Comparison of Groove Tubes GT66 and MXL V67i Tube [S]ave
| Attribute |  MXL V67i Tube × |  Groove Tubes GT66 × |
|---|---|---|
| Sound Pressure Level (SPL) (dB) | 150 | 140 |
| Self-Noise (dB) | 22 | 23 |
| Diaphragm Gauge (micron) | 6 | 3 |
| Impedance (Ohm) | 200 | 200 |
| Weight (g) | 680 | 680 |
| Length (mm) | 210 | 190 |
| Pads |
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| Interfaces |
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| Sensitivity (mV/Pa) | 22 | 25 |
| Range (Hz) | 20 - 20,000 | 20 - 20,000 |
| Pickup Pattern |
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| Brand | MXL | Groove Tubes |
| Name | MXL V67i Tube | Groove Tubes GT66 |
| SPL/Self-Noise Ratio | 6.82 | 6.09 |
| Filters |
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| Max Diameter (mm) | 47 | 64 |
| Capsule Diameter (mm) | 32 | 32 |
| Includes Tube Power Supply | + | + |
| Diaphragm Diameter (mm) | 25 | 25 |
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