| Attribute | Hammer Audio HA-872 × | Ningbo Alctron Electronics Co., Ltd. STM400 × |
|---|---|---|
| Brand | Hammer Audio | Ningbo Alctron Electronics Co., Ltd. |
| Sensitivity (mV/Pa) | 10 | 15.8 |
| Pickup Pattern |
|
|
| Filters |
| - |
| Range (Hz) | 20 - 20,000 | 20 - 20,000 |
| Phantom Voltage (V) | 48.00 | - |
| Capsule Diameter (mm) | 34 | 32 |
| Sound Pressure Level (SPL) (dB) | 142 | 145 |
| Diaphragm Gauge (micron) | 6 | - |
| SPL/Self-Noise Ratio | 10.14 | 8.06 |
| Self-Noise (dB) | 14 | 18 |
| Max Diameter (mm) | 75 | 46 |
| Interfaces |
|
|
| Length (mm) | 240 | 260 |
| Name | Hammer Audio HA-872 | Ningbo Alctron Electronics Co., Ltd. STM400 |
| Diaphragm Diameter (mm) | 37 | 25 |
| Weight (g) | 791 | 740 |
| Requires Phantom Power | + | - |