The Shure A15LA provides 50dB of attenuation, allowing a balanced line-level source to be connected to a balanced microphone input.
| Input Impedance | 100 kΩ |
| Output Impedance | 300 Ω |
| Frequency Response | 20Hz to 20Khz |
| Attenuation / Gain | 50dB |
| Input Connector | XLR (female) |
| Output Connector | XLR (male) |
| Weight | 2.8 oz (80g) |
| Diameter | 0.75" (19mm) |
| Length | 4.5" (114mm) |