ddHiFi's TC44Pro E2 DAC/Amp Dongle Boosts Your iPhone, iPad, or Android's Audio Quality With Plenty of Power Dual CS43131 DAC chips and ES9603Q op-amps for superior audio Supports high-res PCM up to 32bit/384kHz and native DSD up to DSD256 Balanced 4.4mm output with 250mW power at 32Ω Low THD+N (<0.0004%) and excellent dynamic range (>120dB) Compact and portable design with PCM and DSD status indicator The "Eye," 2nd Generation ddHiFi's TC44Pro E2 is a wired USB DAC amplifier dongle with a unique eye-shaped design and a single interface. Its 2nd gen “Eye” cable strands feature pure, premium 07 series Silver-shielded conductors, offering durability, high resolution, and detailed audio performance. Tuning + High Power TC44Pro E2 uses x2 CS43131 decoding chips and x2 ES9603Q independent operational amplifiers. The chip's nominal power is more than that of TC44Pro, and the output amplitude is limited to 80% to ensure overall listening comfort. Premium Materials for Premium Sound The socket is equipped with a Pentaconn 4.4mm plug from NDICs, paired with a circuit board crafted through a double-layer stacking method. It is manually assembled using lead-free solder with 3% Silver content. To enhance durability and aesthetics, the socket’s top is reinforced with a metal ring, offering both protection and an elegant design. DIY Leather A simple adjustment can create a shorter appearance, while the combination of cowhide rope and a metal shell offers an aesthetically pleasing look. Along with the pre-tied leather rope, the package includes a 11.8" leather rope. Scanning the QR code on the packaging yields assistance with creating your own “snake knot.” Status Indicator LED TC44Pro E2 supports up to DSD256 native DSD decoding. There is a subtle LED on the unit to indicate playback mode: Blue: PCM output Green: native DSD decoding output Specifications DAC: Dual CS43131 Op-Amp: Dual ES9603Q Output Power: 250mW @32Ω SNR: >125dB (A-wt) Dynamic Range: >120dB (A-wt) THD+N: ≤ 0.0004 % @1kHz PCM Decoding: Up to 32bit/384kHz DSD Decoding: Native DSD64/DSD128/DSD256 Status Indicator: Blue (PCM) | Green (DSD) Dimensions: 60mm × 20mm × 10mm Cable Length: 3.54" Weight: About 21g