Short answer: the W-King T9 Pro. It ranks #32 of 46 party speakers by sound quality (rated 3.0/5) at $171.49 and is still sold new; the Sony GTK-XB72 ranks #43 (rated 2.2/5) and is discontinued, so it is only an option used.
The W-King T9 Pro is the better-sounding, lighter choice. 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 noticeably less than the Sony GTK-XB72 at 26.9 lbs (12.2 kg). The catch: Reviewer comparisons describe the tuning as warm and gritty rather than clean or detailed.
The Sony GTK-XB72 is the longer-running choice. Exceptional sound quality, powerful bass, vibrant multi-colored LED lights. It is rated for 23 hours of battery against 12 for the W-King T9 Pro. It supports LDAC Bluetooth, which the W-King T9 Pro lacks. It links with other speakers (Partychain up to 100 speakers), which the W-King T9 Pro cannot. Watch for: No deep bass at all, weird midrange peak, rolled off treble and overall strange tuning.
Buy the W-King T9 Pro. It is rated higher for sound quality and still sold new, while the Sony GTK-XB72 is discontinued.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| W-King T9 Pro | Sony GTK-XB72 | |
|---|---|---|
| Price | $171.49 | $349 Discontinued |
| Ranked | #32 of 46 in Party Size Portable Bluetooth Speakers | #43 of 46 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 23 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 | 4.2 |
| Charging Time | 4 hours | - |
| Dimensions | 10.8” x 10.1” x 21.1” (274 x 255.7 x 535.5 mm) | 13.6” x 25.8” x 14.9” (345 x 656 x 379 mm) |
| Drivers | 2x 6.5” woofers, 2x 2.5” tweeters | 10cm driver + passive radiators |
| EQ | No | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | None | None |
| Party Mode | No | Yes (Partychain up to 100 speakers) |
| Power Bank | No | Yes (USB-A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | No | No |
| USB Playback | Yes | Yes |
| Weight | 20 lbs (9.05 kg) | 26.9 lbs (12.2 kg) |
| Amplifier Power | 250W (peak) | - |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | - |
| Power Input | USB-C | AC Power cord |
| Bass Extension (-10dB) | - | ~56Hz |
| FM Tuner | - | Yes |
| Strap | - | No |
Related Speaker Comparisons
How W-King T9 Pro compares with other leading options:
- Sony ULT Tower 7 vs W-King T9 Pro
- JBL Partybox 330 vs W-King T9 Pro
- JBL Partybox Stage 320 vs W-King T9 Pro
- JBL Partybox 310 vs W-King T9 Pro
- Sony ULT Tower 5 vs W-King T9 Pro
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
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
Sony GTK-XB72: $349 Discontinued eBay
Newer model: the Sony SRS-XP700, ranked higher, rated 4/5, released Apr 2021 (also discontinued). It adds app control and adjustable EQ.
Older model: the Sony GTK-XB90 (ranked higher, rated 2.3/5). See every Sony GTK, XP and XV generation.
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. Measured bass extension of ~56Hz (-10dB).
Cons: No deep bass at all, weird midrange peak, rolled off treble and overall strange tuning. Discontinued.
Full Sony GTK-XB72 review and specifications →
| Released | Mar 2019 (7 years ago) |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~56Hz |
| Battery Life | 23 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 13.6” x 25.8” x 14.9” (345 x 656 x 379 mm) |
| Drivers | 10cm driver + passive radiators |
| EQ | No |
| FM Tuner | Yes |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| USB Playback | Yes |
| Weight | 26.9 lbs (12.2 kg) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons