The versatile JBL M-Patch Active-1 provides audio engineers and producers with essential monitoring functions that enhance the workflow in professional recording, post-production, and broadcast studios. It accommodates four input sources (3 x stereo analog and 1 x stereo USB) and offers three stereo analog outputs plus a stereo USB output, all with seamless A/B switching between input signals and output speaker monitor systems. There are also two headphone outputs, each with its own volume control.