RHA CL1 Ceramic In-Ear Headphone

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Product Description


The CL1 by RHA is designed for use with headphone amplifiers or high powered DAPs and smartphones. The dual transducer configuration combines the precision CL Dynamic and dedicated high frequency ceramic plate driver for true-to-life sound. The ceramic plate driver controls high frequencies whilst the CL Dynamic transducer delivers unprecedented accuracy in bass and midrange frequencies.

In creating the CL1 Ceramic, RHA brings together two unique technologies. The ceramic plate transducer and the CL Dynamic driver collaborate for outstanding, high-resolution audio. The CL1's unique ceramic plate transducer operates and uses a technology that RHA refined for unprecedented control over high frequency and harmonic tone reproduction. The CL Dynamic transducer produces pure, accurate tones below 8kHz while the ceramic plate transducer generates enhanced harmonics in extended treble response. The CL1 augments the performance of RHA's CL Dynamic transducer with a dedicated high-frequency ceramic plate transducer for precision sound reproduction.

The ergonomic, high density housings of the CL1 are created using ceramic injection moulding, a complex seven stage process. This results in a striking, extremely durable in-ear headphone with low acoustic chamber resonance, eliminating distortion. The CL1 features a detachable cable system using custom, locking sMMCX connections for contact efficiency and durability. The CL1 is supplied with RHA’s silver core Ag4x balanced cable with 4pin Mini XLR termination for use with Dacamp L1, in addition to a braided high-purity OFC cable with 3.5mm and 6.35mm terminations.

The CL1 Ceramic is supplied with two cables. The Ag4x cable uses silver, a highly conductive metal, and is fully balanced; each channel, left and right, positive and negative, stays entirely separate from the the source device to transducer housings. This cable terminates in a 4-pin Mini XLR connection designed for use with the Dacamp L1. The high purity OFC cable is also channel separated to eliminate risk of cross channel interference, and features both 3.5mm and 6.35mm terminations for use with a wide range of audio equipment. Featuring fully mouldable over-ear hooks designed to hold the headphones in position with the cable running over and behind the ear. The tri-material design can be moulded to the exact contours of a user's ear to ensure a secure fit, and position the transducer housings for effective noise isolation.

Hands-on by GEDDEM


Additional Information

Additional Information

Product Specification
  • Drivers: CL Dynamic + Ceramic Plate
  • Frequency range: 16-45,000Hz
  • Impedance: 150 ohms
  • Sensitivity: 87dB
  • Rated/max power: 10/50mW
  • Weight: 14g (without cables)
  • Cable: Braided OFC (sMMCX-3.5mm), Ag4x (sMMCX-Mini XLR)
  • Connections: 3.5mm/6.35mm, 4-pin Mini XLR
  • Highlights
  • Ceramic plate transducer for high frequency precision above 8kHz.
  • CL Dynamic transducer provides unprecedented control and accuracy for bass and midrange frequencies.
  • Durable, injection moulded ceramic housings with low acoustic chamber resonance.
  • Supplied with 3.5mm/6.35mm OFC cable / Ag4x Mini XLR (4-pin) braided cables.
  • Custom, secure sMMCX connections prevent contact degradation.
  • Fully mouldable over-ear hooks provide comfort and noise isolation.
  • Supplied with silicone and Comply™ Foam ear tips in a variety of styles and sizes.
  • Protector case and stainless steel ear tip holder.
  • Three year warranty.
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