Xtahdge Passive Audio Volume Controller, Full Balanced & Single-Ended Mode with XLR & RCA Interface for Home Stereo System Preamp Speakers

Passive preamp/speaker volume controller: No external power supply is required for plug-and-play operation. Small body: The ultra-compact controller is made of a sturdy and durable metal housing, saving space and making it easy to carry. High sound quality: Stable, lossless transmission ensures pure, noise-free sound. Easy control: The front panel has a switch to select fully balanced or single-ended input/output. The back has RCA and XLR interfaces. Wide range of applications: This device can be connected to audio devices without volume control and is ideal for stereo systems.