Short answer: the Micca RB42, narrowly, since the Q Acoustics 5020 runs bright and costs far more, though neither ranks well in its class. Erin found the 5020’s tonal balance distinctly too crisp and treble-heavy, with the top end roughly 3-5dB elevated and the 1-3kHz region recessed, so vocals change level unnaturally. The RB42’s curved cabinet looks closer to a $400-500 speaker than a $150 one, but its spinorama shows peaks and valleys from a few kHz up. Both are rated below 3.0/5 among the 90 bookshelf speakers, so if sound quality matters, consider the Philharmonic Ceramic Mini instead, ranked #2 at $900.
Buy the Micca RB42. It is rated higher for sound quality than the Q Acoustics 5020 and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Micca RB42 | Q Acoustics 5020 | |
|---|---|---|
| Price | $159.99 per pair | $1,199.00 per pair |
| Ranked | #75 of 90 in Medium Size Bookshelf Speakers | #76 of 90 in Medium Size Bookshelf Speakers |
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) - the reviewer noted an artificial boost around 100-300Hz, so true extension may be worse than this on-axis reading suggests | 103Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 62Hz (measured, Audio Science Review) - the reviewer noted an artificial boost around 100-300Hz, so true extension may be worse than this on-axis reading suggests | 48Hz (measured, Erin’s Audio Corner) |
| Drivers | 4” coated paper woofer, 0.75” silk dome tweeter | 5” (125mm) C3 mid/bass driver, 1” (25mm) tweeter |
| Dimensions | 8.7H x 4.9W x 7.9D in | 11.2”H x 7.1”W x 11.5”D |
| Weight | 6 lbs (2.7 kg) each (per retailer listing) | 15.4 lbs (7.0 kg) each |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified, typical in-room) | 53Hz - 30kHz (-6dB, manufacturer specified) |
| Sensitivity | 80dB (2.83V/1m, measured, Audio Science Review) | 87.1dB (2.83V/1m, measured, Erin’s Audio Corner; 87.9dB manufacturer specified) |
| Impedance | 4-8 ohms | 6 ohms nominal, 3.3 ohms minimum (manufacturer specified) |
| Power Handling | 15-100W each | - |
| Woofer Cabinet | ported, front | rear-ported |
| Spinorama Preference Score | 4.59 | 3.63 |
| Spinorama Preference Score with Perfect Sub | 6.87 | 6.55 |
| DIY Kit | No | No |
| Crossover Frequency | - | 2.5kHz (manufacturer specified) |
| Recommended Power | - | 25W - 100W (manufacturer specified) |
Related Speaker Comparisons
How Micca RB42 compares with other leading options:
- Micca RB42 vs Audio First Fidelia
- Micca RB42 vs Philharmonic Ceramic Mini
- Ascend Sierra 1 v2 vs Micca RB42
- KEF LS50 Meta vs Micca RB42
- XMechanik Mechano23 DIY vs Micca RB42
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
Micca RB42: $159.99 per pair Amazon eBay
Pros: Curved cabinet fit and finish look closer to a speaker costing three times as much. Rated for a wide 15-100W amplifier range with 4-8 ohm compatibility, giving flexibility with modest amplification. Measured bass extension of 85Hz (-3dB), with a measured sensitivity of 80dB.
Cons: CEA2034 spinorama shows significant peaks and valleys in the on-axis and listening-window response starting a few kHz up, with excess high-frequency energy the reviewer found fatiguing over time despite an initial impression of “detail.” Off-axis response diverges heavily from on-axis, meaning tonality shifts with room and listening position in ways EQ can’t correct. Distorts and the woofer visibly flaps under moderate volume; low 83dB sensitivity makes it a harder amplifier load than its size suggests.
Full Micca RB42 review and specifications →
| Bass Extension (-10dB) | 62Hz (measured, Audio Science Review) - the reviewer noted an artificial boost around 100-300Hz, so true extension may be worse than this on-axis reading suggests |
|---|---|
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) - the reviewer noted an artificial boost around 100-300Hz, so true extension may be worse than this on-axis reading suggests |
| DIY Kit | No |
| Dimensions | 8.7H x 4.9W x 7.9D in |
| Drivers | 4” coated paper woofer, 0.75” silk dome tweeter |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified, typical in-room) |
| Impedance | 4-8 ohms |
| Power Handling | 15-100W each |
| Sensitivity | 80dB (2.83V/1m, measured, Audio Science Review) |
| Spinorama Preference Score | 4.59 |
| Spinorama Preference Score with Perfect Sub | 6.87 |
| Weight | 6 lbs (2.7 kg) each (per retailer listing) |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Q Acoustics 5020: $1,199.00 per pair Amazon eBay
Pros: Attractively finished compact standmount with a 5-inch Continuous Curved Cone woofer and carefully engineered cabinet details. Erin found distortion well controlled at normal levels: below 1% down to about 50Hz at 86dB/1m. Its 87dB measured sensitivity is unremarkable rather than hard to drive, and it maintains acceptable output for typical 80-85dB listening. The rear port can be plugged for placement flexibility. Measured bass extension of 103Hz (-3dB), with a measured sensitivity of 87.1dB.
Cons: Erin found the tonal balance distinctly too crisp, forward and treble-heavy: the top end is roughly 3-5dB elevated while the 1-3kHz region is recessed, so vocals change level unnaturally as they move through their range. The shallow woofer crossover and steeper tweeter slope contribute to the off-axis discontinuity, while the port has a strong 1kHz resonance. Bass is limited: Erin measured F3 103Hz and F10 48Hz; at 96dB distortion reaches about 3% by 100Hz, and he bottomed the woofer when pushed hard. He preferred the less-expensive 3020i’s linearity and did not recommend the 5020 for neutral listening without EQ.
Full Q Acoustics 5020 review and specifications →
| Bass Extension (-10dB) | 48Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 103Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 2.5kHz (manufacturer specified) |
| DIY Kit | No |
| Dimensions | 11.2”H x 7.1”W x 11.5”D |
| Drivers | 5” (125mm) C3 mid/bass driver, 1” (25mm) tweeter |
| Frequency Response | 53Hz - 30kHz (-6dB, manufacturer specified) |
| Impedance | 6 ohms nominal, 3.3 ohms minimum (manufacturer specified) |
| Recommended Power | 25W - 100W (manufacturer specified) |
| Sensitivity | 87.1dB (2.83V/1m, measured, Erin’s Audio Corner; 87.9dB manufacturer specified) |
| Spinorama Preference Score | 3.63 |
| Spinorama Preference Score with Perfect Sub | 6.55 |
| Weight | 15.4 lbs (7.0 kg) each |
| Woofer Cabinet | rear-ported |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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