The Thomann Swissonic A306 ranks #31 out of 68 total Large Size Powered Bookshelf Speakers for sound quality. See all Powered Home rankings for every top pick.
Prices on this page were last checked September 28, 2026 at 4:33 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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#31 Thomann Swissonic A306: $250 per pair Thomann eBay
Pros: With the treble control set to -2dB, Erin measured a 7.29 ideal-subwoofer score and 43.9Hz -3dB bass extension. This is a useful affordable monitoring option when carefully set up, with onboard controls for basic tonal adjustment. Measured bass extension of 43Hz (-3dB), with a measured sensitivity of 89.9dB.
Cons: The published result is not the flat-control setting: it specifically uses -2dB treble. Even then, the response spans 2.8dB from 300Hz to 5kHz, so balance is not as even as the leaders. Bass output and vertical listening position remain practical limitations.
How it compares: Just above it: Focal Solo6 ST6 - $1249 more, 30W more output power. Just below it: Kali Audio LP-6 - $48 more, 20W less output power.
| AES Input | No |
|---|---|
| Amplifier Power | 100W bi-amplified total (50W + 50W, Class D) |
| Aux Input | No |
| Bass Extension (-10dB) | 34Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 43Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Crossover Frequency | 2600Hz |
| DSP | Yes (rear-panel treble/bass trim, wall/near-wall placement switches) |
| Dimensions | 8.8”W x 14.2”H x 11.1”D (224 x 361 x 282 mm) |
| Drivers | 6.5” woofer, 1” silk dome tweeter with waveguide |
| Frequency Response | 43Hz - 20kHz (manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR (balanced), RCA (unbalanced) |
| Optical Input | No |
| RCA Input | Yes |
| Sensitivity | 89.9dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.41 |
| Spinorama Preference Score with Perfect Sub | 7.29 |
| TRS Input | No |
| USB Input | No |
| Weight | 13.6 lbs (6.17 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
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Questions about the Thomann Swissonic A306? Ask other owners on r/Powered_Speakers.