Short answer: the Teufel Boomster NG (2017) for neutrality, the Harman Kardon Onyx Studio 5 for design. The Boomster NG sounds pretty neutral, but its bass is not as deep as others in the category. The Onyx Studio 5 brings the elegant circular design and carrying handle, though its warm sound has boosted bass.
Buy the Harman Kardon Onyx Studio 5 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Tribit Stormbox Blast instead.
If battery life is a priority, the Teufel Boomster NG (2017) is rated for 18 hours versus 8 hours for the Harman Kardon Onyx Studio 5.
If water resistance matters to you, the Harman Kardon Onyx Studio 5 at IPX7 (brief submersion) holds up far better than the Teufel Boomster NG (2017) at no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Harman Kardon Onyx Studio 5 | Teufel Boomster NG (2017) | |
|---|---|---|
| Price | $499.99 Discontinued | €99 Discontinued |
| Ranked | #24 of 91 in Boombox Size Portable Bluetooth Speakers | #53 of 91 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 8 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| IP Rating | IPX7 | None |
| Party Mode | Yes (Wireless Dual Sound) | No |
| Power Input | DC Barrel Connector (19V/2.1A) | USB-C |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| TWS | Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/) | No |
| Weight | 6.6 lbs (3 kg) | 7.5 lbs (3.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| Power Bank | No | Yes (USB-A) |
| USB Playback | No | No |
| Built-in Microphone | Yes | No |
| Amplifier Power | 50W | 38W RMS |
| Dimensions | 11.3” x 11.3” (285.8 x 285.8 mm) | 5.7” x 14.6” x 7.1” (145 x 370 x 180 mm) |
| Drivers | 120mm woofer + 25mm tweeter + 2x passive radiators | 1x 90mm woofer + 2x 65mm midrange drivers + 2x 20mm tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 4.2 | 4.0 |
| Strap | No | - |
| Bass Extension (-10dB) | - | 47Hz |
| Removable Battery | - | Yes |
Related Speaker Comparisons
How Harman Kardon Onyx Studio 5 compares with other leading options:
- Tribit Stormbox Blast vs Harman Kardon Onyx Studio 5
- Harman Kardon Go + Play 3 vs Harman Kardon Onyx Studio 5
- JBL Partybox Encore 2 vs Harman Kardon Onyx Studio 5
- JBL PartyBox On-The-Go 2 Plus vs Harman Kardon Onyx Studio 5
- JBL Partybox Encore Essential 2 vs Harman Kardon Onyx Studio 5
Prices on this page were last checked October 4, 2026 at 9:58 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
Harman Kardon Onyx Studio 5: $499.99 Discontinued Amazon eBay
Newer model: the Harman Kardon Onyx Studio 9, ranked higher, rated 4.1/5.
Pros: The iconic circular cabinet and integrated handle make it an attractive room-to-room speaker. Reviews praise its generous bass, balanced mids and smooth top end at moderate levels, giving it a warm, relaxed presentation for casual indoor music.
Cons: The large bass boost can mask lower-mid detail and make dense mixes muddy. Battery life is only around eight hours at moderate volume, it is not especially loud, and it has no water resistance for outdoor use. Discontinued.
Full Harman Kardon Onyx Studio 5 review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.3” x 11.3” (285.8 x 285.8 mm) |
| Drivers | 120mm woofer + 25mm tweeter + 2x passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | Yes (Wireless Dual Sound) |
| Power Bank | No |
| Power Input | DC Barrel Connector (19V/2.1A) |
| Stereo | Partially (1 woofer) |
| Strap | No |
| TWS | Yes (see https://www.reddit.com/r/Bluetooth_Speakers/comments/w339x5/how_to_harman_kardon_onyx_studio_5_6_dual_sound/) |
| USB Playback | No |
| Weight | 6.6 lbs (3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Harman Kardon Onyx Studio 5 vs Harman Kardon Go + Play 2
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- Harman Kardon Onyx Studio 5 vs JBL Boombox 3
- Harman Kardon Onyx Studio 5 vs JBL Boombox 4
- Harman Kardon Onyx Studio 5 vs Zealot S89
- Harman Kardon Onyx Studio 5 vs Zealot ZE21
- Harman Kardon Onyx Studio 5 vs Tribit Stormbox Blast 2
- See all 61 comparisons
Teufel Boomster NG (2017): €99 Discontinued eBay
Newer model: the Teufel Boomster 4, ranked higher, rated 3.4/5.
Pros: Teufel Boomster NG (2017) uses 1x 90mm woofer + 2x 65mm midrange drivers + 2x 20mm tweeters. Its 3.4 kg, claimed 18 hours (Manufacturer specified) battery life and stereo playback make it a practical option for its intended room or portable use. The battery is removable. Measured bass extension of 47Hz (-10dB).
Cons: Bass is limited by its 47Hz specification. There is no companion app. No EQ adjustment. The bass port can make noise, and there is no water rating. Discontinued.
Full Teufel Boomster NG (2017) review and specifications →
| Amplifier Power | 38W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 5.7” x 14.6” x 7.1” (145 x 370 x 180 mm) |
| Drivers | 1x 90mm woofer + 2x 65mm midrange drivers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | None |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 7.5 lbs (3.4 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
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