Short answer: the Genelec 8351B for better sound quality, the Klipsch The Sevens for the lower price. The Genelec 8351B ranks #6 of 66 powered bookshelf speakers at $9150. The Klipsch The Sevens ranks #58 at $999.99, $8150.01 cheaper.
What the Klipsch The Sevens offers: 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. Watch for: 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.
What the Genelec 8351B offers: CEA2034 spinorama shows exceptionally flat response both on- and off-axis. Predicted in-room response is “as good as it gets” - should sound very neutral in nearly any room. Horizontal beamwidth of about ±50 degrees is described by the reviewer as exceptionally smooth, a model example of well-executed directivity control. Vertical directivity is nearly as good as horizontal, a benefit of its coaxial driver design that’s rare among non-coaxial monitors. Distortion at 86dB SPL/1m is remarkably low - the reviewer says it’s “better than many headphones.” Watch for: Deep bass distortion rises substantially at higher output (96dB SPL/1m) - the reviewer notes “deep bass suffers” below about 100Hz. A distortion spike also appears near 8-10kHz at that same higher output level. Cumulative spectral decay (waterfall) measurements show resonances around 1-2kHz. Very expensive.
Buy the Klipsch The Sevens if the price matters more than sound quality. Buy the Genelec 8351B if sound quality matters more than the price.
If sound quality matters at all to you, skip the Klipsch The Sevens. It ranks near the bottom of the 66 powered bookshelf speakers, so look higher up the list instead.
Specifications Side By Side
| Klipsch The Sevens | Genelec 8351B | |
|---|---|---|
| Price | $999.99 | $9150 |
| Ranked | #58 of 66 in Large Size Powered Bookshelf Speakers | #6 of 66 in Large Size Powered Bookshelf Speakers |
| Drivers | 6.5" high-excursion woofer, 1" titanium tweeter on Tractrix horn | 8.6" woofer, 5" coaxial with tweeter midrange, 0.75" (19mm) coaxial tweeter |
| Output Power | 200W total (400W peak) | 550w Per Speaker |
| Inputs | HDMI, Phono, 3.5mm, USB, Optical, Bluetooth | XLR |
| Dimensions | 16.375"H x 8.125"W x 13.1875"D | 17"H x 11.3"W x 10.9"D (431.8 x 287 x 276.9 mm) |
| Weight | 22.3 lbs (primary), 19.9 lbs (secondary) | 31.1 lbs / 14.1 kg each |
| Bass Extension (-3dB) | 49Hz (measured, Erin’s Audio Corner) | 33Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 36Hz (measured, Erin’s Audio Corner) | 28Hz (measured, Audio Science Review) |
| App | Yes (treble/mid/bass EQ, subwoofer output, dynamic bass mode) | Yes (GLM) |
| Woofer Cabinet | ported, rear flared port | - |
| Bluetooth | - | No |
| DSP | - | Yes |
| EQ | - | Yes (via GLM software) |
| Frequency Response | - | 32Hz - 40kHz (±1.5dB) (Manufacturer specified) |
| Max SPL | - | 113dB @ 1m |
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- Klipsch The Nines vs Genelec 8351B
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Prices on this page were last checked August 25, 2026 at 6:19 AM 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
Klipsch The Sevens: $999.99 Amazon eBay
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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Klipsch The Sevens vs Edifier R2850DB
- Klipsch The Sevens vs Kali Audio LP-8
- Klipsch The Sevens vs Adam Audio T7V
- Klipsch The Sevens vs Emotiva Airmotiv 6s
- Klipsch The Sevens vs Edifier S3000Pro
- Klipsch The Sevens vs Adam Audio S2V
- Klipsch The Sevens vs Genelec 8341A
- Klipsch The Sevens vs JBL 306P MKII
- See all 28 comparisons
Genelec 8351B: $9150 Bhphotovideo eBay
Pros: CEA2034 spinorama shows exceptionally flat response both on- and off-axis. Predicted in-room response is “as good as it gets” - should sound very neutral in nearly any room. Horizontal beamwidth of about ±50 degrees is described by the reviewer as exceptionally smooth, a model example of well-executed directivity control. Vertical directivity is nearly as good as horizontal, a benefit of its coaxial driver design that’s rare among non-coaxial monitors. Distortion at 86dB SPL/1m is remarkably low - the reviewer says it’s “better than many headphones.”
Cons: Deep bass distortion rises substantially at higher output (96dB SPL/1m) - the reviewer notes “deep bass suffers” below about 100Hz. A distortion spike also appears near 8-10kHz at that same higher output level. Cumulative spectral decay (waterfall) measurements show resonances around 1-2kHz. Very expensive.
Full Genelec 8351B review and specifications →
| App | Yes (GLM) |
|---|---|
| Bass Extension (-10dB) | 28Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 33Hz (measured, Audio Science Review) |
| Bluetooth | No |
| DSP | Yes |
| Dimensions | 17"H x 11.3"W x 10.9"D (431.8 x 287 x 276.9 mm) |
| Drivers | 8.6" woofer, 5" coaxial with tweeter midrange, 0.75" (19mm) coaxial tweeter |
| EQ | Yes (via GLM software) |
| Frequency Response | 32Hz - 40kHz (±1.5dB) (Manufacturer specified) |
| Inputs | XLR |
| Max SPL | 113dB @ 1m |
| Output Power | 550w Per Speaker |
| Weight | 31.1 lbs / 14.1 kg each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons