Short answer: the XMechanik Mechano23 DIY. It ranks #6 of 179 bookshelf speakers by sound quality, rated 4.4/5, at $200; the Q Acoustics 5020 ranks #157, rated 2.2/5, and costs $1,199, which makes this an easy call rather than a real tradeoff.
The XMechanik Mechano23 DIY is the more accurate, deeper-bass option. A DIY bookshelf design with exceptionally accurate sound that rivals far pricier speakers for a modest parts cost. Its measured preference score, a predictor of how neutral it sounds, is 5.42 against 3.63 for the Q Acoustics 5020. Its bass reaches about 77.6Hz before falling 3dB, against 103Hz for the Q Acoustics 5020. The catch: This is a true DIY project.
The case for the Q Acoustics 5020: An attractively finished standmount with low distortion at normal levels and a rear port that can be plugged for placement flexibility. The catch: 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.
Buy the XMechanik Mechano23 DIY. It is rated higher for sound quality than the Q Acoustics 5020 and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Passive Home rankings.
A DIY bookshelf design with exceptionally accurate sound that rivals far pricier speakers for a modest parts cost.
An attractively finished standmount with low distortion at normal levels and a rear port that can be plugged for placement flexibility.
Prices on this page were last checked October 31, 2026 at 7:11 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| XMechanik Mechano23 DIY | Q Acoustics 5020 | |
|---|---|---|
| Price | $200 per pair DIY parts | $1,199.00 per pair |
| Ranked | #6 of 179 in Medium Size Bookshelf Speakers | #157 of 179 in Medium Size Bookshelf Speakers |
| Enclosure | ported | - |
| Drivers | Scan-Speak Discovery H2606/9200 1” horn loaded textile dome tweeter, SB Acoustics SB13PFCR25-4 5” fiber cone woofer | 5” (125mm) C3 mid/bass driver, 1” (25mm) tweeter |
| Dimensions | 11.4”H x 6.9”W x 10.4”D (290 x 174 x 263 mm) | 11.2”H x 7.1”W x 11.5”D |
| Sensitivity | 85.1dB @ 2.83V/1m (measured, Audio Science Review) | 87.1dB (2.83V/1m, measured, Erin’s Audio Corner; 87.9dB manufacturer specified) |
| Bass Extension (-3dB) | 77.6Hz (measured, Audio Science Review) | 103Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 42.4Hz (measured, Audio Science Review) | 48Hz (measured, Erin’s Audio Corner) |
| Port Tuning | Approximately 45Hz | - |
| Cabinet Material | 18mm Baltic birch plywood | - |
| Country | Design origin: United States (ASR forum); assembled by buyer | - |
| Spinorama Preference Score | 5.42 | 3.63 |
| Spinorama Preference Score with Perfect Sub | 7.88 | 6.55 |
| Impedance | 4.1 ohms nominal (measured, ASR) | 6 ohms nominal, 3.3 ohms minimum (manufacturer specified) |
| DIY Kit | Yes | No |
| Crossover Frequency | - | 2.5kHz (manufacturer specified) |
| Weight | - | 15.4 lbs (7.0 kg) each |
| Frequency Response | - | 53Hz - 30kHz (-6dB, manufacturer specified) |
| Recommended Power | - | 25W - 100W (manufacturer specified) |
| Woofer Cabinet | - | rear-ported |
Related Speaker Comparisons
More top alternatives to XMechanik Mechano23 DIY: