These sit in different size classes, so this is not a straight ranking comparison. The Bose S1 Pro+ ranks #6 of 16 battery-powered PA speakers by sound quality at $699; the W-King T9 Pro ranks #32 of 46 party speakers by sound quality at $171.49.
Why pick the Bose S1 Pro+: Extremely compact and light with flexible placement options, and very loud for its size. It supports AAC Bluetooth, which the W-King T9 Pro lacks. It links with other speakers (Bose Party mode), which the W-King T9 Pro cannot. It has an adjustable EQ, which the W-King T9 Pro lacks. The catch: Leans toward a bright sound signature, and its bass bottoms out as the volume rises, so full range music suffers well before maximum loudness.
Why pick the W-King T9 Pro: A feature-rich rolling party speaker with dual 6.5-inch woofers, removable battery, TWS pairing, bass presets and music-synced lighting. It plays in stereo from a single unit, unlike the Bose S1 Pro+. Watch for: Reviewer comparisons describe the tuning as warm and gritty rather than clean or detailed.
Buy the Bose S1 Pro+ ($699) for a battery-powered PA speaker; the W-King T9 Pro ($171.49) suits a party speaker instead.
Looking for alternatives? See the complete PA & Live Sound rankings and Portable Bluetooth rankings.
Specifications Side By Side
| Bose S1 Pro+ | W-King T9 Pro | |
|---|---|---|
| Price | $699.00 | $171.49 |
| Ranked | #6 of 16 in Battery-Powered PA Speakers | #32 of 46 in Party Size Portable Bluetooth Speakers |
| Passive | No | - |
| 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 |
| Inputs | 2x XLR/6.3mm combo (mic/line/instrument), 6.3mm line, 3.5mm stereo, Bluetooth | - |
| Microphone Input | Yes | - |
| Party Mode | Yes (Bose Party mode) | No |
| Power Bank | No | No |
| Power Input | AC Power cord | USB-C |
| 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 |
| Maximum SPL | 109dB | - |
| Amplifier Power | 150W | 250W (peak) |
| Digital Aux Input | No | No |
| Configuration | Battery-powered 2-way active PA | - |
| Cabinet Material | Polypropylene | - |
| Rigging | 35mm pole mount; multi-position cabinet | - |
| DSP | 3-channel mixer with EQ, reverb and Auto EQ | - |
| Bluetooth | Yes | Yes |
| Guitar Input | Yes | - |
| Bass Extension (-3dB) | 62Hz | - |
| Coverage | 120° H x 50° V | - |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
| Lights | - | Yes |
| Wheels | - | Yes |
Related Speaker Comparisons
How Bose S1 Pro+ compares with other leading options:
- Bose S1 Pro+ vs Electro-Voice Everse 12
- Bose S1 Pro+ vs Electrotec Stage One
- Bose S1 Pro+ vs Electro-Voice Everse 8
- Teufel Rockster Neo vs Bose S1 Pro+
- Teufel Rockster Air 2 vs Bose S1 Pro+
Prices on this page were last checked October 14, 2026 at 2:38 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 $699.00 eBay
Older model: the Bose S1 Pro (ranked lower, rated 4/5). See every Bose S1 Pro generation.
Pros: Extremely compact and light with flexible placement options, and very loud for its size. 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. High efficiency drivers reach 2-3x the volume of typical speakers for the same wattage. Measured bass extension of 62Hz (-3dB).
Cons: Leans toward a bright sound signature, and its bass bottoms out as the volume rises, so full range music suffers well before maximum loudness. Better suited for voice and instrument amplification than for casual music listening. 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 →
| Released | Jul 2023 (3 years ago) |
|---|---|
| Amplifier Power | 150W |
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 55Hz |
| Bass Extension (-3dB) | 62Hz |
| Battery Life | 11 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Version | 5.0 |
| Cabinet Material | Polypropylene |
| Charging Time | 5 hours |
| Configuration | Battery-powered 2-way active PA |
| Coverage | 120° H x 50° V |
| DSP | 3-channel mixer with EQ, reverb and Auto EQ |
| 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 |
| Guitar Input | Yes |
| IP Rating | None |
| Inputs | 2x XLR/6.3mm combo (mic/line/instrument), 6.3mm line, 3.5mm stereo, Bluetooth |
| Maximum SPL | 109dB |
| Microphone Input | Yes |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Passive | No |
| Power Bank | No |
| Power Input | AC Power cord |
| Rigging | 35mm pole mount; multi-position cabinet |
| Stereo | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.3 lbs (6.5 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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