RAAL-requisite at Audio46

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RAAL-requisite CA-1a Over-Ear Ribbon Headphone





Product SKU: CA-1a only


Special order

Noncancelable and nonreturnable. It can take 1 to 2 weeks for RAAL-requisite to ship it out

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Audio46 Exclusive: Use code FREESTAND when bundling this item with the Strauss & Wagner SW-HS01 to receive the stand for free!
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Product Details

Audio46's Opinion

The CA-1 showcases incredible speed and control. In terms of sound signature, it delivers a precise and accurate bass presentation with a somewhat linear extension. The mids exhibit remarkable detail and present vocals with intensity, making them a major highlight during listening with the CA-1a. The treble is equally impressive, featuring strong extension and a well-balanced presentation of treble characteristics that won't cause fatigue. CA-1a is sometimes reminiscent of planar headphones, particularly in the bass, but it still retains the vivid imaging, wide soundstage, and crazy good resolution associated with electrostatic headphones. And in terms of detail, transient response and spaciousness, the CA-1a is one of the best in its class.

(Specifications and appearance of this product are subject to change without notice)
↓ Details provided by RAAL-requisite


  • The CA-1a is a circumaural version of Rall's landmark SR1a open baffle ribbon headphone.
  • Unparalleled accuracy and realism in a soundfield devoid of room acoustics.
  • Reveal more detail and accuracy than pro studios.
  • Sonic experience akin to uber level stereo systems.
  • Hand made using carbon fiber, steel, aluminum.
  • Pro Audio heritage.

Headphone-only package ships with just CA-1a circumaural headphone, no cables or interface box included.

Standard Package ships with the CA-1a circumaural Ribbon Headphone and complete TI-1b package which includes:

  • TI-1b Transformer Interface
  • OB Compensation Barrel for Balanced XLR Amplifier Inputs
  • OB Compensation Barrel for Single-Ended RCA Amplifier Inputs
  • HPL Cable for connecting conventional 4-pin XLR headphone level amp output
  • SC2 Cable for connecting True-Ribbon headphones to TI-1b Interface

Both packages include a one year manufacturer warranty.

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