Bring your audio experience to the next level with the TOA Electronics B-21S Balanced Line Level Screw Terminal Input Module. Specifically designed for seamless integration with TOA 900 series amplifiers, this high-quality input module is a must-have for professionals in the audio and video industry. The B-21S features a robust screw terminal connector, ensuring a secure and reliable connection. It's capable of supporting both balanced and unbalanced line level signals, making it a versatile choice for a variety of audio devices, including CD players, tape decks, and AM/FM tuners. One of the standout features of this innovative input module is its transformer-isolated design. This thoughtful feature significantly minimizes ground loop issues when the module is connected to remote equipment, ensuring a clean, interference-free audio output. Moreover, the B-21S is equipped with a remote volume control feature. This user-friendly addition allows you to adjust the output signal from a distance using an external potentiometer, adding a layer of convenience to your audio setup. In summary, the TOA Electronics B-21S Balanced Line Level Screw Terminal Input Module with Remote Volume Control is a durable, reliable, and innovative solution for enhancing your audio experience with TOA 900 series amplifiers.