Cayin RU6

The basic idea of an R2R ladder has 2 matched resistors at its core. The first one takes the name "R" and the other one "2R" which has the double value of R.

To achieve 24 bit decoding, 48 pieces of resistors (23xR and 25x2R) are needed for one channel for a total of 96 pieces for stereo.

R2R technology is known to provide a realistic and natural sound that offers a different experience for audiophiles.

To achieve this 24-bit decoding with R2R technology Cayin has selected resistors that can offer high precision while remaining stable to temperature changes.

• Non-Oversampling (no oversampling)
  
  • Maintains original sampling frequency in source bits
    
  • No digital filters, no post-processing, time-domain optimized, low phase distortion and jitter, no ringing artifacts
    
  • Musical and vivid sound, very natural, organic and coherent
    
• Oversampling (with oversampling)
  
  • Increase sample rate by interpolation before Digital-to-Analog conversion
    
  • Improved resolution, reduced noise and improved anti-aliasing, optimized in the frequency domain.
    
  • Impressive detail and extended frequency, clean and detailed presentation with full dark background.

R2R circuits are very demanding when it comes to data integrity, mobile digital volume controls can severely damage the sound.

Since the usual volume control options cannot reach high standards of accuracy, low noise and low power consumption Cayin have developed their own volume control using a discrete array of resistors.

The 0-99 volume steps are controlled by 9 segments of resistors and relays which meet transparency standards to maintain the natural sound signature of this R2R DAC.

• Volume buttons are also used to navigate through the menu
  
• 1" OLED display shows all settings clearly and with good visibility
  
• 3.5mm and 4.4mm balanced headphone output to suit your headphone collection

To minimize interference, the circuitry that makes up the Cayin RU6 is divided into two backplanes with the digital circuitry separated from the analog circuitry.

Safeguarding the integrity of the signal ensures that noise that may be created by the reference clock or DSP does not interfere with the amplifier circuitry.

The discrete R2R is a DAC circuit with very low power consumption when compared to other integrated chipset DACs, minimizing power drain from the cell phone acting as the source.

As a connection, an interference shielded USB-C connector is used making it compatible with a wide range of mobiles, computers and players.

The Cayin RU6 is compatible with:

• iOS and iPadOS
  
• MAC computers
  
• Windows 7, 8 and 10 computers
  
• Android phones and tablets
  
• Hi-Res players

• PCM: Support up to 384kHz
  
• DSD: Support for DSD64/128/256
  

Allows you to select the gain between low and high to make it compatible with high sensitivity In Ear headphones.

With its weight of only 28g and its very compact size, it fits in any pocket.