| Attribute | CAD Audio E300S × | Sterling Audio ST66 Tube × |
|---|---|---|
| Self-Noise (dB) | 12 | 23 |
| SPL/Self-Noise Ratio | 12.08 | 6.09 |
| Impedance (Ohm) | 220 | 200 |
| Sound Pressure Level (SPL) (dB) | 145 | 140 |
| Diaphragm Gauge (micron) | - | 3 |
| Weight (g) | 510 | 544 |
| Pads |
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| Requires Phantom Power | + | - |
| Sensitivity (mV/Pa) | 20 | 25 |
| Range (Hz) | 20 - 20,000 | 20 - 20,000 |
| Pickup Pattern |
|
|
| Brand | CAD Audio | Sterling Audio |
| Name | CAD Audio E300S | Sterling Audio ST66 Tube |
| Max Diameter (mm) | 77 | 46 |
| Filters |
|
|
| Interfaces |
|
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| Capsule Diameter (mm) | 33.6 | 32 |
| Has Battery Compartment | - | - |
| Length (mm) | 190 | 190 |
| Includes Tube Power Supply | - | + |
| Diaphragm Diameter (mm) | 26.3 | 25 |