Short answer: the Vanatoo Transparent Zero Plus. It ranks #45 of 100 powered bookshelf speakers by sound quality (rated 3.9/5) at $499.99 and is still sold new; the JBL One Series 104 ranks #93 (rated 2.8/5) and is discontinued, so it is only an option used.
The Vanatoo Transparent Zero Plus is the better-sounding pick. Erin’s data shows a small 1.7dB span from 300Hz to 5kHz and a broadly level midrange trend. Watch for: The measured -3dB point is around 95Hz, with a much lower F10 in the original review; this is not flat bass to the low-50Hz region.
The JBL One Series 104 is the deeper-bass pick. ASR’s powered-system measurement gives -3dB bass around 72Hz, and the compact coaxial layout is convenient for a small desk. Its bass reaches about 45Hz before falling 3dB, against 92Hz for the Vanatoo Transparent Zero Plus. The tradeoff: Even with the active system measured properly, scores are only 1.36 standalone and 4.08 with an ideal subwoofer.
Buy the Vanatoo Transparent Zero Plus. It is rated higher for sound quality, and the JBL One Series 104 is discontinued, so it is only available used.
Looking for alternatives? See the complete Powered Home rankings.
Specifications Side By Side
| Vanatoo Transparent Zero Plus | JBL One Series 104 | |
|---|---|---|
| Price | $499.99 per pair | $129 per pair Discontinued |
| Ranked | #45 of 100 in Medium Size Powered Bookshelf Speakers | #93 of 100 in Medium Size Powered Bookshelf Speakers |
| Drivers | 4” aluminum cone woofer, 4” long-throw passive radiator, 1” soft dome tweeter | 4.5” coaxial low-frequency driver, 0.75” soft dome tweeter |
| Amplifier Power | 120W total (Class D) | 60W total Class D (30W per speaker) |
| Inputs | Bluetooth (aptX HD), USB (24-bit/96kHz), Toslink Optical (24-bit/96kHz), 3.5mm Analog | 1/4” TRS, RCA, 3.5mm Aux |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD | - |
| Dimensions | 8.5”H x 5.5”W x 6”D | 9.7H x 6W x 4.9D in (per manufacturer, 104-BT) |
| Weight | 7.1 lbs (3.2 kg) each | 4.5 lbs (2.06 kg) (master), 3.8 lbs (1.73 kg) (slave) |
| Bass Extension (-3dB) | 92Hz (measured, Erin’s Audio Corner) | 45Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review) |
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) | 35Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review) |
| Sensitivity | 88.5dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| DSP | Yes (8th-order Butterworth high-pass at 58Hz) | Yes |
| Spinorama Preference Score | 4.07 | - |
| Spinorama Preference Score with Perfect Sub | 6.73 | - |
| Subwoofer Output | Yes | - |
| Outputs | RCA subwoofer | - |
| XLR Input | No | No |
| RCA Input | No | Yes |
| TRS Input | No | Yes |
| Optical Input | Yes | No |
| Coaxial Input | No | No |
| USB Input | Yes | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | Yes | Yes |
| Bluetooth | Yes | No |
| Frequency Response | 56Hz - 20kHz (+/-3dB) (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| App | - | No |
| EQ | - | Yes (fixed, amplifier-applied) |
Related Speaker Comparisons
How Vanatoo Transparent Zero Plus compares with other leading options:
- Genelec 8331A vs Vanatoo Transparent Zero Plus
- Neumann KH120 MKII vs Vanatoo Transparent Zero Plus
- Genelec 8030C vs Vanatoo Transparent Zero Plus
- Neumann KH80 DSP vs Vanatoo Transparent Zero Plus
- Vanatoo Transparent Zero Plus vs Dynaudio LYD 5
Prices on this page were last checked October 7, 2026 at 9:25 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
Vanatoo Transparent Zero Plus: $499.99 per pair Amazon eBay
Older model: the Vanatoo Transparent Zero (ranked lower, rated 3.7/5).
Pros: Erin’s data shows a small 1.7dB span from 300Hz to 5kHz and a broadly level midrange trend. Scores of 4.07 standalone and 6.73 with an ideal subwoofer support it as a useful compact desktop option. Flexible cabinet orientation, multiple inputs and automatic subwoofer crossover behavior help with setup. Measured bass extension of 92Hz (-3dB), with a measured sensitivity of 88.5dB.
Cons: The measured -3dB point is around 95Hz, with a much lower F10 in the original review; this is not flat bass to the low-50Hz region. Vertical listening angle changes the upper-midrange response. The review finds cleaner results at moderate levels than near maximum output, where multitone distortion increases. A subwoofer is particularly valuable here. An 8th-order high-pass filter at 58Hz sharply cuts bass below that point, so kick drum fundamentals need a subwoofer.
Full Vanatoo Transparent Zero Plus review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 120W total (Class D) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 92Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| Coaxial Input | No |
| DSP | Yes (8th-order Butterworth high-pass at 58Hz) |
| Dimensions | 8.5”H x 5.5”W x 6”D |
| Drivers | 4” aluminum cone woofer, 4” long-throw passive radiator, 1” soft dome tweeter |
| Frequency Response | 56Hz - 20kHz (+/-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | Bluetooth (aptX HD), USB (24-bit/96kHz), Toslink Optical (24-bit/96kHz), 3.5mm Analog |
| Optical Input | Yes |
| Outputs | RCA subwoofer |
| RCA Input | No |
| Sensitivity | 88.5dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.07 |
| Spinorama Preference Score with Perfect Sub | 6.73 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | Yes |
| Weight | 7.1 lbs (3.2 kg) each |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Vanatoo Transparent Zero Plus Review. More from Erin’s Audio Corner →
- Erin’s Audio Corner Website: Vanatoo Transparent Zero Plus
- Erin’s Audio Corner Measurements (spinorama.org)
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JBL One Series 104: $129 per pair Discontinued eBay
Pros: ASR’s powered-system measurement gives -3dB bass around 72Hz, and the compact coaxial layout is convenient for a small desk. Its internal equalization is part of the working speaker and should be included when assessing it, rather than judging the passive drivers with that correction bypassed. Measured bass extension of 45Hz (-3dB).
Cons: Even with the active system measured properly, scores are only 1.36 standalone and 4.08 with an ideal subwoofer. The 4.9dB midrange span and a high-frequency cancellation around 7.4kHz indicate significant unevenness; the review also found some vocals bright and irritating. These are results for the original 104, not a verification of the later 104-BT. Discontinued.
Full JBL One Series 104 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 60W total Class D (30W per speaker) |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 35Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review) |
| Bass Extension (-3dB) | 45Hz with the amplifier’s DSP bass boost active (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | Yes |
| Dimensions | 9.7H x 6W x 4.9D in (per manufacturer, 104-BT) |
| Drivers | 4.5” coaxial low-frequency driver, 0.75” soft dome tweeter |
| EQ | Yes (fixed, amplifier-applied) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| HDMI Input | No |
| Inputs | 1/4” TRS, RCA, 3.5mm Aux |
| Optical Input | No |
| RCA Input | Yes |
| TRS Input | Yes |
| USB Input | No |
| Weight | 4.5 lbs (2.06 kg) (master), 3.8 lbs (1.73 kg) (slave) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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