Short answer: the Kali Audio IN-5. It ranks #21 of 68 powered bookshelf speakers by sound quality, rated 4.2/5, at $698; the Audioengine HD6 ranks #54, rated 3.3/5, and costs $817.44, so there is not much of a tradeoff to weigh.
The case for the Kali Audio IN-5: The active three-way layout separates bass duties from the coaxial mid/tweeter, giving flexible listening geometry. The catch: Local listening-window irregularities remain despite the small overall midrange span.
The case for the Audioengine HD6: Analog and optical inputs, RCA output and built-in amplification provide a convenient self-contained stereo setup. The catch: Listening impressions describe bass and treble emphasis with a recessed midrange, which may suit casual listening better than neutral monitoring.
Buy the Kali Audio IN-5. It is rated higher for sound quality than the Audioengine HD6 and costs less, which makes it the one to get unless you need something the other one does better.
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Specifications Side By Side
| Kali Audio IN-5 | Audioengine HD6 | |
|---|---|---|
| Price | $698 per pair | $817.44 per pair |
| Ranked | #21 of 68 in Medium Size Powered Bookshelf Speakers | #54 of 68 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | Approximately 45Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-10dB) | 40.0Hz (measured, Erin’s Audio Corner) | - |
| Drivers | 1” tweeter coaxial with 4” midrange; 5” woofer | 5.5” (140mm) woofer |
| Amplifier Power | 80W LF + 40W mid + 40W HF | 50w RMS Per Speaker |
| Woofer Cabinet | ported, front | - |
| Spinorama Preference Score | 5.12 | - |
| Spinorama Preference Score with Perfect Sub | 7.13 | - |
| Inputs | XLR, TRS, RCA | Bluetooth, Aux, RCA Input, Digital Optical |
| XLR Input | Yes | No |
| RCA Input | Yes | Yes |
| TRS Input | Yes | No |
| Optical Input | No | Yes |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | Yes |
| Bluetooth | No | Yes, 5.0 |
| Dimensions | 15” x 8.1” x 11.1” (382 x 206 x 282 mm) (H x W x D) | 11.7”H x 7.2”W x 10”D (298.4 x 184.1 x 254 mm) |
| Frequency Response | 39Hz - 25kHz (-10dB) (Manufacturer specified) | 45Hz-40kHz (-3dB) (Manufacturer specified) |
| Weight | 18.6 lbs (8.43 kg) each | 17.4 lbs (7.9 kg) |
| Outputs | - | RCA variable output (subwoofer) |
| App | - | No |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX HD |
| EQ | - | No |
| Subwoofer Output | - | Yes |
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Prices on this page were last checked September 30, 2026 at 2:57 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
Kali Audio IN-5: $698 per pair Amazon eBay
Pros: The active three-way layout separates bass duties from the coaxial mid/tweeter, giving flexible listening geometry. Erin’s data shows a 1.8dB midrange response span and -3dB bass around 45Hz, with scores of 5.12 standalone and 7.13 with an ideal subwoofer. Placement switches and balanced inputs help integrate it into a studio; moderate-level distortion is well controlled in the existing review. Measured bass extension of 45Hz (-3dB).
Cons: Local listening-window irregularities remain despite the small overall midrange span. The review reports midrange distortion rising above 3% at 96dB and a brighter perceived balance at closer distances. Limiting makes it unsuitable for demanding farfield playback. Coaxial construction improves geometry but does not remove response errors or guarantee unlimited output.
Full Kali Audio IN-5 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 80W LF + 40W mid + 40W HF |
| Aux Input | No |
| Bass Extension (-10dB) | 40.0Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | Approximately 45Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 15” x 8.1” x 11.1” (382 x 206 x 282 mm) (H x W x D) |
| Drivers | 1” tweeter coaxial with 4” midrange; 5” woofer |
| Frequency Response | 39Hz - 25kHz (-10dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, TRS, RCA |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 5.12 |
| Spinorama Preference Score with Perfect Sub | 7.13 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 18.6 lbs (8.43 kg) each |
| Woofer Cabinet | ported, front |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
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Audioengine HD6: $817.44 per pair Amazon eBay
Pros: Analog and optical inputs, RCA output and built-in amplification provide a convenient self-contained stereo setup. The cabinet and driver size can be practical for general music listening without assembling a separate amplifier system.
Cons: Listening impressions describe bass and treble emphasis with a recessed midrange, which may suit casual listening better than neutral monitoring.
Full Audioengine HD6 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 50w RMS Per Speaker |
| App | No |
| Aux Input | Yes |
| Bluetooth | Yes, 5.0 |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| Coaxial Input | 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) |
| HDMI Input | No |
| Inputs | Bluetooth, Aux, RCA Input, Digital Optical |
| Optical Input | Yes |
| Outputs | RCA variable output (subwoofer) |
| RCA Input | Yes |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 17.4 lbs (7.9 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons