Comparison of Heil Sound PR-40 and Ningbo Alctron Electronics Co., Ltd. HRM-8B [S]ave
| Attribute |  Ningbo Alctron Electronics Co., Ltd. HRM-8B × |  Heil Sound PR-40 × |
|---|---|---|
| SPL/Self-Noise Ratio | 8.22 | - |
| Self-Noise (dB) | 18 | - |
| Name | Ningbo Alctron Electronics Co., Ltd. HRM-8B | Heil Sound PR-40 |
| Weight (g) | 524 | 383 |
| Pickup Pattern |
|
|
| Brand | Ningbo Alctron Electronics Co., Ltd. | Heil Sound |
| Range (Hz) | 30 - 18,000 | 28 - 18,000 |
| Sensitivity (mV/Pa) | 2 | 2 |
| Impedance (Ohm) | 600 | 600 |
| Sound Pressure Level (SPL) (dB) | 148 | 145 |
| Max Diameter (mm) | 55 | 52 |
| Interfaces |
|
|
| Length (mm) | 170 | 170 |
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