Short answer: the Genelec 8361A for better sound quality, the JBL 308P MKII for the lower price. The Genelec 8361A ranks #5 of 66 powered bookshelf speakers at $10900. The JBL 308P MKII ranks #26 at $498, $10402 cheaper.
What the Genelec 8361A offers: Three-way coaxial design: 5” mid-range with an inset 1” metal dome tweeter, flanked symmetrically above and below by two 10” front-loaded woofers, giving nearly identical vertical response whether you’re sitting or standing. Wide, consistent horizontal radiation of about ±60°, very forgiving for multiple seats or a home-theater row. Distortion at both 86dB and 96dB/1m stays below roughly 1%, and multitone distortion is also under about 1% - among the cleanest speakers reviewed. Long-term compression is practically non-existent, with no woofer bottoming or audible intermodulation even driven to 90dB+ at 10 feet. In-room bass extension reaches down to about 35Hz without a subwoofer. Extensive back-panel tuning (bass rolloff, bass profile, treble profile, and a desk/console compensation switch) for boundary placement. Watch for: Approximately $11,000 per pair; Genelec’s GLM room-correction add-on (measurement mic plus software) is another ~$450 and wasn’t used in this review. Shows an on-axis dip around 200Hz that may be tied to some rear-panel radiation or resonance the reviewer couldn’t fully explain. In far-field listening there’s a mild upper-midrange/lower-treble rise (roughly 2-3kHz) that only smooths out with 5-10° of toe-out or closer near-field placement. Short-term compression testing shows some tweeter limiting, though it didn’t translate to audible issues in real-world listening. At about 70 lbs, awkward to lift onto a stand alone.
What the JBL 308P MKII offers: CEA2034 spinorama shows an essentially flat on-axis response from 45Hz to above 15kHz, with almost no directivity error. Dual 56W Class D amps drive an 8” woofer and 1” tweeter with a smooth, imperceptible crossover transition. Excellent value at $498 per pair. Watch for: A resonance shows up around 18kHz and a slight dip around 1.4kHz. An electronic limiter creates measurable anomalies around 96dB, and maximum clean output tops out around 105dB SPL before heavy limiting kicks in. Some audible tweeter hiss at close range.
Buy the Genelec 8361A if sound quality matters more than the price. Buy the JBL 308P MKII if the price matters more than sound quality.
Specifications Side By Side
| Genelec 8361A | JBL 308P MKII | |
|---|---|---|
| Price | $10900 | $498 |
| Ranked | #5 of 66 in Large Size Powered Bookshelf Speakers | #26 of 66 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 29Hz (measured, Erin’s Audio Corner) | 60Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 34Hz (measured, Erin’s Audio Corner) | 82Hz (measured, Audio Science Review) |
| Dimensions | 22.5"H x 14"W x 13.6"D (571.5 x 355.6 x 345.4 mm) | 16.5"H x 10"W x 12.1"D (419.1 x 254 x 307.3 mm) |
| Inputs | XLR | - |
| Drivers | Dual 263 x 137 mm woofers, 5.1" coaxial with tweeter midrange, 1" (25mm) coaxial tweeter | 8" woofer, 1" neodymium tweeter |
| Weight | 70.3 lbs / 31.9 kg each | not published by manufacturer |
| App | Yes (GLM) | No |
| Bluetooth | No | - |
| DSP | Yes | No |
| EQ | Yes (via GLM software) | No |
| Frequency Response | 30Hz - 43kHz (±2dB) (Manufacturer specified) | 45Hz - 20kHz (+/-3dB) (Manufacturer specified) |
| Max SPL | 118dB @ 1m | - |
| Output Power | 1000w Per Speaker | 112W total |
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- Genelec 8361A vs Kali Audio IN-8 V2
- Genelec 8361A vs Focal Alpha 65 EVO
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
Genelec 8361A: $10900 Bhphotovideo eBay
Pros: Three-way coaxial design: 5” mid-range with an inset 1” metal dome tweeter, flanked symmetrically above and below by two 10” front-loaded woofers, giving nearly identical vertical response whether you’re sitting or standing. Wide, consistent horizontal radiation of about ±60°, very forgiving for multiple seats or a home-theater row. Distortion at both 86dB and 96dB/1m stays below roughly 1%, and multitone distortion is also under about 1% - among the cleanest speakers reviewed. Long-term compression is practically non-existent, with no woofer bottoming or audible intermodulation even driven to 90dB+ at 10 feet. In-room bass extension reaches down to about 35Hz without a subwoofer. Extensive back-panel tuning (bass rolloff, bass profile, treble profile, and a desk/console compensation switch) for boundary placement.
Cons: Approximately $11,000 per pair; Genelec’s GLM room-correction add-on (measurement mic plus software) is another ~$450 and wasn’t used in this review. Shows an on-axis dip around 200Hz that may be tied to some rear-panel radiation or resonance the reviewer couldn’t fully explain. In far-field listening there’s a mild upper-midrange/lower-treble rise (roughly 2-3kHz) that only smooths out with 5-10° of toe-out or closer near-field placement. Short-term compression testing shows some tweeter limiting, though it didn’t translate to audible issues in real-world listening. At about 70 lbs, awkward to lift onto a stand alone.
Full Genelec 8361A review and specifications →
| App | Yes (GLM) |
|---|---|
| Bass Extension (-10dB) | 29Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 34Hz (measured, Erin's Audio Corner) |
| Bluetooth | No |
| DSP | Yes |
| Dimensions | 22.5"H x 14"W x 13.6"D (571.5 x 355.6 x 345.4 mm) |
| Drivers | Dual 263 x 137 mm woofers, 5.1" coaxial with tweeter midrange, 1" (25mm) coaxial tweeter |
| EQ | Yes (via GLM software) |
| Frequency Response | 30Hz - 43kHz (±2dB) (Manufacturer specified) |
| Inputs | XLR |
| Max SPL | 118dB @ 1m |
| Output Power | 1000w Per Speaker |
| Weight | 70.3 lbs / 31.9 kg each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
JBL 308P MKII: $498 Bhphotovideo eBay
Pros: CEA2034 spinorama shows an essentially flat on-axis response from 45Hz to above 15kHz, with almost no directivity error. Dual 56W Class D amps drive an 8” woofer and 1” tweeter with a smooth, imperceptible crossover transition. Excellent value at $498 per pair.
Cons: A resonance shows up around 18kHz and a slight dip around 1.4kHz. An electronic limiter creates measurable anomalies around 96dB, and maximum clean output tops out around 105dB SPL before heavy limiting kicks in. Some audible tweeter hiss at close range.
Full JBL 308P MKII review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 60Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 82Hz (measured, Audio Science Review) |
| DSP | No |
| Dimensions | 16.5"H x 10"W x 12.1"D (419.1 x 254 x 307.3 mm) |
| Drivers | 8" woofer, 1" neodymium tweeter |
| EQ | No |
| Frequency Response | 45Hz - 20kHz (+/-3dB) (Manufacturer specified) |
| Output Power | 112W total |
| Weight | not published by manufacturer |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons