Data quality
Live coverage and validation health for the bits driver database. We show the warts — this updates automatically after each daily scrape.
LF drivers with validated Thiele/Small parameters
37.4% of LF drivers have a traced response curve
49.2% of LF drivers matched to a vendor listing
Across 41 manufacturers · 8,061 vendor listings
T/S validity
Quality dips when new scrapers land, then recovers as we clean up. This is the honest, fluctuating view.
Quality by scraper
Per-manufacturer T/S validity and vendor coverage. Sort any column, or click a row to drill in.
| Manufacturer | LF drivers | Valid rate | Issues | Vendor coverage |
|---|---|---|---|---|
| Dayton Audio | 265 | 77.0% | 61 | 80.0% |
| B&C | 209 | 99.5% | 1 | 86.4% |
| Visaton | 202 | 48.0% | 105 | 1.6% |
| Tang Band | 172 | 84.9% | 26 | 11.6% |
| Celestion | 150 | 65.3% | 52 | 72.8% |
| Eighteen Sound | 141 | 100.0% | 0 | 82.7% |
| Wavecor | 134 | 79.1% | 28 | 11.3% |
| CIARE | 134 | 87.3% | 17 | 68.7% |
| FaitalPRO | 118 | 100.0% | 0 | 94.1% |
| Monacor | 116 | 80.2% | 23 | 24.7% |
| PRV Audio | 108 | 88.0% | 13 | 50.9% |
| Beyma | 103 | 91.3% | 9 | 35.2% |
| SB Acoustics | 98 | 100.0% | 0 | 94.2% |
| Oberton | 94 | 100.0% | 0 | 5.0% |
| HiVi | 83 | 6.0% | 78 | 33.0% |
| Peerless | 83 | 92.8% | 6 | 45.7% |
| Scanspeak | 70 | 98.6% | 1 | 100.0% |
| Eminence | 69 | 95.7% | 3 | 82.0% |
| BMS | 68 | 48.5% | 35 | 49.0% |
| SEAS | 67 | 74.6% | 17 | 49.0% |
| Lavoce | 62 | 98.4% | 1 | 67.4% |
| RCF | 45 | 100.0% | 0 | 64.2% |
| GRS | 44 | 45.5% | 24 | 88.0% |
| SB Audience | 44 | 63.6% | 16 | 93.7% |
| Morel | 40 | 75.0% | 10 | 75.4% |
| Sica | 37 | 100.0% | 0 | 37.8% |
| Kartesian | 36 | 88.9% | 4 | 0.0% |
| Precision Devices | 30 | 93.3% | 2 | 37.0% |
| Purifi | 30 | 100.0% | 0 | 70.0% |
| Markaudio | 29 | 62.1% | 11 | 42.1% |
| Fostex | 24 | 0.0% | 24 | 0.0% |
| Fane | 23 | 95.7% | 1 | 34.5% |
| Volt | 21 | 28.6% | 15 | 100.0% |
| Accuton | 21 | 95.2% | 1 | 61.3% |
| Audio Technology | 18 | 100.0% | 0 | 0.0% |
| BishopSound | 17 | 100.0% | 0 | 84.2% |
| Fountek | 6 | 66.7% | 2 | 66.7% |
| JBL Professional | 3 | 0.0% | 3 | 11.1% |
| PHL Audio | 1 | 0.0% | 1 | 0.0% |
Coverage by vendor
How well each vendor's listings match to canonical drivers, and where parsing still fails.
| Vendor | Listings | Match rate | Unmatched | Parse fails |
|---|---|---|---|---|
| soundimports | 1,798 | 61.0% | 701 | 30 |
| leanaudio | 1,598 | 49.8% | 802 | 72 |
| bluearan | 1,219 | 54.8% | 551 | 7 |
| leanbusiness | 996 | 64.9% | 350 | 1 |
| partsexpress | 917 | 46.7% | 489 | 5 |
| thomann | 457 | 57.3% | 195 | 15 |
| willyshifi | 457 | 70.2% | 136 | 2 |
| jpleisure | 442 | 70.1% | 132 | 0 |
| wilmslowaudio | 149 | 63.8% | 54 | 10 |
| bishopsound | 19 | 84.2% | 3 | 0 |
| kjfaudio | 9 | 100.0% | 0 | 0 |
Methodology: figures are captured as a daily snapshot over the full database. “Valid” means a driver's Thiele/Small parameters passed automated validation. Match rate is the share of a vendor's listings linked to a canonical driver. Scope is currently low-frequency (LF) drivers.