Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Audio-Technica - BP40 | Audio-Technica - AT2020USB+ |
|---|---|---|
| Max SPL | 148 dB | 144 dB |
| Type | Dynamic | Condenser |
| Connection | XLR | USB |
Between the BP40 and AT2020USB+, the BP40 comes out ahead in max spl, while the AT2020USB+ wins on type / connection. Overall, the BP40 scores 65.7 and the AT2020USB+ scores 81.5 on our Mars Score.
Which should you buy?
The AT2020USB+ is the clear pick on raw spec strength, leading by 15.8 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the BP40 if you care most about max spl. The biggest gaps in its favor are max spl. The single most decisive one: Max SPL — 2.78% more. 148 dB vs 144 dB.
Pick the AT2020USB+ if you care most about type / connection. Its strongest claims are type, connection. The single most decisive one: Type: Condenser (vs Dynamic).
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the AT2020USB+ is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Audio-Technica - BP40 or Audio-Technica - AT2020USB+?
Audio-Technica - AT2020USB+ leads the current Mars Score by 15.8 points.The more useful decision is the trade-off behind that result: compare type, connection, max spl against the way you will actually use the product.
Choose Audio-Technica - BP40 if…
Audio-Technica - BP40 has the measurable edge on max spl db.
Choose Audio-Technica - AT2020USB+ if…
Audio-Technica - AT2020USB+ has the measurable edge on type, connection.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Audio-Technica - BP40 wins
- ▲Max SPL — 2.78% more. 148 dB vs 144 dB.
Why Audio-Technica - AT2020USB+ wins
- ▲Type: Condenser (vs Dynamic).
- ▲Connection: USB (vs XLR).
Spec comparison
Spec
| Spec | Audio-Technica - BP40 | Audio-Technica - AT2020USB+ |
|---|---|---|
| Type | Dynamic | Condenserlead |
| Polar pattern | Hypercardioid | Cardioid |
| Frequency response | 50Hz–16kHz | 20Hz–20kHz |
| Max SPL | 148 dBlead | 144 dB |
Connectivity
| Spec | Audio-Technica - BP40 | Audio-Technica - AT2020USB+ |
|---|---|---|
| Connection | XLR | USBlead |
| Headphone out | false | truelead |