Kii Seven vs ADAM Audio S3H

Short answer: the Kii Seven. It ranks #23 of 118 powered bookshelf speakers by sound quality, rated 4.6/5, at $7,790; the ADAM Audio S3H ranks #32, rated 4.5/5, and costs $8,199.98, so there is not much of a tradeoff to weigh.

What the Kii Seven does well: A smaller sibling of the Kii THREE that uses the same active wave focusing idea: side and rear woofers are driven by DSP to cancel sound going backward, giving a cardioid pattern so nearby walls color the bass far less than with a conventional box. The tradeoff: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Kii THREE, which shares its cardioid design.

The case for the ADAM Audio S3H: A horizontal three-way S Series monitor: two 7” HexaCone woofers either side of a 4” dome/cone midrange and the S-ART folded-ribbon tweeter, driven by 1,350W. The tradeoff: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured two-way ADAM Audio S2V.

Buy the Kii Seven. It is rated higher for sound quality than the ADAM Audio S3H and costs less, so it is the default pick unless a specific strength of the other one matters more to you.

About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: Kii Seven 4.3 to 4.9; ADAM Audio S3H 4.2 to 4.8). Treat this verdict as provisional.

Looking for alternatives? See the complete Powered Home rankings.

Specifications Side By Side

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Prices on this page were last checked October 11, 2026 at 4:59 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

Kii Seven: $7,790 per pair Estimated Vintage King eBay

Same family: the Kii THREE (larger bookshelf, ranked higher, rated 4.9/5).

Pros: A smaller sibling of the Kii THREE that uses the same active wave focusing idea: side and rear woofers are driven by DSP to cancel sound going backward, giving a cardioid pattern so nearby walls color the bass far less than with a conventional box. Two 6.5” woofers, a 5” midrange and a waveguided 1” tweeter get 600W of amplification per speaker, and Kii specifies ±0.5dB from 100Hz to 10kHz with bass to 40Hz (-3dB). It accepts analog XLR, TRS and AES digital, and adds Wi-Fi streaming, Bluetooth and Dante, so it works as a studio monitor or a complete wireless hi-fi system.

Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Kii THREE, which shares its cardioid design. Bass extension stops around 40Hz, short of the larger Kii THREE, and the optional Kii Control remote costs extra.

Full Kii Seven review and specifications →

Released	2024 (2 years ago)
AES Input	Yes
Amplifier Power	600W per speaker
Aux Input	No
Bluetooth	Yes
Coaxial Input	No
DSP	Yes (cardioid active wave focusing, room and boundary EQ)
Dimensions	12.2” (310 mm) H x 203mm W x 310mm D
Drivers	2x 6.5” woofers, 5” midrange, 1” waveguided tweeter
Frequency Response	40Hz (-3dB); ±0.5dB 100Hz - 10kHz (manufacturer specified)
HDMI Input	No
Inputs	Analog XLR, TRS, AES/EBU digital, Wi-Fi, Bluetooth, Dante
Optical Input	No
RCA Input	No
TRS Input	Yes
USB Input	No
Weight	30.9 lbs (14 kg) each
Wi-Fi	Yes
XLR Input	Yes

• Links
  • Official Kii SEVEN Page
• 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
  • Kii Seven vs PSI Audio A21-M
  • Kii Seven vs ADAM Audio S3V
  • Kii Seven vs Buchardt A10

ADAM Audio S3H: $8,199.98 per pair Estimated B&H Photo Video eBay

Same family: the ADAM Audio S2V (smaller bookshelf, ranked higher, rated 4.6/5), the ADAM Audio S3V (smaller bookshelf, ranked higher, estimated 4.5/5), the ADAM Audio S5V (larger bookshelf, ranked lower, estimated 4.4/5) and the ADAM Audio S5H (larger bookshelf, ranked lower, estimated 4.4/5).

Pros: A horizontal three-way S Series monitor: two 7” HexaCone woofers either side of a 4” dome/cone midrange and the S-ART folded-ribbon tweeter, driven by 1,350W. ADAM specifies 30Hz to 50kHz and 126dB peak output, and the horizontal layout suits soffit mounting or sitting under a large screen. Like the ADAM Audio S2V it uses a handmade S-ART folded-ribbon tweeter in an HPS waveguide and DSP with selectable voicings, a 6-band parametric EQ and delay for fitting it to the room, with analog XLR and AES digital inputs.

Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured two-way ADAM Audio S2V. Side-by-side woofers can narrow horizontal dispersion through the crossover region compared with a vertical design, and it is a large, heavy cabinet for big control rooms.

Full ADAM Audio S3H review and specifications →

Released	2017 (9 years ago)
AES Input	Yes
Amplifier Power	1,350W total
Aux Input	No
Bluetooth	No
Coaxial Input	No
DSP	Yes (selectable voicings, 6-band parametric EQ, delay)
Dimensions	11”H x 23”W x 15”D (280 x 585 x 380 mm)
Drivers	2x 7” HexaCone woofers, 4” DCH dome/cone midrange, S-ART folded-ribbon tweeter in HPS waveguide
Frequency Response	30Hz - 50kHz (manufacturer specified)
HDMI Input	No
Inputs	XLR analog, AES/EBU digital
Maximum SPL	126dB peak @ 1m (manufacturer specified)
Optical Input	No
RCA Input	No
TRS Input	No
USB Input	No
Weight	58.6 lbs (26.6 kg)
XLR Input	Yes

• Links
  • Official ADAM Audio S3H Product Page
• 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
  • ADAM Audio S3H vs ADAM Audio S3V
  • ADAM Audio S3H vs PSI Audio A21-M
  • ADAM Audio S3H vs Devialet Phantom Ultimate 108dB
  • ADAM Audio S3H vs KEF LS LUXE