Short answer: the Vanatoo Transparent Zero Plus. It ranks #13 of 36 powered bookshelf speakers by sound quality at $499.99; the Audioengine HD6 ranks #25 and costs $817.44, so there is not much of a tradeoff to weigh.
What the Vanatoo Transparent Zero Plus offers: Genuinely neutral tonal balance in a small desktop-class powered speaker - a rarity in this size and price range, where the reviewer says most competitors have a scooped mid-range, one-note bass, and piercing V-shaped highs. Watch for: An 8th-order Butterworth high-pass at 58Hz sharply limits bass below that point - F3 measures 92Hz and F10 53Hz, so kick drum fundamentals and true low end need a subwoofer.
What the Audioengine HD6 offers: Rated 4.1 out of 5 in its category. Watch for: A bit of an accentuated treble and bass.
Buy the Vanatoo Transparent Zero Plus. It ranks higher for sound quality than the Audioengine HD6 and costs less, so there is no real case for the other one.
Specifications Side By Side
| Vanatoo Transparent Zero Plus | Audioengine HD6 | |
|---|---|---|
| Price | $499.99 | $817.44 |
| Ranked | #13 of 36 in Medium Size Powered Bookshelf Speakers | #25 of 36 in Medium Size Powered Bookshelf Speakers |
| Drivers | 4" aluminum cone woofer, 4" long-throw passive radiator, 1" soft dome tweeter | 5.5" (140mm) woofer |
| Output Power | 120W total (Class D) | 50w RMS Per Speaker |
| Inputs | Bluetooth (aptX HD), USB (24-bit/96kHz), Toslink Optical (24-bit/96kHz), 3.5mm Analog | Bluetooth, Aux, RCA Input, Digital Optical |
| Dimensions | 8.5"H x 5.5"W x 6"D | 11.7"H x 7.2"W x 10"D (298.4 x 184.1 x 254 mm) |
| Weight | 7 lbs each | 17.4 lbs / 7.9 kg |
| Bass Extension (-3dB) | 92Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) | - |
| Sensitivity | 88.5dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| DSP | Yes (8th-order Butterworth high-pass at 58Hz) | - |
| Frequency Response | - | 45Hz-40KHz (-3dB) (Manufacturer specified) |
| Outputs | - | RCA Output |
| App | - | No |
| Bluetooth | - | No |
| EQ | - | No |
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- Kali Audio IN-5 vs Klipsch The Fives
- Vanatoo Transparent Zero Plus vs Klipsch The Fives
- Kali Audio IN-5 vs Audioengine HD6
The Two Speakers In Full
Vanatoo Transparent Zero Plus: $499.99 Amazon
Pros: Genuinely neutral tonal balance in a small desktop-class powered speaker - a rarity in this size and price range, where the reviewer says most competitors have a scooped mid-range, one-note bass, and piercing V-shaped highs. Flexible mounting: flip the cabinet orientation to angle the tweeter up for flat-desktop placement or level for stand-mount ear height. Subwoofer output with auto-sense, so it engages automatically when a sub is connected. Wide input selection - Bluetooth aptX HD, USB (24-bit/96kHz), Toslink, and 3.5mm analog. Distortion stays reasonable (below 3%) up to about 88dB, and multitone distortion at max output (96dB) is the only real weak point.
Cons: An 8th-order Butterworth high-pass at 58Hz sharply limits bass below that point - F3 measures 92Hz and F10 53Hz, so kick drum fundamentals and true low end need a subwoofer. Very sensitive to ear height relative to the tweeter: sitting even slightly above the tweeter axis scoops out the 2-4kHz upper mid-range. Multitone distortion at maximum output (96dB) is high enough to add noticeable vocal graininess - stick closer to 88dB for clean output. The reviewer’s only real gripe is wishing it extended lower, which he acknowledges is an unreasonable ask for a speaker this size.
Full Vanatoo Transparent Zero Plus review and specifications →
| Bass Extension (-10dB) | 53Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 92Hz (measured, Erin's Audio Corner) |
| 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 |
| Inputs | Bluetooth (aptX HD), USB (24-bit/96kHz), Toslink Optical (24-bit/96kHz), 3.5mm Analog |
| Output Power | 120W total (Class D) |
| Sensitivity | 88.5dB (measured at 0.3V/1m, Erin's Audio Corner) |
| Weight | 7 lbs each |
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Audioengine HD6: $817.44 Amazon
Cons: A bit of an accentuated treble and bass. Slight dip in the midrange.
Full Audioengine HD6 review and specifications →
| App | No |
|---|---|
| Bluetooth | No |
| Dimensions | 11.7"H x 7.2"W x 10"D (298.4 x 184.1 x 254 mm) |
| Drivers | 5.5" (140mm) woofer |
| EQ | No |
| Frequency Response | 45Hz-40KHz (-3dB) (Manufacturer specified) |
| Inputs | Bluetooth, Aux, RCA Input, Digital Optical |
| Output Power | 50w RMS Per Speaker |
| Outputs | RCA Output |
| Weight | 17.4 lbs / 7.9 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons