Shure A15HP — In-Line High Pass Filter
A15HP Overview
The Shure A15HP is a balanced XLR in-line high pass filter built for professional audio applications where low-frequency content below 100 Hz must be attenuated at the signal chain level. By filtering rumble, HVAC noise, and low-end handling artifacts before they reach the console, the A15HP helps maintain a cleaner mix without relying on channel EQ. It is well-suited for live sound engineers, broadcast technicians, and system integrators working with microphones in acoustically challenging environments.
The in-line form factor inserts directly between a microphone and its cable run, requiring no external power and adding no bulk to the signal path.
Key Features
- High Pass Filtering at 100 Hz — attenuates low-frequency content below 100 Hz to reduce rumble, handling noise, and environmental interference
- Balanced XLR Connectivity — maintains a fully balanced signal path, preserving common-mode noise rejection throughout the chain
- In-Line Form Factor — inserts directly between microphone and cable with no external power required
- Passive Design — no batteries or phantom power needed, ensuring reliable operation in any signal chain configuration
- Shure Build Quality — constructed to withstand the demands of touring, installed sound, and broadcast environments
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