Comparison of Apex Electronics 591 and Nady SCM-900 [S]ave
| Attribute |  Apex Electronics 591 × |  Nady SCM-900 × |
|---|---|---|
| Impedance (Ohm) | 200 | 200 |
| Sound Pressure Level (SPL) (dB) | 142 | 125 |
| Filters |
| - |
| Length (mm) | 227 | 190 |
| Requires Phantom Power | + | + |
| Battery compartment type | 9V | - |
| Pickup Pattern |
|
|
| Max Diameter (mm) | 33 | 51 |
| Name | Apex Electronics 591 | Nady SCM-900 |
| Brand | Apex Electronics | Nady |
| Weight (g) | 490 | 390 |
| Capsule Diameter (mm) | 16 | 32 |
| Phantom Voltage (V) | 48.00 | 48.00 |
| Self-Noise (dB) | 21 | - |
| Sensitivity (mV/Pa) | 7.9 | 12 |
| SPL/Self-Noise Ratio | 6.76 | - |
| Range (Hz) | 40 - 20,000 | 30 - 16,000 |
| Interfaces |
|
|
| Pads |
| - |
| Diaphragm Diameter (mm) | - | 25 |
| Has Battery Compartment | - | - |
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