Short answer: the W-King T9 for better sound quality, the Harman Kardon Onyx Studio 4 for the lower price. The W-King T9 ranks #38 of 77 large speakers at $130. The Harman Kardon Onyx Studio 4 ranks #47 at $100, $30 cheaper.
What the W-King T9 offers: 80W output power, 106dB max volume, 24-hour battery life, power bank function, Bluetooth 5.3 with 100ft range, TWS stereo pairing with wireless microphone, dual subwoofers, RGB lighting, MicroSD and AUX support, USB-C charging, karaoke capability Watch for: Peaks in the upper mids which makes it sound a bit harsh.
What the Harman Kardon Onyx Studio 4 offers: Balanced sound quality with deep resonant bass and crisp treble, large dynamic range. Multi-host Bluetooth connectivity for 2 phones, daisy chaining up to 100 speakers. Elegant modern design with smooth curves and premium materials. Watch for: 8 hour battery at medium volume. Not at loud as others. Not as deep of bass as the newer Onyx. External AC power brick for charging.
Buy the W-King T9 when sound quality outweighs the price for you, and the Harman Kardon Onyx Studio 4 when the price outweighs sound quality instead.
If battery life is a priority, the W-King T9 is rated for 24 hours versus 8 hours for the Harman Kardon Onyx Studio 4.
Specifications Side By Side
| W-King T9 | Harman Kardon Onyx Studio 4 | |
|---|---|---|
| Price | $130 | $100 Discontinued |
| Ranked | #38 of 77 in Large Size Portable Bluetooth Speakers | #47 of 77 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 47Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| IP Rating | None | None |
| Max Volume | 106dB | - |
| MicroSD Playback | Yes | - |
| Power Bank | Yes (USB-A) | No |
| TWS | Yes | Yes |
| Weight | 10.1 lbs / 4.6 kg | 4.5 lbs / 2.06 kg |
| App | No | Yes (HK Connect) |
| Bluetooth Codecs | SBC | SBC |
| Built in Microphone | Yes | Yes |
| EQ | No | No |
| Party Mode | No | Yes (Connect+ up to 100 speakers) |
| Power Input | USB-C | DC Barrel Connector (19V/2.1A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 5.3 | 4.2 |
| Output Power | 80W | 60W |
| Dimensions | 11.8" x 5.9" x 4.7" (300 x 150 x 120 mm) | 11.4" x 11.4" x 5.1" (290 x 290 x 130 mm) |
| Drivers | 2x 4.04" subwoofers + drivers | 2x 75mm woofers, 2x 20mm tweeters |
| Digital Aux Input | No | No |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
| Discontinued | - | Yes |
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- Tribit Stormbox Lava vs W-King T9
- Harman Kardon Citation 200 vs Harman Kardon Onyx Studio 4
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
W-King T9: $130 Amazon Aliexpress eBay
Pros: 80W output power, 106dB max volume, 24-hour battery life, power bank function, Bluetooth 5.3 with 100ft range, TWS stereo pairing with wireless microphone, dual subwoofers, RGB lighting, MicroSD and AUX support, USB-C charging, karaoke capability
Cons: Peaks in the upper mids which makes it sound a bit harsh.
Full W-King T9 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.8" x 5.9" x 4.7" (300 x 150 x 120 mm) |
| Drivers | 2x 4.04" subwoofers + drivers |
| EQ | No |
| IP Rating | None |
| Max Volume | 106dB |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 80W |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 10.1 lbs / 4.6 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: W-King t9 party speaker vs Soundcore Rave Neo and Trance (Rave Mega) 🥳 More from alanrossreviews →
- Alan Ross Reviews: W-King T9 or Soundcore Motion Boom - King vs World Champion! 👌
- Jay’s Straight Up Reviews & More: W-King T9 🆚 ONN Large Party Speaker -By Request for Big Tee. Can the Smaller T9 Hang With The ONN? More from JaysStraightUpReviews →
- Reddit Search for W-King T9 Review
- Head-to-Head Comparisons
Harman Kardon Onyx Studio 4: $100 Discontinued eBay
Pros: Balanced sound quality with deep resonant bass and crisp treble, large dynamic range. Multi-host Bluetooth connectivity for 2 phones, daisy chaining up to 100 speakers. Elegant modern design with smooth curves and premium materials.
Cons: 8 hour battery at medium volume. Not at loud as others. Not as deep of bass as the newer Onyx. External AC power brick for charging. Discontinued.
Full Harman Kardon Onyx Studio 4 review and specifications →
| App | Yes (HK Connect) |
|---|---|
| Aux Input | Yes |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.4" x 11.4" x 5.1" (290 x 290 x 130 mm) |
| Discontinued | Yes |
| Drivers | 2x 75mm woofers, 2x 20mm tweeters |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | None |
| Omnidirectional | No |
| Output Power | 60W |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2.1A) |
| Stereo | Yes |
| TWS | Yes |
| Weight | 4.5 lbs / 2.06 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Geri’s Collection: Harman Kardon Onyx 7 vs Onyx 4
- OCM Reviews: Onyx Studio 4 Vs Onyx Studio 5 - Sound Quality Comparison - Bluetooth Speaker
- Alan Ross Reviews: Ultimate HK Onyx Studio speaker review and comparison! 8 speakers! More from alanrossreviews →
- Reddit Search for Harman Kardon Onyx Studio 4 Review
- Head-to-Head Comparisons
- Harman Kardon Onyx Studio 4 vs Zealot S97
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- Harman Kardon Onyx Studio 4 vs Tronsmart Halo 100
- Harman Kardon Onyx Studio 4 vs W-King D8
- Harman Kardon Onyx Studio 4 vs Sony SRS-XB43
- Harman Kardon Onyx Studio 4 vs JBL Xtreme
- Harman Kardon Onyx Studio 4 vs Doss Soundbox XL
- Harman Kardon Onyx Studio 4 vs Sony ULT Field 5
- See all 38 comparisons