Sendy Apollo

Sendy Apollo main

On their very own, the Apollo provide a pleasantly partaking and heat sound. Mixed with a DAC/headphone amplifier, these open-backed cans fulfil extra of their potential.


  • Heat, nice sound
  • Nice aesthetics
  • Very snug


  • Amplification will get extra efficiency from them


  • UKRRP: £459
  • USARRP: $499
  • EuropeRRP: €549
  • CanadaRRP: CA$709
  • AustraliaRRP: AU$809

Key Options

  • Planar magnetic driversOptions 68mm transducers to supply sound

  • Removable earpadsEarpads will be indifferent and changed


Sendy Audio is the sister model of Chinese language hi-fi outfit Sivga, they usually share the ambition of manufacturing high-quality cans that supply an audiophile listening expertise.

The Apollo open-backed cans are the primary headphones we’ve examined from Sendy, and the expectation is that they’ll comply with within the footsteps of the P-II and Robin SV021 fashions, delivering a heat presentation and aesthetically pleasing seems.

They’re additionally the most costly mannequin we’ve checked out from both Sivga and Sendy, which raises these expectations additional and poses the query as to whether or not they’ll be capable of meet them. Let’s discover out.


  • Terrific look and building
  • Glorious consolation
  • Use goat’s leather-based in headband

The Apollo are flat-out beautiful in look. Handcrafted on the Sendy manufacturing unit, using rosewood emphasises that pure handmade really feel; the shiny end is a stunner, with no imperfections or nicks on the overview pattern. The Apollo look nice and really feel nice to the touch, and that’s a part of the rationale that folks get pleasure from hi-fi so.

Sendy Apollo headphones in case

They’re additionally beautiful to put on. The dimensions of the earcups and padding makes them greatest suited to greater heads – smaller ones could really feel swamped by their measurement. The hinges enable some scope for attaining the very best match, however I don’t suppose you’ll have a lot hassle there. The earcups merely swaddle your ears in high-protein padding.

At 385g, they weigh lower than the P-II, and the earpad cushions that softly press in opposition to the pinnacle solely change into somewhat heat throughout use. The cans do really feel unfastened at first, however the headband will be adjusted up or down to suit. Talking of which…

Sendy Apollo leather headband

The scarf is made out of gentle and pliable goat’s leather-based, with any stress on the pinnacle barely noticeable – glorious for prolonged use; though vegans ought to in all probability give these headphones a swerve. Left and proper earcups are denoted not simply by the markings on the hinges however contained in the earpads, too.

The open-back mesh housing encompasses a putting daylight design, a reference to Greek God of the Solar (and music), Apollo. The dotted membrane has each aesthetic and acoustic functions, the association of every gap stated to affect the tuning of the headphone’s sound. It’s additionally price remembering that as an open design, the headphones do leak sound.

Sendy Apollo hard case

Accompanying the headphones is a pear-shaped leather-based case for storage. It isn’t notably moveable – positioned in a rucksack, it’s like a bag inside a bag – nevertheless it definitely isn’t the most important carry case I’ve encountered (that may be the one for the Monolith M1070). Inside is a hemp case for carrying the cable and connectors; a 4.4mm balanced effort with 3.5mm adapter. The cable connection on the Apollo is slanted at an angle to keep away from draping over the shoulder when in use.

One different facet to notice is that the earpads are removable and will be changed ought to they change into broken.


  • Low impendence
  • Vast frequency vary
  • Planar magnetic drivers

The Sendy Apollo don’t include options in abundance, as you’d discover with a wi-fi equal. Rattling by them, impendence is rated at 16-ohms, which is way lower than the Sivga P-II or the Grado SR325x on-ears. A determine that low makes them simple to drive but additionally means that amplification is required since with out it the quantity the headphones will output at is low (until you nudge the quantity up in your supply gadget).

Frequency response is 20Hz to 40kHz, which covers the Hello-Res Audio customary. You probably have a) the required content material and b) a supply able to enjoying that content material, the Apollo ought to be capable of do the remainder. Sensitivity is 95dB.

Sendy Apollo hinge detail shot

The driving force is planar magnetic. In ye olde days when planar know-how was first launched, it was massive and heavy, leading to headphones that had been additionally massive and heavy. The know-how has superior to the purpose the place it has change into each smaller and lighter, utilized in wired headphones with ambitions of being as moveable as their wi-fi cousins.

Sendy Apollo rosewood finish earpads

The Apollo sport a 68mm massive diaphragm transducer for its planar driver, and Sendy refers to using Quad Former know-how in its description of the design. It makes use of two magnets subsequent to a double-coil association both aspect of the diaphragm within the center. Sendy claims this provides “glorious” electroacoustic power effectivity, extraordinarily low distortion, and ups the Apollo’s potential to breed music.

The removable 6N OCC braided cable is 2m in size (one other signal these wouldn’t be greatest for moveable use), and Sendy says the cable provides no sign loss in transmission. It additionally doesn’t change into too tangled – and when it does, it’s simple to unpick, which provides a couple of factors within the comfort stakes.

Sound High quality

  • Heat soundstage with first rate width
  • Clean vocal efficiency
  • Not essentially the most dynamic of performers

Having put the Apollo by the really helpful 100 hours of burn-in earlier than listening, the low impendence has been a slight trigger for concern over the course of utilizing them. I’ve plugged them into moveable music gamers and programs and have at all times needed to push up the quantity considerably. For those who’re within the Apollo, it’s a certainty that you simply’ll want amplification akin to a DAC to get the very best from them.

Sendy Apollo on its side

By way of expectations, the Apollo do meet what Sendy has requested of them. Listening to them reveals a soft-sounding and heat presentation that’s pleasantly lush at occasions. They’re, nonetheless, easy-going headphones to a fault.

Plugged right into a supply, the very first thing I needed to do was elevate the quantity – they’ll sound shy and reticent off the bat. As soon as a degree has been discovered, the Apollo hand over a level of definition, punchiness and sharpness to a pair like Grado’s SR325x on-ears.

This isn’t a like-for-like comparability, after all – open-backed over-ears vs open-backed on-ears – however listening to the identical tracks, the Grados provide extra dynamism, higher expression and definition to devices. However, the Sendy heaphones’ heat make bass sound gentle, they usually’re not as ready to pick devices with as a lot readability and provides them their very own distinctly etched house inside a soundstage.

Sendy Apollo hard case detail

Nevertheless, give the Apollo a high-quality monitor and its attributes come to the fore slightly properly. A 24-bit/192kHz file of Coldplay’s God Put A Smile Upon Your Face on an Astell & Kern SR25, and the Apollo ship Chris Martin’s voice with an inviting softness and heat, capturing the modifications within the pitch of his voice superb sufficient and lengthening the soundstage with width. Nevertheless, I observed that the repeated drumbeat wasn’t delivered with a lot of a kick, and though the soundstage is extensive, the sense of depth to music isn’t fairly felt.

Regardless of this, the Apollo are a constantly nice hear. Fleetwood Mac’s The Chain (24-bit/96kHz) shows a good quantity of vigour and power within the latter half of the monitor; there’s stable definition to Lindsey Buckingham’s Dobro guitar, in addition to good, vivid texture to devices and affordable quantity of perception that’s married to a good sense of timing – though, as talked about, extra definition and sharpness would assist.

Sendy Apollo earpad cushion

Used with a laptop computer and an EarMen Eagle DAC, there’s extra to be gained when it comes to readability, element and definition. The Apollo + Eagle mixture renders devices extra distinctly, increasing the soundstage even additional, giving bass a firmer basis in addition to a punch in some extra power and pleasure.

On their very own, there’s first rate sufficient brightness reaped from Takuya Kuroda’s Fade (16-bit/44.1khz), however extra is elicited with the Eagle DAC for a richer, expressive and dynamic efficiency. Add a DAC to those headphones and also you’ve bought a successful mixture; with out one, the Apollo stay a stable and nice hear.

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Do you have to purchase it?

For the nice and cozy presentation and glorious seems Aesthetically, the look of the Sendy Apollo is nice, they’re snug to put on, and for those who get pleasure from a heat hug of a sound you then’ll seemingly discover these interesting.

You’ll want a DAC to get the very best out of them The low impedance makes them simple to drive with amplification and including a DAC to your setup will reap higher efficiency.

Remaining Ideas

The Sendy Apollo produce a gentle, lush and heat presentation, nevertheless it’s an strategy that leaves them brief in a couple of areas – specifically definition and dynamism. For budding audiophiles, the Apollo could also be a pair that can make you conscious of the function headphone amplification and high-quality sources play in a hi-fi setup.

On their very own, the Apollo are a pleasurable listening expertise, though I’m at all times struck by the sensation I might be getting extra from the music to which I’m listening. Pair these headphones with a DAC, and it helps the Apollo realise extra of their potential.

Trusted Rating










How we check

We check each headphones we overview totally over an prolonged time period. We use business customary checks to check options correctly. We’ll at all times inform you what we discover. We by no means, ever, settle for cash to overview a product.

Discover out extra about how we check in our ethics coverage.

Examined over a number of weeks

Examined with a spread music recordsdata and streaming companies

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What connectors does the Sendy Apollo over-ear include?

The Apollo headphones are equipped with a 4.4mm balanced cable with a 3.5mm

Full specs

IP score
Launch Date
Driver (s)
Frequency Vary
Headphone Sort

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