Short answer: the Adam Audio S2V for better sound quality, the Klipsch The Sevens for the lower price. The Adam Audio S2V ranks #37 of 40 powered bookshelf speakers at $3500. The Klipsch The Sevens ranks #38 at $999.99, $2500.01 cheaper.
The case for the Adam Audio S2V: CEA2034 spinorama shows excellent driver blending through an imperceptible crossover between the 7” woofer and AMT tweeter, with distortion measured 70dB down at 1kHz. The tradeoff: An intentional shelving curve creates a dip in the low bass response, roughly 200-500Hz.
What the Klipsch The Sevens gets right: Genuinely good bass - reaches about 40 Hz in-room with a solid, controlled thump and no real strain, backed by measured extension to F3 49Hz/F10 36Hz. The catch: Notably narrower horizontal radiation than its stablemate, the Klipsch The Nines.
Buy the Adam Audio S2V if sound quality matters more than the price. Buy the Klipsch The Sevens if the price matters more than sound quality.
If sound quality matters at all to you, skip both of these and look higher up the 40 powered bookshelf speakers instead.
Specifications Side By Side
| Adam Audio S2V | Klipsch The Sevens | |
|---|---|---|
| Price | $3500 | $999.99 |
| Ranked | #37 of 40 in Large Size Powered Bookshelf Speakers | #38 of 40 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) | 49Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 62Hz (measured, Audio Science Review) | 36Hz (measured, Erin’s Audio Corner) |
| Dimensions | not published by manufacturer | 16.375"H x 8.125"W x 13.1875"D |
| Frequency Response | 35Hz - 50kHz (Manufacturer specified) | - |
| Weight | not published by manufacturer | 22.3 lbs (primary), 19.9 lbs (secondary) |
| Drivers | 7" woofer, S-ART AMT tweeter | 6.5" high-excursion woofer, 1" titanium tweeter on Tractrix horn |
| App | Yes | Yes (treble/mid/bass EQ, subwoofer output, dynamic bass mode) |
| EQ | No | - |
| DSP | Yes | - |
| Output Power | 350W total (300W woofer Class D, 50W tweeter Class A/B) | 200W total (400W peak) |
| Inputs | - | HDMI, Phono, 3.5mm, USB, Optical, Bluetooth |
| Woofer Cabinet | - | ported, rear flared port |
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- Klipsch The Nines vs Adam Audio S2V
- JBL 308P MKII vs Adam Audio S2V
The Two Speakers In Full
Adam Audio S2V: $3500 Bhphotovideo
Pros: CEA2034 spinorama shows excellent driver blending through an imperceptible crossover between the 7” woofer and AMT tweeter, with distortion measured 70dB down at 1kHz. The 350W amplifier was the first the reviewer tested that didn’t run out of power on demand, delivering over 120dB SPL per pair.
Cons: An intentional shelving curve creates a dip in the low bass response, roughly 200-500Hz. The rotary-encoder control interface is non-intuitive, and the companion PC app requires serial-number registration with settings that only take effect after a manual “write” step that takes 5-10 seconds and produces audible ticks and pops. Expensive at $3,500 per pair.
Full Adam Audio S2V review and specifications →
| App | Yes |
|---|---|
| Bass Extension (-10dB) | 62Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) |
| DSP | Yes |
| Dimensions | not published by manufacturer |
| Drivers | 7" woofer, S-ART AMT tweeter |
| EQ | No |
| Frequency Response | 35Hz - 50kHz (Manufacturer specified) |
| Output Power | 350W total (300W woofer Class D, 50W tweeter Class A/B) |
| Weight | not published by manufacturer |
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- Head-to-Head Comparisons
Klipsch The Sevens: $999.99 Amazon
Pros: Genuinely good bass - reaches about 40 Hz in-room with a solid, controlled thump and no real strain, backed by measured extension to F3 49Hz/F10 36Hz. “Wireless” design only requires one power outlet: a single signal cable runs from the primary speaker to the secondary, so only the primary needs a power cable. Extensive inputs - HDMI, phono, 3.5mm, USB, optical, plus Bluetooth. Companion app exposes treble/mid/bass adjustment, subwoofer output, and a dynamic bass mode, giving real tuning flexibility. Good linearity overall once EQ’d - dropping the treble by 1-2dB got the reviewer to a more satisfying tonal balance.
Cons: Notably narrower horizontal radiation than its stablemate, the Klipsch The Nines, meaning less favorable room interaction and a smaller sweet spot - the reviewer suspects this is a meaningful part of why he preferred the Nines. Out of the box (flat EQ), the top end is a bit too lifted/bright. A persistent dip in the upper mid-range (2-4kHz) that the reviewer found dull and lifeless regardless of EQ tweaking to the treble control - he felt this region specifically needed better tuning from Klipsch, not just a treble slider adjustment. Response isn’t quite flat even after adjustment - there’s peaking up around 8kHz that reinforces a scooped-sounding in-room balance at the listening seat.
Full Klipsch The Sevens review and specifications →
| App | Yes (treble/mid/bass EQ, subwoofer output, dynamic bass mode) |
|---|---|
| Bass Extension (-10dB) | 36Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 49Hz (measured, Erin's Audio Corner) |
| Dimensions | 16.375"H x 8.125"W x 13.1875"D |
| Drivers | 6.5" high-excursion woofer, 1" titanium tweeter on Tractrix horn |
| Inputs | HDMI, Phono, 3.5mm, USB, Optical, Bluetooth |
| Output Power | 200W total (400W peak) |
| Weight | 22.3 lbs (primary), 19.9 lbs (secondary) |
| Woofer Cabinet | ported, rear flared port |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Klipsch The Sevens vs Edifier S3000Pro
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- Klipsch The Sevens vs Kali Audio LP-6
- Klipsch The Sevens vs Klipsch The Nines
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