Topping E50 II – Compact Hi-res Audio DAC with AK4497S and LDAC

Topping has steadily built a reputation for delivering compact digital audio components that appeal to both traditional HiFi users and those who rely on high-quality PC audio. The new Topping E50 II continues this direction by combining a high-performance AK4497S-based signal path with updated input handling, a built-in parametric EQ and refined app control. As a result, it targets an unusually broad spectrum of applications—from music playback in a living-room system to audio monitoring at a desktop workstation.

Key Facts

• AK4497S DAC for high-resolution digital playback
• USB audio support up to Linear PCM 32 Bit and 768 kHz, DSD up to DSD512
• LDAC and aptX family codecs for high-quality Bluetooth transmission
• 10-band parametric EQ with channel-separate adjustment
• Automatic S/PDIF/ADAT detection at the optical input
• Control and configuration via the Topping Home app
• Cinch and balanced 6,3 mm stereo output connections
• Switchable DAC Mode and Preamp Mode
• Price € 199,-

Modern Digital Architecture with AK4497S

At the core of the Topping E50 II lies AKM’s AK4497S, a DAC known for its refined and natural sound signature. Over USB, the unit handles Linear PCM up to 32 Bit und 768 kHz as well as DSD up to DSD512. The digital interface is based on the XMOS XU316, ensuring stable processing and low-latency operation even when used with demanding audio software.

Digital Signal Management with TopSync

Topping combines an internally developed FPGA-based processing stage with a PLL-based clock generation system, a concept the company refers to as the TopSync architecture. The goal is to reduce timing irregularities in digital signals, a process Topping describes as achieving JitterNull performance. For users, this translates into consistently clean signal handling regardless of whether the source is USB or one of the digital inputs.

Optical Input with Automatic ADAT Detection

A notable feature, particularly for small production environments or musicians, is the automatic distinction between S/PDIF and ADAT at the optical input. The E50 II recognises incoming formats on its own and switches modes without manual intervention. This expands its usability beyond the classic HiFi domain, making it a flexible tool for compact studio setups.

Parametric EQ and App-based Control

The integrated 10-band PEQ allows users to tailor playback to personal preferences or to compensate for room-related effects in nearfield setups. Adjustments are made via the Topping Home app, which also provides input selection and volume control. In everyday use – particularly at a desk – this adds a layer of convenience normally associated with far more expensive devices.

Flexible Analogue Output Stage

The Topping E50 II offers both Cinch connectors and a balanced 6,3 mm stereo output, both of which can be used simultaneously. This dual-output design allows the DAC to feed a HiFi amplifier and a pair of active monitors without additional switching hardware. Users can select between a fixed-level DAC Mode or a variable Preamp Mode depending on their system layout.

Bluetooth with LDAC and aptX Family

In addition to its wired digital interfaces, the E50 II includes a Bluetooth module supporting SBC, AAC, aptX, aptX HD, aptX Adaptive and LDAC. This makes it possible to stream content in comparatively high quality from mobile devices, offering an easy alternative when immediate convenience is required.

Price and Availability

The Topping E50 II is available immediately at a price of € 199,-. It is offered in black, silver and white finishes, with the front panel consistently executed in black across all variants.

Conclusion

The Topping E50 II illustrates how flexible a modern compact DAC can be at this price point. With support for high-resolution formats, intelligent optical input handling, integrated EQ and app control, it serves both HiFi enthusiasts and users who rely on accurate nearfield monitoring. Its compact form factor and broad feature set make it suitable for a surprising variety of system configurations.

Technical Specifications