Short answer: the Ascend Acoustics Sierra 1 v2. It ranks #3 of 179 bookshelf speakers by sound quality, rated 4.7/5, at $1,000. The Q Acoustics 3020c ranks #130, rated 2.6/5, at $519, $481 cheaper, which does not close the gap in sound quality.
The case for the Q Acoustics 3020c: A compact bookshelf speaker that is easy to drive from a small amplifier, offered in four finishes. Watch for: No independent measurements yet, so its tonal balance and directivity can’t be compared with ranked speakers.
The Ascend Acoustics Sierra 1 v2 is the better-sounding pick. An extremely accurate bookshelf speaker, with a bamboo cabinet, wide even dispersion and clean output when played loud. Watch for: F3 of 55Hz and F10 of 39Hz mean in-room extension tops out in the mid-40s Hz; the reviewer still recommends a subwoofer for full-range material.
Buy the Ascend Acoustics Sierra 1 v2. It is rated higher for sound quality, and saving $481 with the Q Acoustics 3020c does not make up for the sound-quality gap.
Worth knowing: the Q Acoustics 3020c has not been measured yet. Its rating is estimated from related models, with a likely range of 2.4 to 2.8, so treat this verdict as provisional.
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Measured Differences
- Efficiency: the Q Acoustics 3020c is rated at 87 dB sensitivity against 81.5 dB for the Ascend Acoustics Sierra 1 v2, so it plays as loud with roughly a third of the amplifier power.
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Specifications Side By Side
| Q Acoustics 3020c | Ascend Acoustics Sierra 1 v2 | |
|---|---|---|
| Price | $519.00 per pair | $1000 per pair |
| Ranked | #130 of 179 in Medium Size Bookshelf Speakers Estimated | #3 of 179 in Medium Size Bookshelf Speakers |
| Drivers | 120mm (4.75”) C3 cone woofer, 22mm soft dome tweeter | 5.25” proprietary mineral-filled polypropylene cone with cast aluminum frame woofer, 26mm aluminum/magnesium alloy dome tweeter with titanium former (SEAS Titan) |
| Frequency Response | 60Hz-30kHz, -6dB (manufacturer specified) | - |
| Sensitivity | 87dB (2.83V/1m, manufacturer specified) | 81.5dB (measured, Erin’s Audio Corner) |
| Impedance | 6 ohms nominal, 3.7 ohms minimum (manufacturer specified) | 8 ohms nominal, 7 ohms minimum (measured, Erin’s Audio Corner) |
| Recommended Power | 25-90W | - |
| Crossover Frequency | 2.6kHz | - |
| Woofer Cabinet | ported | ported |
| Dimensions | 11”H x 6.9”W x 11.1”D (279 x 175 x 281 mm) | 14.2”H x 7.5”W x 10.5”D (361.9 x 190.5 x 266.7 mm) |
| Weight | 12.1 lbs (5.5 kg) each | 18.5 lbs (8.4 kg) each |
| Cabinet Color | white, walnut, oak, black | - |
| Bass Extension (-10dB) | - | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | - | 55Hz (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | - | 6.65 |
| Spinorama Preference Score with Perfect Sub | - | 8.61 |
| DIY Kit | - | No |
Where the Ratings Come From
- Q Acoustics 3020c: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
- Ascend Acoustics Sierra 1 v2: Spinorama.org measurements and reviews by Erin’s Audio Corner and Audio Science Review Ascend.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
Related Speaker Comparisons
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