Short answer: the Klipsch The Sevens for in-room bass; the JBL 306P MKII for a smooth nearfield curve. The Sevens reach about 40 Hz in-room with a solid, controlled thump and measured extension to F3 49Hz/F10 36Hz, though their horizontal radiation is narrower than the Klipsch The Nines. The JBL is smooth on-axis for a compact 6.5-inch monitor, with a dip around 1.6kHz.
On the JBL 306P MKII side: CEA2034 spinorama shows a nice, smooth on-axis response with very good directivity control for a compact 6.5” monitor. Set against that: A narrow but noticeable dip around 1.6kHz shows up in the on-axis and listening-window curves.
Buy the JBL 306P MKII. It is rated higher for sound quality than the Klipsch The Sevens and costs less, so only choose the other one for a particular feature it does better.
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Specifications Side By Side
| JBL 306P MKII | Klipsch The Sevens | |
|---|---|---|
| Price | $398 per pair | $999.99 per pair |
| Ranked | #41 of 68 in Large Size Powered Bookshelf Speakers | #65 of 68 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 46.9Hz (measured, Audio Science Review) | 49Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 38.6Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 36Hz (measured, Erin’s Audio Corner) |
| Dimensions | 16.1”H x 11.2”W x 12.9”D (408 x 285 x 328 mm) | 16.375”H x 8.125”W x 13.1875”D |
| Frequency Response | 39Hz - 24kHz (-10dB) (Manufacturer specified) | 39Hz - 25kHz (+/-3dB) (Manufacturer specified) |
| Weight | 13.4 lbs (6.1 kg) each | 22.3 lbs (10.1 kg) (primary), 19.8 lbs (9 kg) (secondary) |
| Drivers | 6.5” woofer, 1” neodymium tweeter | 6.5” high-excursion woofer, 1” titanium tweeter on Tractrix horn |
| App | No | Yes (treble/mid/bass EQ, subwoofer output, dynamic bass mode) |
| EQ | No | - |
| DSP | No | - |
| Amplifier Power | 112W total | 200W total (400W peak) |
| Spinorama Preference Score | 5.06 | - |
| Spinorama Preference Score with Perfect Sub | 6.94 | - |
| Inputs | XLR, 1/4” TRS | HDMI, Phono, 3.5mm, USB, Optical, Bluetooth |
| XLR Input | Yes | No |
| RCA Input | No | No |
| TRS Input | Yes | No |
| Optical Input | No | Yes |
| Coaxial Input | No | No |
| USB Input | No | Yes |
| HDMI Input | No | Yes |
| AES Input | No | No |
| Aux Input | No | Yes |
| Bluetooth | No | Yes, 5.0 |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX HD |
| Woofer Cabinet | - | ported, rear flared port |
| Subwoofer Output | - | Yes |
| Outputs | - | Subwoofer |
Related Speaker Comparisons
How JBL 306P MKII compares with other leading options:
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- JBL 306P MKII vs Adam Audio S2V
- Neumann KH 310 A vs JBL 306P MKII
- JBL 308P MKII vs JBL 306P MKII
Prices on this page were last checked October 2, 2026 at 10:18 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
JBL 306P MKII: $398 per pair B&H Photo Video eBay
Pros: A 6.94 ideal-subwoofer score and 46.9Hz measured -3dB extension make this a useful affordable nearfield monitor. The waveguide supports broad horizontal listening coverage, and basic boundary controls help with setup. Measured bass extension of 46.9Hz (-3dB).
Cons: The 3.4dB response span from 300Hz to 5kHz is less even than the 308P MKII’s, with midrange resonances affecting neutrality. Hiss can matter at a quiet desk, while bass distortion limits demanding playback. A subwoofer improves bandwidth but does not remove the midrange irregularities. A narrow dip around 1.6kHz shows in the on-axis and listening-window curves.
Full JBL 306P MKII review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 112W total |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 38.6Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 46.9Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | No |
| Dimensions | 16.1”H x 11.2”W x 12.9”D (408 x 285 x 328 mm) |
| Drivers | 6.5” woofer, 1” neodymium tweeter |
| EQ | No |
| Frequency Response | 39Hz - 24kHz (-10dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, 1/4” TRS |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.06 |
| Spinorama Preference Score with Perfect Sub | 6.94 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 13.4 lbs (6.1 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Klipsch The Sevens: $999.99 per pair Amazon eBay
Newer model: the Klipsch The Sevens II. It’s likely to perform similarly, though we can’t confirm that yet.
Pros: Erin reported 49Hz -3dB extension, with useful bass for ordinary music listening. HDMI, phono, USB, optical and Bluetooth connections make the system convenient for TV and music, while app controls and a subwoofer output provide adjustment options. Bass reaches about 36Hz at -10dB, delivering a controlled thump near 40Hz in-room without strain. Measured bass extension of 49Hz (-3dB).
Cons: The review found a recessed 2-4kHz region and upper-treble emphasis, producing a scooped balance that a simple treble reduction did not fully fix. Relatively narrow horizontal coverage limits consistency across seats.
Full Klipsch The Sevens review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 200W total (400W peak) |
| App | Yes (treble/mid/bass EQ, subwoofer output, dynamic bass mode) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 36Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 49Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes, 5.0 |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| Coaxial Input | No |
| Dimensions | 16.375”H x 8.125”W x 13.1875”D |
| Drivers | 6.5” high-excursion woofer, 1” titanium tweeter on Tractrix horn |
| Frequency Response | 39Hz - 25kHz (+/-3dB) (Manufacturer specified) |
| HDMI Input | Yes |
| Inputs | HDMI, Phono, 3.5mm, USB, Optical, Bluetooth |
| Optical Input | Yes |
| Outputs | Subwoofer |
| RCA Input | No |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | Yes |
| Weight | 22.3 lbs (10.1 kg) (primary), 19.8 lbs (9 kg) (secondary) |
| Woofer Cabinet | ported, rear flared port |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
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