Ensemble, assemble!

Apos Ensembles are the Avengers of audio gear—bundles assembled by our team of audio dorks to save your ears from the forces of mediocre sound. Each bundle is like a squad of supers, with every piece of equipment playing 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-DX3 Pro+ Ensemble

The Apos TOPPING-DX3 Pro+ Ensemble is a bundle designed to provide you with a premium audio setup straight out of the box. At the heart of this ensemble is the TOPPING DX3 Pro+. Choose to pair it with one of the following headphones: 

The Apos Caspian Open-Back Headphone features 50mm Kennerton dynamic drivers for a vibrant, immersive sound with deep, controlled bass and clear midrange. It includes hand-stitched sheepskin ear pads, handmade oak ear cups, and a lightweight yet durable headband for comfortable, extended listening. The Caspian is designed to be driven without an amplifier and uses secure 4-pin mini-XLR connectors.

The HIFIMAN Sundara Planar Magnetic Headphones feature an ultra-thin diaphragm for detailed and lifelike audio reproduction, with a frequency response of 6Hz-75kHz. Constructed from lightweight aluminum, they offer durability and comfort for extended wear, weighing just 13.1 ounces. The headphones also include a hybrid headband design to prevent pressure points, making them ideal for long listening sessions.

Products in this bundle

TOPPING DX3 Pro+

• ESS ES9038Q2M DAC chip
• LDAC audio
• THD+N: 0.00015%
• DSD512
• PCM768kHz
• XMOS XU208
• Built-in NFC headphone amp
• Remote control

HIFIMAN Sundara

• Frequency Response: 6Hz - 75kHz 
• Impedance: 37 ohms 
• Sensitivity: 94db 
• Weight: 13.1oz (372g)
• Cable Length: 1.5m

• Headphone Connectors: 3.5mm 

Apos Caspian

• Fun-sounding, non-fatiguing for marathon sessions
• 50mm dynamic driver
• Open-back
• All-natural oak earcups sourced from the North Caucasus mountains
• Inch-deep sheepskin ear pads with acoustic memory-foam inner filling.
• Stainless steel yoke and headband
• Natural leather headband for all-day comfort 
• Aluminum alloy grille
• Graphene-coated multilayered composite membrane with variable thickness
• CCAW coil (aluminum core coated with oxygen-free copper)
• Internal litz wiring