The Hammond 109L is a potted audio transformer designed for high-performance audio applications. With a primary impedance of 150 ohms and a secondary impedance of 600 ohms, this transformer ensures optimal signal integrity and minimal interference. Its potted design provides excellent protection against environmental factors, making it suitable for both studio and live sound environments. The compact size allows for easy integration into various audio systems, while its compliance with industry standards ensures reliability. The 109L is an essential component for audio professionals seeking to enhance their sound quality.