Ensemble, assemble!

Apos Ensembles are like the Avengers of audio gear—bundles assembled by our team  to save your ears from the forces of mediocre sound. Every piece of equipment plays its part to deliver an unbeatable listening experience: a DAC to decode the 1s and 0s, an amp to power up the audio, and all the interconnections necessary to bring the team together.

Meet the TOPPING-900 Series Ensemble

The Apos TOPPING-900 Ensemble is a bundle designed to provide you with a premium audio setup straight out of the box. 

For the DAC, you'll get the TOPPING D900 a 1-bit PSRM architecture decoder, featuring proprietary I/V conversion and wireless support with LDAC. It includes a 10-band parametric EQ, an independent pre-amp mode, and a machined aluminum remote control. 

For the amp, you'll get the TOPPING A900 Ultra-Flagship Headphone Amp, featuring the fully-balanced T'ang-ku-la amplifier circuit with 22,000mW per channel of output power. It supports both balanced and single-ended headphones with outputs including 4-pin XLR, 4.4 balanced, and 6.35mm SE. The amp also includes features like relay volume control, a preamp mode, and full-color display. 

Products in this bundle

TOPPING D900 DAC (DIGITAL-TO-ANALOG CONVERTER)

• Fully discrete 1-bit PSRM DAC architecture

• Self-developed I/V circuitry

• SNR: 131dB; DNR: 131dB

• Ultra-low jitter (-157dB)

• THD+N: <0.000055%

• 10-band PEQ with desktop software

• Aurora UI with full-color screen

• Bluetooth 5.1 with LDAC and aptX HD

• Preamp mode with volume memory

• 12V trigger in/out

• Inputs:  USB-C, USB-B, optical, coaxial, Bluetooth, AES, or IIS-LVDS

• Outputs: XLR balanced preamp, XLR balanced line out

TOPPING A900 Ultra-Flagship Headphone Amplifier

• Six-channel T’ang-ku-la circuit with patented three-stage feedback

• Fully balanced differential architecture

• 22,000mW x2 @16Ω output power

• THD+N <0.00003% across the band (90kBW)

• SNR/DNR up to 151dB

• Balanced relay-based volume control with 0.5dB steps

• Six headphone outputs: 6.35mm, 4.4mm, 4-pin XLR, dual 3-pin XLR

• Supports independent or simultaneous output configurations

• Preamp mode with balanced XLR outputs

• Full-color display with customizable modes and colors

• Premium Neutrik and Pentaconn connectors

• Isolated power supply for analog/digital circuits

• Precision-machined aluminum remote control

Apos Flow XLR Cable

• Imported Japanese copper conductor
• 4-core audio wire
• A copper lattice braid with 94% density effectively shields the conductor from electromagnetic interference
• Each core made of 60pcs of 0.08mm copper wire
• Neutrik terminations