Switchcraft 303 Male XLR to Female XLR with -20B Attenuation Circuit, Ground Lift Function and 180° Phase Inverse, Metal Nickel Plated Design

For professional audio and security monitoring where clean, controllable mic-level signals matter, the Switchcraft 303 XLR adapter is a compact solution that solves common connectivity and level problems. This pro microphone cable adapter features a built-in -20 dB attenuation circuit to tame hot microphone outputs and prevent preamp overload, while a ground lift switch eliminates hum caused by ground loops. The 180° phase inversion lets you correct polarity mismatches quickly, improving clarity for spoken-word, broadcast, or surveillance audio feeds.

Built in a durable nickel-plated metal housing, the Switchcraft 303 is designed to withstand repeated use in live sound, studio, conferencing, and security/surveillance monitoring applications. The male XLR to female XLR configuration makes inline insertion simple—no tools or cable re-termination required. Whether you’re balancing levels between a microphone and recorder, troubleshooting noise in a security audio chain, or optimizing a broadcast feed, this compact adapter saves time and preserves audio integrity. Add the Switchcraft 303 to your toolkit for reliable level control and connectivity on the job.

• Precise level control with built-in -20 dB attenuation to prevent clipping and protect downstream preamps.
• Ground lift switch removes hum and ground-loop noise for cleaner audio in mixed equipment racks.
• 180° phase invert fixes polarity issues instantly without rewiring, preserving speech intelligibility and instrument tone.
• Rugged nickel-plated metal housing resists wear and ensures reliable connections in live, studio, and security installations.
• Male XLR to female XLR inline adapter for fast, compatible integration with microphones, mixers, and recorders.
• Ideal for broadcast, monitoring, surveillance audio, and pro audio setups where stable mic-level control is critical.