DD ddHiFi TC44Pro E3 Hi-Res DAC & AMP Adapter

Eye3 The 3rd-Gen Interchangeable Cable

Hi-Res DAC & AMP Adapter
The Most Compact Generation

The Eye series DAC & AMP adapters are designed with connecting cables, featuring interfaces on both ends and pursuing an extremely symmetrical product style. The TC44Pro E3 is the third-generation wired DAC product, embodying functional integration aesthetics through its exquisite design. Despite incorporating both 3.5mm and 4.4mm output jacks, a USB-C port, a DAC and amplification motherboard, and three additional control buttons, its final size is only about as large as a thumb, representing a 20% reduction in volume compared to the previous generation. This achieves a breakthrough in portability while expanding interface and functionality options.

The Energy Paradox in a Compact Form

The TC44Pro E3 packs immense power into its pocket-sized body. Driven by dual SGM8262-2 high-power amplifier chips at its core, it delivers an impressive 510mW output¡ªenough to effortlessly drive even some popular over-ear headphones, creating a striking contrast between its compact size and formidable power.

A Masterpiece of Performance and Energy Efficiency Balance

The Cirrus Logic CS43198 DAC chip redefines the audio experience with its multidimensional technological advantages. Equipped with a high dynamic range architecture and low-distortion circuit design, complemented by high channel isolation, it ensures pristine sound quality from the source. In terms of format compatibility, it supports high sample rate decoding, native DSD processing, and seamless format switching, adapting to diverse audio scenarios. Furthermore, the integration of advanced filtering technology and a low-power architecture balances performance and energy efficiency, providing a core solution for portable audio devices.

Expanded Connectivity C Dual 3.5mm + 4.4mm Ports

The TC44Pro E3 features an integrated dual-port design with both 3.5mm and 4.4mm outputs, offering greater flexibility for headphones / earphones pairing. In balanced decoding scenarios, the 4.4mm interface stands out as the preferred choice, delivering powerful drive and refined audio performance. Meanwhile, the return of the 3.5mm jack ensures compatibility not only with traditional headphones / earphones, but also with instruments and audio equipment, broadening its application range. Through an optimized spatial layout, the new design achieves a more compact form factor despite the additional port, perfectly balancing functional expansion and portability.

Independent Volume Control & Gain Switch

Designed with ergonomics in mind, the TC44Pro E3 features three front-facing buttons that allow for effortless one-handed operation. The volume up/down buttons are intuitively sized for easy blind adjustment, while the less frequently used gain switch is strategically placed at a slight distance to prevent accidental toggling.

Indicator Lights

The Eye3's indicator lights are positioned on the back to prevent discomfort from direct light exposure during nighttime use.

Blue: Represents PCM decoding output.

Green: Indicates native DSD decoding output*.

Yellow: Signifies high-gain mode is active.

*When playing DSD files on an Android phone, first enable USB exclusive mode in the app, then set the DSD output to "Native."

Items Included in the Package:

• TC44Pro E3
• Standard Cable TC03SS (USB-C dual-OTG straight-plug cable with a length of 8cm)

Specifications

Plug: USB-C OTG

Jacks: 4.4mm Balanced + 3.5mm Single-Ended

DAC Chips: Dual Cirrus Logic CS43198

AMP Chips: Dual SGM8262-2

Volume Control: 60-step adjustment

3.5mm Single-Ended (High-gain mode, 32Ω Load)

Output Power: ≥175mW

Output Voltage: 2.35Vrms

4.4mm Balanced (High-gain mode, 32Ω Load)

Output Power: ≥510mW

Output Voltage: 4Vrms

SNR: ≥123dB

Dynamic Range: ≥120dB

THD+N: ≤0.0004%

PCM Decoding Support: Up to 32bit/384kHz

DSD Decoding Support: Native DSD64 / DSD128 / DSD256

Dimensions (mm): 44.3 x 17.5 x 11.6

Weight: 13.6g