Short answer: the Genelec S360 for main-monitor output, the JBL 708P for a smaller room. The S360 is a large format 10 inch two-way built for film and post production, with peak SPL over 128dB plus GLM calibration and a Directivity Control Waveguide, but its 1.16 bass Q is the highest measured and can bump near port tuning. The 708P is extremely good on and off axis with excellent horizontal directivity, despite a mild port-resonance rise around 600-900Hz.
What the JBL 708P gets right: CEA2034 spinorama shows extremely good frequency response both on- and off-axis, with excellent horizontal directivity. The catch: A port resonance creates a mild rise around 600-900Hz. Vertical dispersion is narrower than horizontal, so staying within a few degrees of the tweeter axis matters.
Buy the JBL 708P when the price outweighs sound quality for you, and the Genelec S360 when sound quality outweighs the price instead.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| JBL 708P | Genelec S360 | |
|---|---|---|
| Price | $4000 per pair | $9,550 per pair |
| Ranked | #39 of 68 in Large Size Powered Bookshelf Speakers | #20 of 68 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 43.9Hz (measured, Erin’s Audio Corner) | 39.6Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 35.6Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 35.6Hz (measured, Audio Science Review) |
| Dimensions | 17.2”H x 9.8”W x 11.5”D (438 x 248 x 292 mm) | 20.9”H x 14.2”W x 14.2”D (530 x 360 x 360 mm) |
| Frequency Response | 41Hz - 25kHz (+/-3dB) (Manufacturer specified) | 36Hz-22kHz -6dB |
| Weight | 25.1 lbs (11.4 kg) each | 66.1 lbs (30 kg) each |
| Drivers | 8” woofer, 2409H 1” compression driver | 1” titanium compression tweeter, 10” cone woofer |
| App | No | - |
| EQ | No | - |
| DSP | No | - |
| Amplifier Power | 500W total (250W woofer, 250W tweeter) | 350W total (250W woofer, 100W tweeter, Class D) |
| Spinorama Preference Score | 5.03 | 5.96 |
| Spinorama Preference Score with Perfect Sub | 6.91 | 7.70 |
| Inputs | XLR/TRS combo (analog), XLR AES3 (digital) | XLR (analog), XLR AES/EBU (digital) |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | Yes | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | Yes | Yes |
| Aux Input | No | No |
| Bluetooth | No | No |
| Enclosure | - | ported |
| Warranty | - | 2 years (5 with product registration) |
| Country | - | Finland |
| Maximum SPL | - | Peak 128dB (manufacturer specified) |
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Prices on this page were last checked October 3, 2026 at 10:26 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 708P: $4000 per pair B&H Photo Video eBay
Pros: Erin’s measurements give 43.9Hz -3dB extension and a 6.91 ideal-subwoofer score, with useful bass from a professional active monitor. The waveguide and onboard processing make it a practical choice for a carefully installed studio system. Measured bass extension of 43.9Hz (-3dB).
Cons: The 2.6dB response span from 300Hz to 5kHz includes audible-relevance irregularities, with port-region features and vertical crossover sensitivity. High-level distortion remains a constraint. Its professional positioning and amplifier power do not make it automatically more neutral than the cheaper 308P MKII. A port resonance adds a mild rise around 600 to 900Hz, and vertical dispersion is narrower than horizontal, so stay within a few degrees of the tweeter axis.
Full JBL 708P review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 500W total (250W woofer, 250W tweeter) |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 35.6Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 43.9Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | No |
| Dimensions | 17.2”H x 9.8”W x 11.5”D (438 x 248 x 292 mm) |
| Drivers | 8” woofer, 2409H 1” compression driver |
| EQ | No |
| Frequency Response | 41Hz - 25kHz (+/-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR/TRS combo (analog), XLR AES3 (digital) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.03 |
| Spinorama Preference Score with Perfect Sub | 6.91 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 25.1 lbs (11.4 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Genelec S360: $9,550 per pair B&H Photo Video eBay
Pros: A strong choice when professional output capability and listening distance matter. The measured 2.0dB response span from 300Hz to 5kHz, 39.6Hz -3dB extension and 7.70 ideal-subwoofer score support balanced sound, while GLM provides room-integration tools. It is capable of peak output over 128dB. Measured bass extension of 39.6Hz (-3dB).
Cons: The substantial enclosure and installation requirements make it excessive for many desks. Its tonal measurements do not surpass the best smaller monitors simply because it can play louder. Deep-bass reproduction still benefits from a subwoofer, especially in high-output systems. The fitted bass-alignment Q of 1.16 suggests a mild bump near the port tuning rather than a clean rolloff.
Full Genelec S360 review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 350W total (250W woofer, 100W tweeter, Class D) |
| Aux Input | No |
| Bass Extension (-10dB) | 35.6Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 39.6Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| Country | Finland |
| Dimensions | 20.9”H x 14.2”W x 14.2”D (530 x 360 x 360 mm) |
| Drivers | 1” titanium compression tweeter, 10” cone woofer |
| Enclosure | ported |
| Frequency Response | 36Hz-22kHz -6dB |
| HDMI Input | No |
| Inputs | XLR (analog), XLR AES/EBU (digital) |
| Maximum SPL | Peak 128dB (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.96 |
| Spinorama Preference Score with Perfect Sub | 7.70 |
| TRS Input | No |
| USB Input | No |
| Warranty | 2 years (5 with product registration) |
| Weight | 66.1 lbs (30 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons