Short answer: the Vanatoo Transparent One Encore Plus. It ranks #20 of 108 powered bookshelf speakers by sound quality, rated 4.3/5, at $699.99; the ADAM Audio A4V ranks #67, rated 3.6/5, and costs $1,079.98, which makes this an easy call rather than a real tradeoff.
The case for the ADAM Audio A4V: A compact studio monitor with onboard DSP, placement controls and room correction support for tricky rooms. The catch: A small average-deviation figure hides a major localized response irregularity: the selected measurement spans 10.8dB from 300Hz to 5kHz, and listening-window narrow-band deviation is 0.547.
The Vanatoo Transparent One Encore Plus is the more accurate choice. Powered speakers with natural, even sound and deep bass for their size, plus lots of digital inputs and a subwoofer output. Its measured preference score, a predictor of how neutral it sounds, is 5.57 against 3.92 for the ADAM Audio A4V. The tradeoff: A mild 4-6kHz edge and a smaller 1-2kHz recession were audible in the review, so its smooth midrange summary does not mean there is nothing to improve with EQ.
Buy the Vanatoo Transparent One Encore Plus. It is rated higher for sound quality than the ADAM Audio A4V and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Powered Home rankings.
A compact studio monitor with onboard DSP, placement controls and room correction support for tricky rooms.
Powered speakers with natural, even sound and deep bass for their size, plus lots of digital inputs and a subwoofer output.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| ADAM Audio A4V | Vanatoo Transparent One Encore Plus | |
|---|---|---|
| Price | $1,079.98 per pair | $699.99 per pair |
| Ranked | #67 of 108 in Medium Size Powered Bookshelf Speakers | #20 of 108 in Medium Size Powered Bookshelf Speakers |
| Enclosure | 2-way active, dual front ports | - |
| Drivers | X-ART folded-ribbon tweeter, 4” MLM woofer | 5.25” aluminum-cone woofer with XBL motor, 5.25” passive radiator (rear), 1” aluminum dome tweeter with waveguide and phase plug |
| Dimensions | 10.6H x 6.2W x 8.7D in | 10” x 6.5” x 8” (254 x 165 x 203 mm) |
| Weight | 12.8 lbs (5.8 kg) each | 10.8 lbs (4.9 kg) (passive unit), 12.1 lbs (5.5 kg) (active unit) |
| Amplifier Power | 130W RMS each | 240W total (100W + 20W Class D amplifiers per enclosure) |
| Inputs | XLR and RCA; Ethernet for control | USB, Optical, Coax, Analog, Bluetooth |
| Spinorama Preference Score | 3.92 | 5.57 |
| Spinorama Preference Score with Perfect Sub | 6.33 | 7.38 |
| XLR Input | Yes | No |
| RCA Input | Yes | No |
| TRS Input | No | No |
| Optical Input | No | Yes |
| Coaxial Input | No | Yes |
| USB Input | No | Yes |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Bluetooth | No | Yes |
| Frequency Response | 58Hz - 41kHz (-3dB) (Manufacturer specified) | 48Hz - 20kHz ±3dB (manufacturer specified, Flat mode) |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX HD |
| Bass Extension (-3dB) | - | 42Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | - | 34Hz (measured, Erin’s Audio Corner) |
| Subwoofer Output | - | Yes |
| Outputs | - | RCA subwoofer |
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