Short answer: the JBL Partybox 300. It ranks #8 of 50 party speakers by sound quality at $300; the Sony GTK-XB72 ranks #47 and costs $349, so there is not much of a tradeoff to weigh.
What the JBL Partybox 300 offers: 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. Watch for: 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.
What the Sony GTK-XB72 offers: Exceptional sound quality, powerful bass, vibrant multi-colored LED lights. ClearAudio+ and Extra Bass technology for dynamic sound. LIVE SOUND button with angled speakers and DSP for 3D sound experience. FM radio, USB, RCA inputs with Music Center app control for lighting effects and EQ. Easy to use with convenient Bluetooth and FM radio. Watch for: No deep bass at all, weird midrange peak, rolled off treble and overall strange tuning
Buy the JBL Partybox 300. It ranks higher for sound quality than the Sony GTK-XB72 and costs less, so the other one has nothing left to offer.
If sound quality matters at all to you, skip the Sony GTK-XB72. It ranks near the bottom of the 50 party speakers, so look higher up the list instead.
Specifications Side By Side
| JBL Partybox 300 | Sony GTK-XB72 | |
|---|---|---|
| Price | $300 Discontinued | $349 Discontinued |
| Ranked | #8 of 50 in Party Size Portable Bluetooth Speakers | #47 of 50 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 40Hz | ~56Hz |
| Battery Life | 18 hours (Manufacturer specified) | 23 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 | - |
| Dimensions | 27" x 13" x 12.7" (685.8 x 330.2 x 322.6 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 (Partychain up to 100 speakers) |
| 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 | No |
| USB Playback | Yes | Yes |
| Weight | 35.3 lbs / 16 kg | 26.9 lbs / 12.2 kg |
| Output Power | 120W | - |
| Drivers | 2x 6.5" (165mm) woofers + 3x 2.25" (57mm) tweeters | 10cm driver + passive radiators |
| Discontinued | Yes | Yes |
| Digital Aux Input | No | No |
Related Speaker Comparisons
Other pairings from the same speaker class worth checking:
- Soundcore Rave vs Sony GTK-XB90
- Panasonic SC-TMAX10 vs Sony GTK-XB60
- Zealot PT21 vs Sony GTK-XB90
- Soundcore Rave 3/3s vs Sony GTK-XB72
- Sony GTK-XB72 vs Sony GTK-XB60
Prices on this page were last checked August 27, 2026 at 10:09 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
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.
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 →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 40Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| 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) |
| Discontinued | Yes |
| 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 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Output Power | 120W |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes (lying down) |
| 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
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- JBL Partybox 300 vs JBL Partybox 130
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- JBL Partybox 300 vs Electro-Voice Everse 8
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Sony GTK-XB72: $349 Discontinued eBay
Pros: Exceptional sound quality, powerful bass, vibrant multi-colored LED lights. ClearAudio+ and Extra Bass technology for dynamic sound. LIVE SOUND button with angled speakers and DSP for 3D sound experience. FM radio, USB, RCA inputs with Music Center app control for lighting effects and EQ. Easy to use with convenient Bluetooth and FM radio.
Cons: No deep bass at all, weird midrange peak, rolled off treble and overall strange tuning. Discontinued.
Full Sony GTK-XB72 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~56Hz |
| Battery Life | 23 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Digital Aux Input | No |
| Discontinued | Yes |
| Drivers | 10cm driver + passive radiators |
| EQ | No |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| TWS | No |
| USB Playback | Yes |
| Weight | 26.9 lbs / 12.2 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons