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The Topping E50 II, an evolution of the E50, is a DAC that offers excellent performance thanks to meticulously selected components. It also features a number of improvements in terms of functionality compared to its little brother. The E50 II benefits from an AK4497S chip coupled with an XMOS XU316 interface, enabling it to support high-resolution sampling rates up to 32bit 768kHz PCM and DSD512 while maintaining a THD+N of just 0.0001% and offering a dynamic range of up to 131dB. Bluetooth allows the E50 II to support high-resolution codecs up to LDAC for flawless wireless reception and superior audio quality. In addition to Bluetooth, other improvements include support for ADAT, the Topping Home app, and a 10-band PEQ function for precise sound adjustment. In terms of connectivity, it has all the essentials with several digital inputs and two analog stereo outputs, one RCA and the second a balanced 6.35mm TRS jack.


The AKM AK4497S stereo DAC chip based on VELVETSOUND technology enables the E50 II to deliver exceptional performance. Notably, a THD+N of 0.0001% @ 1kHz and an SNR of up to 131dB.

The XMOS USB interface allows the E50 II to support high-definition sampling rates up to PCM 32-bit 768kHz and DSD512.

An FPGA chip automatically recognizes SPDIF or ADAT signals and processes both formats for greater versatility.
The Topping E50 II features a Qualcomm QCC5125 Bluetooth chip, allowing it to receive SBC, AAC, aptX, aptX Adaptive, aptX HD, and LDAC codecs. This means you can enjoy wireless listening at up to 24-bit 96kHz for the most enjoyable listening experience.


A preamplification mode allows the Topping E50 II to be connected directly to a power amplifier or active speakers while offering precise volume control via the included infrared remote control.
The E50 II's independent output stage offers different output levels to suit any type of amplifier, whether it be a headphone amplifier, a power amplifier, or even active speakers. Its different output levels help prevent problems such as overloads or insufficient power.
| Output level of the E50 II | ||
|---|---|---|
| Unbalanced output | Balanced output | |
| High power output | 5.6Vrms | 11.3Vrms (23.2dBu) |
| Low output power | 2.6Vrms | 5.3Vrms (16.7dBu) |

The Topping E50 II DAC is compatible with the Topping Home app for remote control via smartphone, but it also supports 10-band equalization to tailor the sound to the genre of music being played or the user's preferences.


| 1 | Balanced output on 6.35mm jack (TRS) |
| 2 | Unbalanced stereo RCA output |
| 3 | Coaxial input |
| 4 | Toslink optical output |
| 5 | Bluetooth antenna |
| 6 | USB-C input |
| 7 | Power supply via USB-C |
Technical characteristics
| Specifications | |
|---|---|
| Product type | DAC |
| DAC chip | AK4497S |
| USB interface | XMOS XU316 |
| Bluetooth chip | Qualcomm QCC5125 |
| Inputs | 1x USB-C 1x Toslink optical 1x Coaxial Bluetooth |
| Outputs | 1x Balanced 6.35mm TRS jack output 1x RCA output |
| Supported sample rates | PCM up to 32bit 768kHz DSD up to DSD512 |
| Supported Bluetooth codecs | SBC, AAC, aptX, aptX Adaptive, aptX HD, LDAC |
| RCA output specification | |
|---|---|
| THD+N (A-WT) | 0.0001% @ 1kHz |
| THD No-WT 90kBw | 0.0005% @ 20-20kHz |
| SINAD (A-WT) | 120dB @ 1kHz |
| SNR (A-WT) | 124dB @ 1kHz U-L 130dB @ 1kHz U-H |
| Frequency response | 20Hz-20kHz (±0.1dB) 20Hz-40kHz (±0.3dB) |
| Output level (@PCM) | 2.6Vrms/10.7dBu @ 0dBFS, U-L, m-p/d 5.6Vrms/17.2dBu @ 0dBFS, U-H, m-p/d |
| Output level (@DSD) | 2.6Vrms/10.7dBu @ 0dBFS, U-L, m-p 5.6Vrms/17.2dBu @ 0dBFS, U-H, m-p 3.8Vrms/13.7dBu @ 0dBFS, U-L/H, m-d |
| Noise A-WT | 1.7uVrms |
| Channel separation | -130dB @ 1kHz |
| Channel balance | 0.3dB |
| Output impedance | 50 Ohms |
| Output coupling | AC |
| DC output configuration | 1mVrms |
| Balanced 6.35mm jack output specification | |
|---|---|
| THD+N (A-WT) | 0.0001% @ 1kHz |
| THD No-WT 90kBw | 0.0002% @ 20-20kHz |
| SINAD (A-WT) | 120dB @ 1kHz |
| SNR (A-WT) | 125dB @1kHz U-L 131dB @1kHz U-H |
| Frequency response | 20Hz-20kHz (±0.1dB) 20Hz-40kHz (±0.3dB) |
| Output level (@PCM) | 5.3Vrms/10.7dBu @0dBFS, U-L, m-p/d 11.3Vrms/17.2dBu @0dBFS, U-H, m-p/d |
| Output level (@DSD) | 5.3Vrms/10.7dBu @0dBFS, U-L, m-p 11.3Vrms/17.2dBu @0dBFS, U-H, m-p 7.5Vrms/13.7dBu @0dBFS, U-L/H, m-d |
| Noise A-WT | 3.0uVrms |
| Channel separation | -130dB @ 1kHz |
| Channel balance | 0.3dB |
| Output impedance | 100 Ohms |
| Output coupling | AC |
| DC output configuration | 1mVrms |
| General | |
|---|---|
| Power supply | 5V via USB-C |
| Dimensions | 15.5 x 12.9 x 4.1cm |
| Weight | 465g |
| Color | Silver |
| Package | 1x Topping E50 II DAC 1x USB-A to USB-C cable 1x USB-C cable 1x Bluetooth antenna |

| Input | SPDIF |
| Input | USB |
| Input | Optical |
| Output | RCA |
| Output | Jack 6.35mm |
| DAC / ADC Chip | AK4497SVQ |
| Max sampling rate | DSD512 |
| Max sampling rate | 768kHz |
| Color | Silver |
| Class | N/A |
| Networking | No |
| Remote Control | Yes |