Apos Ensembles are equipment bundles that have been specially curated by our team of audio professionals. Just as an ensemble refers to a group of musicians playing together, each of our ensembles is a coordinated group of equipment that we’ve brought together to form a superior listening experience.

Meet the TOPPING-50s Series Ensemble

The TOPPING-50s Series Ensemble is a supergroup of performers. The Topping D50s DAC and the Topping A50s amp work in perfect harmony, decoding and driving music above a dizzyingly low noise floor. A TOPPING P50 power supply supplies ultra-quiet energy in a stackable aluminum chassis, while an Apos Flow RCA cable connects the DAC and Amp.

The TOPPING-50s Series Ensemble includes:

• DAC: Topping D50s DAC
• Amp: Topping A50s Headphone Amp
• Power Supply: TOPPING P50 Linear Power Supply
• Interconnection: Apos Flow RCA Cable

Spec Summary

Note: For full specs, please visit the individual product pages.

Topping D50s DAC

• Input: USB/OPT/COAX/BT
• Line Out: RCA
• USB In:
• 44.1kHz-768kHz/16bit-32bit
• DSD64-DSD512(Native)
• DSD64-DSD256(Dop)
• OPT/ COAX In: 44.1kHz-192kHz/16bit-24bit, DSD64(Dop)
• Bluetooth In: AAC/SBC/APTX/APTX LL/APTX HD/LDAC

Topping A50s Headphone Amp

• THD+N @1 kHz A-wt: <0.00007%
• SNR @MAX OUT 1 kHz A-wt: 144dB
• Frequency Response: 20Hz-200kHz(±0.05dB)
• Output Level: 42Vpp
• Channel Crosstalk @ 1kHz: -128dB
• Output Impedance: <0.1Ω
• Output Power THD+N<1%: 3.5Wx2@32Ω

Topping P50 Linear Power Supply

• Power Input: AC110V/AC220V 50Hz/60Hz
• Power Output: USB-A*2,DC(5.5/2.1)*1
• Power Supply Noise：<1mVrms
• Output Power:
• DC5V 1A*2
• DC15V 1A
• DC5V 1A*1+DC15V 0.9A
• DC5V 0.8A*2+DC15V 0.8A

Apos Flow RCA Cable

• ROXTONE black gold-plated lotus RF2C-BG male plug
• CANARE two-core audio cable L-2E5AT
• Number of conductors: 2
• Standard wire diameter: 5mm+0.5
• Conductor cross-sectional area: 0.31mm/23AWG
• Number of conductor copper wires: 12
• Conductor copper wire diameter: 0.18mm