Sendy Audio’s Apollo Pro advances its reputation with a polished, comfortable design and a warm, natural sound profile, offering a compelling option in the crowded open-back headphone segment.
Sendy Audio’s Apollo Pro arrives as a more polished follow-up to the original Apollo, and the company is clearly aiming to move beyond being judged only on looks. The Chinese headphone maker, a sister brand to SIVGA, has built a reputation for striking materials and ambitious tuning, but the open-back planar magnetic segment is now crowded with established names such as HiFiMAN, Meze Audio, Dan Clark Audio and Audeze. In that context, the Apollo Pro needs to offer more than fine woodwork and a handsome shape. According to the review, it does.
The hardware helps. The Apollo Pro uses a 78mm planar magnetic driver with a nano-scale composite diaphragm, a specification that other recent coverage says is paired with a conductive layer applied for precision and speed. Its build combines zebrawood earcups with CNC-machined aluminium parts, a spring-steel suspension headband and lamb leather contact points. At 354 grams, it is not featherweight, but the review describes the fit as notably comfortable, with soft, well-shaped pads and a clamp that stays easy over long sessions. The cable package is also unusually generous, with a thick balanced lead, adapters and a compact carry case.
Sound is where the retuning matters most. The Apollo Pro is presented as a warm, relaxed headphone with a mid-bass lift, a smooth lower midrange and a restrained but clean treble. That gives music more body than air, while still preserving the speed and separation often associated with planar designs. The review says the headphone avoids the sharpness and tonal stiffness that can make some planars fatiguing, which makes it easier to listen to at higher volumes. It also means cymbals, hi-hats and other high-frequency details sit a little further back in the mix than they would on a brighter headphone.
That balance seems to be the Apollo Pro’s defining strength and its main limitation. Midrange texture is highlighted as a particular virtue, with vocals and instruments carrying a full, organic character, while bass notes are described as quick, controlled and satisfyingly weighty. Still, the sub-bass does not fully satisfy listeners seeking strong rumble, especially in electronic music, and dense or already warm recordings can sound thick. In direct comparison, the review finds the Meze 105 AER brighter and airier, while the THIEAudio Cypher is more reference-like and open. The Apollo Pro, by contrast, leans into richness and comfort rather than neutrality.
That makes the headphone less universal than some rivals, but also more distinctive. Other recent reviews have reached a similar conclusion, describing it as a premium-feeling open-back model with controlled bass, natural vocals and a spacious presentation suited to home listening. Priced at $449, it is positioned as a serious mid-to-upper-tier option for buyers who value materials, ergonomics and a warmer tonal balance. For listeners who want a smooth, full-bodied planar headphone with strong build quality, the Apollo Pro appears to make a convincing case.
Disclaimer: This content is intended for informational purposes only. Readers are advised to exercise their own judgement, conduct due diligence, or consult a qualified expert before acting on any information provided.
