SENDY AUDIO / Apollo

The Apollo uses natural solid rosewood for the headphone housing, which gives off a beautiful luster. It is an open-type headphone equipped with a planar magnetic driver, which is the brand's entry model, and uses a 68mm large-diameter diaphragm and unique QUAD-FORMER technology to achieve a lightweight and comfortable fit.

■[Warmth of the Sun] Open-type headphones that are the brand entry model
・Apollo is a brand entry model developed to allow more users to experience the excellent fitting, pure sound, and craftsmanship that are the brand identity of SENDY AUDIO. [Warmth of the Sun] Apollo is an open-type headphone that is lightweight and comfortable to wear, and has a design and sound that makes you feel the warmth of the sun.

■Planar magnetic driver with a 68mm large-diameter diaphragm made of ultra-thin, high-rigidity composite film
・Apollo is equipped with a planar magnetic (planar magnetic field) driver that has low distortion over a wide frequency range. The diaphragm uses a 68mm large-diameter diaphragm made of ultra-thin, high-rigidity composite film. This achieves natural vocals, deep and solid bass, bright treble with clear details, and a transparent and clean sound stage. The driver structure is designed with an optimal magnetic circuit and magnetic distance to balance the resonance. The composite membrane diaphragm's high internal damping base material achieves natural, soft vocals and solid bass. In addition, the ultra-thin, high-rigidity base material in charge of the high range can extend the playback frequency up to 40KHz, making the high range brighter and the details clearer, providing a relaxed and comfortable listening experience.

■ Unique QUAD-FORMER technology
・Apollo uses a unique QUAD-FORMER technology that consists of two coils on each side of the diaphragm, for a total of four coils. The planar magnetic driver consists of a double magnet, a double-sided coil on the diaphragm, and double coils on both sides of the diaphragm. The coils are well-balanced on the diaphragm. With two coils on each side of the diaphragm, the diaphragm has a total of four coils, and the diaphragm vibrates at the same frequency. The double-sided magnet exerts the same magnetic force in the field. QUAD-FORMER technology enables highly efficient electro-acoustic energy conversion, achieving ultra-low distortion, extremely high driver response, and excellent consistency.

■Natural solid wood "Rosewood" is used for the headphone housing

- The headphone housing is made of natural solid rosewood, which has a beautiful luster and is made using wood processing technology that is synonymous with the brand. High-quality rosewood processing includes precise CNC carving, sanding, polishing, painting, and natural drying. The surface is painted with a glossy finish to create a smooth and elegant look. The steel mesh of the housing cover, which resembles sunlight, uses black and nickel colors and reflects each other in clear layers. This mesh is not only decorative, but also has the effect of adjusting the acoustic characteristics by the special arrangement of each hole.

■Headband and ear pads that create an excellent fit

- The ergonomic headband part uses soft goat leather, which is light to wear and less tiring to wear for long periods of time. The ear pads are made of high protein leather and memory foam, and the bowl-like design reduces pressure on the ears while providing a soft and comfortable fit. In addition, L and R markings are applied on the inside to make it easy to distinguish between left and right. The ear pads are removable and can be easily and conveniently replaced.

■6N OCC 4-core cable and original carrying case
- The cable uses about 2m of 6N OCC 4-core Litz wire and adopts a 4.4mm balanced plug. Comes with a 4.4mm to 3.5mm conversion plug, an accessory bag made of linen cloth, and a robust original carrying case.

■Traditional hand-crafted wood processing
- SENDY AUDIO is committed to traditional hand-crafted production using wood. A lot of manpower and time are spent on the entire production process to select high-quality natural solid wood as materials. The process involves repeated wood selection, cutting, CNC carving, polishing, painting and air drying. Therefore, the grain and texture of the headphones are different for each unit. Due to the complex process, difficulty of processing, long manufacturing period, and scarcity of materials, we have no choice but to produce in small quantities, but we continue to work on manufacturing with all our heart and soul on each and every unit.

■Product name: Apollo
■Structure: Open type
■Type: Planar magnetic (planar magnetic field) type headphones
■Driver: Planar magnetic driver
■Diaphragm: 68mm ultra-thin composite membrane diaphragm
■Impedance: 16Ω
■Playback frequency range: 20 - 40,000 Hz
■Sensitivity: 95dB
■Weight: Approximately 395g (excluding cable)
■Cable: Approximately 2m 6N OCC 4-core Litz wire
■Headphone jack: 2.5mm x 2
■Plug: 4.4mm balanced
■Accessories: 2m detachable cable 4.4mm balanced plug, 4.4mm to 3.5mm conversion plug, linen accessory bag, original carrying case
■Warranty period: 1 year
■Country of manufacture: China