Sendy Audio has announced the launch of the new Apollo PRO - a premium open-back planar magnetic headphone that combines advanced nano-diaphragm technology, refined craftsmanship and a lightweight design for a more comfortable high-end listening experience.
Designed for listeners who want detail, openness and musicality, Apollo PRO will be available on 2nd June from Amazon and selected retailers worldwide at £449 / $449 / €499.
Nano-diaphragm planar driver technology
At the heart of Apollo PRO is a custom 78mm planar magnetic driver. The nano-scale composite diaphragm measures less than 800 nanometres thick and is designed to improve response speed, clarity and overall resolution - helping deliver a fast, spacious and highly detailed presentation across music, films and gaming.
Apollo PRO also incorporates Sendy Audio’s exclusive Electron Beam Evaporation Deposition technology, which precisely coats aluminium circuitry directly onto the diaphragm surface. This process improves vibration control and frequency consistency, contributing to clearer layering and a more refined overall listening experience.
Lightweight design built for longer listening
Weighing just 354g, Apollo PRO has been engineered to deliver the scale and openness planar magnetic headphones are known for in a lighter and more comfortable design suited to extended listening sessions.
The open-back design is paired with refined zebrawood earcups and a distinctive sunburst-pattern metal mesh, combining acoustic performance with a clean, contemporary aesthetic. Soft breathable velvet ear pads and a premium lamb leather headband are designed to reduce heat build-up and listening fatigue during extended sessions.
Precision CNC-machined aviation-grade aluminium components and a flexible adjustment system allow Apollo PRO to adapt naturally to the listener for a more comfortable and secure fit.
Premium cable and balanced connectivity
Included with Apollo PRO is a detachable balanced cable constructed using Furukawa OFC, silver-plated copper and enamelled gold-plated copper. Combined with a graphene-reinforced shielding structure, the cable is designed to help maintain stable, interference-free signal transmission while enhancing overall sonic detail and clarity.
Apollo PRO also includes a 4.4mm balanced cable alongside 3.5mm and 6.35mm adaptors, allowing it to integrate easily into a wide range of portable and desktop listening setups.
Key Features
· Open-back planar magnetic headphone design
· Custom 78mm planar magnetic driver
· Nano-scale composite diaphragm under 800nm thickness
· Lightweight 354g construction
· Zebrawood earcups with sunburst metal mesh detailing
· Premium detachable balanced cable included
· Breathable velvet ear pads and lamb leather headband
· Frequency response: 20Hz – 40kHz