CA-1a

About the CA-1a

The RAAL-Requisite CA-1a is a circum-aural True Ribbon™ headphone monitor featuring an entirely new motor and manufacturing methods developed over years of R&D. It offers deep bass extension comparable to high-end headphones like the Susvara, with slam akin to the Utopia, while retaining the speed, detail, and attack unique to ribbon drivers. The CA-1a provides a sound signature that blends planar and electrostatic characteristics, with vivid imaging, wide soundstage, and exceptional resolution, though it requires specialized amplification or the TI-1b transformer interface to operate effectively. It comes with two sets of acoustic foam pads: one open design for a more spacious sound and one closed for enhanced bass and seal. The headphone is noted for its agility, speed, and revealing presentation, but has a somewhat uneven frequency response that benefits significantly from EQ adjustments. The design prioritizes acoustic performance and comfort over aesthetics, with a utilitarian, industrial look. The CA-1a is