Short answer: the Bose S1 Pro+ for better sound quality, the W-King T9 Pro for the lower price. The Bose S1 Pro+ ranks #16 of 51 party speakers at $699. The W-King T9 Pro ranks #36 at $171.49, $527.51 cheaper.
What the Bose S1 Pro offers: Extremely compact and light with flexible placement options. Full sound with no lack of low-end output, crystal-clear audio quality. Three-channel mixer (2 mic/line + 1 line/Bluetooth). Auto EQ adjusts sound based on orientation. Multiple angled surfaces for various positioning including tilted portrait mode. Up to 11 hours battery life. Professional build quality. High efficiency drivers reach 2-3x the volume of typical speakers for the same wattage. Watch for: With full range music, it becomes distorted above ⅔ volume. Better suited for voice amplification. Not as much deep bass as the Everse 8, midrange sounds reasonably balanced. Treble is pretty boosted. Not stereo. Designed for more loudness than deeper bass.
What the W-King T9 Pro offers: 250W peak power, 120dB sound output with dual 6.5” woofers + dual 2.5” tweeters. Removable rechargeable battery allows continuous play via battery swapping. 12 custom bass settings for EQ adjustments by music genre. Music-synchronized LED lights (ambient to high-energy strobes). True Wireless Stereo for stereo pairing. Bluetooth 5.3, great customer service. Watch for: Sounds warm, somewhat gritty, not as detailed as higher ranked speakers
Buy the Bose S1 Pro+ if sound quality is the priority over the price, or the W-King T9 Pro if the price is the priority over sound quality.
Specifications Side By Side
| Bose S1 Pro+ | W-King T9 Pro | |
|---|---|---|
| Price | $699.00 | $171.49 |
| Ranked | #16 of 51 in Party Size Portable Bluetooth Speakers | #36 of 51 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 55Hz | - |
| Battery Life | 11 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC | SBC |
| Bluetooth Version | 5.0 | 5.3 |
| Charging Time | 5 hours | 4 hours |
| Dimensions | 13.1" x 9.4" x 11" (332.7 x 238.8 x 279.4 mm) | 10.8" x 10.1" x 21.1" (274 x 255.7 x 535.5 mm) |
| EQ | Yes | No |
| IP Rating | None | None |
| Microphone Input | Yes | - |
| Party Mode | Yes (Bose Party mode) | No |
| Power Bank | No | No |
| Power Input | AC Power cord | - |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | No | Yes |
| Weight | 14.3 lbs / 6.5 kg | 20 lbs / 9.05 kg |
| XLR Input | Yes | - |
| Drivers | 1x 6" (152mm) woofer + 3x 2.25" (57mm) tweeters | 2x 6.5" woofers, 2x 2.5" tweeters |
| Output Power | 150W | 250W (peak) |
| Max Volume | 109dB | - |
| Digital Aux Input | No | No |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
Related Speaker Comparisons
A few more comparisons worth a look in the same class:
- Zealot PT21 vs JBL Partybox 330
- JBL Partybox 300 vs JBL Eon One Compact
- Samsung MX-ST50B vs JBL Eon One Compact
- Bose S1 Pro+ vs Soundcore Rave
- Zealot PT21 vs Bose S1 Pro+
Prices on this page were last checked September 2, 2026 at 4:47 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
Bose S1 Pro+: $699.00 Amazon eBay
Pros: Extremely compact and light with flexible placement options. Full sound with no lack of low-end output, crystal-clear audio quality. Three-channel mixer (2 XLR/quarter-inch combo mic-instrument + 1 line/Bluetooth), each with its own OLED display for quick treble/bass/reverb adjustment. Auto EQ adjusts sound based on orientation. Multiple angled surfaces for various positioning including tilted portrait mode, plus a line out to daisy-chain a second unit. Optional WT-XLR/WT-INST wireless transmitters dock, pair, and charge right in the speaker for a cable-free mic or instrument. Up to 11 hours battery life. Professional build quality. High efficiency drivers reach 2-3x the volume of typical speakers for the same wattage.
Cons: With full range music, it becomes distorted above ⅔ volume, and reviewers describe it as screeching at max volume. Better suited for voice amplification. Not as much deep bass as the Everse 8, midrange sounds reasonably balanced. Treble is pretty boosted. Not stereo. Designed for more loudness than deeper bass. Ports are fully exposed with no water resistance. Charges via a less common three-prong AC cable instead of the two-prong barrel cable most rivals use.
Full Bose S1 Pro+ review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Battery Life | 11 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Version | 5.0 |
| Charging Time | 5 hours |
| Digital Aux Input | No |
| Dimensions | 13.1" x 9.4" x 11" (332.7 x 238.8 x 279.4 mm) |
| Drivers | 1x 6" (152mm) woofer + 3x 2.25" (57mm) tweeters |
| EQ | Yes |
| IP Rating | None |
| Max Volume | 109dB |
| Microphone Input | Yes |
| Omnidirectional | No |
| Output Power | 150W |
| Party Mode | Yes (Bose Party mode) |
| Power Bank | No |
| Power Input | AC Power cord |
| Stereo | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.3 lbs / 6.5 kg |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Precision Drive Audio: Music test for BOSE S1 PRO& PD K8 & JBL EON ONE COMPACT
- Precision Drive Audio: Bose S1 pro VS PD K8 VS JBL EON ONE COMPACT
- HQ AUDIO Exchange: Bose S1 Pro vs. JBL PartyBox 100 Bass Sound Test 😱💥🔥
- briansredd: Electro-Voice Everse 8 VS Bose S1 Pro - Side By Side Shoot-Out (Attempt)
- briansredd: Q&A - Electro-Voice Everse 8 Vs Bose S1 Pro AND (Warning) My Opinion
- True Techy: BOSE S1 Pro vs JBLPartybox ENCORE This Comparison SHOCKED me!!!
- JPW Pro: EV Everse 8 vs JBL EON One Compact Review
- W. Weiss: Part 3 Shootout MACKIE THUMP GO vs BOSE S1 PRO vs JBL EON ONE COMPACT Max Volume Demo A New Winner!
- James from Canada: SOUND TESTS - Soundboks, Minirig 3, dB Technologies, Bose S1 Pro, etc - RAVE TEST
- GYMCADDY: Bose S1 Pro+ Review More from GYMCADDY →
- GYMCADDY: Bose S1 Pro Vs JBL Partybox 120 & Sony XV500
- GYMCADDY: Bose S1 Pro Vs JBL Partybox 320 & Sony XV800
- Aaron Strawn: The Battery Speaker Battle: QSC/EV/Mackie/LD/Bose
- GYMCADDY: Bose S1 Pro Vs JBL Boombox 3 & Sony ULT 7
- Head-to-Head Comparisons
- Bose S1 Pro+ vs Sony SRS-XP700
- Bose S1 Pro+ vs Zealot PT21
- Bose S1 Pro+ vs Sony SRS-XP500
- Bose S1 Pro+ vs Onn XL Wireless Party Speaker
- Bose S1 Pro+ vs Teufel Rockster Air 2
- Bose S1 Pro+ vs Electro-Voice Everse 8
- Bose S1 Pro+ vs Soundcore Rave 3S
- Bose S1 Pro+ vs Teufel Rockster Neo
- See all 33 comparisons
W-King T9 Pro: $171.49 Aliexpress eBay
Pros: 250W peak power, 120dB sound output with dual 6.5” woofers + dual 2.5” tweeters. Removable rechargeable battery allows continuous play via battery swapping. 12 custom bass settings for EQ adjustments by music genre. Music-synchronized LED lights (ambient to high-energy strobes). True Wireless Stereo for stereo pairing. Bluetooth 5.3, great customer service.
Cons: Sounds warm, somewhat gritty, not as detailed as higher ranked speakers
Full W-King T9 Pro review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| 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 |
| Omnidirectional | No |
| Output Power | 250W (peak) |
| Party Mode | No |
| Power Bank | No |
| Stereo | Yes |
| TWS | No |
| USB Playback | Yes |
| Weight | 20 lbs / 9.05 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons