.6 mm) | 10.8” x 22.5” x 11.6” (275 x 572 x 295 mm) |
| EQ | No | Yes |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) | - |
| Guitar Input | Yes | Yes |
| IP Rating | None | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| Party Mode | No | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Power Input | AC Power cord | AC Power cord |
| Stereo | Yes (lying down) | Partially |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | Yes |
| Weight | 35.3 lbs (16 kg) | 24.7 lbs (11.2 kg) |
| Amplifier Power | 120W | - |
| Drivers | 2x 6.5” (165mm) woofers + 3x 2.25” (57mm) tweeters | 2x 140mm woofers + 2x 50mm tweeters |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Strap | No | No |
| Charging Time | - | 3 hours |
Related Speaker Comparisons
How JBL Partybox 300 compares with other leading options:
- JBL Partybox 330 vs JBL Partybox 300
- JBL Partybox Stage 320 vs JBL Partybox 300
- JBL Partybox 310 vs JBL Partybox 300
- JBL Partybox 300 vs JBL Partybox Club 120
- JBL Partybox 130 vs JBL Partybox 300
Prices on this page were last checked October 2, 2026 at 10:18 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.
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 Sony SRS-XP700
- JBL Partybox 300 vs JBL Partybox Club 120
- JBL Partybox 300 vs JBL Partybox 310
- See all 33 comparisons
Sony SRS-XP500: $549.99 Discontinued Amazon eBay
Newer model: the Sony SRS-XV500, ranked lower, rated 4/5.
Pros: 20W 3-way speaker system with dual passive radiators, well-balanced sound (clear highs, detailed mids, punchy bass). 20-hour battery life, immersive room-filling sound. Party Connect feature links multiple compatible Sony speakers. USB charging port for device charging on-the-go. Built-in handle and IPX4 water resistance. Microphone input and karaoke support. Measured bass extension of 42Hz (-10dB).
Cons: Not as loud and bass not as deep as a JBL Partybox 100 or JBL Partybox 110. Discontinued.
Full Sony SRS-XP500 review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 42Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | LDAC, AAC, SBC |
| Bluetooth Version | 5.0 |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 10.8” x 22.5” x 11.6” (275 x 572 x 295 mm) |
| Drivers | 2x 140mm woofers + 2x 50mm tweeters |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | None |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| Strap | No |
| TWS | No |
| USB Playback | Yes |
| Weight | 24.7 lbs (11.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony SRS-XP500 vs Sony SRS-XP700
- Sony SRS-XP500 vs Zealot PT21
- Sony SRS-XP500 vs Onn Large Party gen 2
- Sony SRS-XP500 vs Onn XL Wireless Party Speaker
- Sony SRS-XP500 vs Soundcore Rave 3S
- Sony SRS-XP500 vs JBL Partybox 110
- Sony SRS-XP500 vs JBL Partybox 100
- Sony SRS-XP500 vs W-King T12
- See all 34 comparisons