Shure A15HP High Pass Filter

Balanced XLR in-line high pass filter that reduces low frequencies below 100 Hz.

This filter rolls off low audio frequencies to reduce 60 Hz electrical hum, low-frequency wind noise, air conditioner noise, or stand-and floor-transmitted low-frequency vibrations.

When loaded with a low-impedance microphone input (800 ohms or more), the rolloff is 12 dB per octave below 100 Hz. When loaded with 150 ohms, the rolloff is 3 dB at 100 Hz. The output is flat above the rolloff point (with a maximum loss of 0.5 dB at 1 kHz).

SPECIFICATIONS

• Frequency Response
• Flat above rolloff point; -0.5 dB maximum at 1 kHz
• Impedance
• EIA rated at 150 Ω
• Distortion
• 2.5% maximum (100 mV, open circuit voltage)
• Connectors
• Input: XLR, female
• Output: XLR, male
• Housing
• Full magnetic shield, steel with gray enamel finish
• Dimensions
• 19 mm (.75in. diameter); 114 mm (4.5in. long)