The Shure A15AS is a switch selectable Microphone Attenuator which helps prevent amplifier overload when strong signals are applied. The A15AS bridges the microphone output and allows maximum signal handling without added distortion.
| Input Impedance | 1 kOhm |
| Output Impedance | 150 ohm |
| Frequency Response | 20Hz to 20Khz |
| Attenuation / Gain | (Switch selectable) 15dB, 20dB or 25dB |
| Input Connector | XLR (female) |
| Output Connector | XLR (male) |
| Weight | Not specified by manufacturer |
| Dimensions | 3/4 in. diameter x 4 1/2 in. long (19 x 114mm) |