Short answer: the Audio-Technica ATH-AD500X, though neither ranks well in its class. It ranks #406 of 481 over-ear headphones by sound quality, rated 2.6/5, at $118.90; the Sivga Audio Robin ranks #436, rated 2.3/5, and costs $149, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 481 over-ear headphones; for better sound, the HIFIMAN HE400se ranks #23 at $109.
The Audio-Technica ATH-AD500X is the better-sounding option. The open-back design gives a spacious, airy presentation, and the 48 ohm impedance with 100 dB sensitivity works directly from a phone or laptop. The tradeoff: Treble from 6 to 10 kHz is about 9 dB below target and a 16 dB dip near 7.2 kHz removes cymbal and sibilance detail, so the sound is dark and veiled.
Why pick the Sivga Audio Robin: Bass is lifted about 9.1 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. The tradeoff: An 11.2 dB peak near 11.9 kHz can make cymbals and sibilance sound sharp.
Buy the Audio-Technica ATH-AD500X. It is rated higher for sound quality than the Sivga Audio Robin and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Headphones rankings cover every ranked option.
The open-back design gives a spacious, airy presentation, and the 48 ohm impedance with 100 dB sensitivity works directly from a phone or laptop.
Amazon $118.90 eBay
Bass is lifted about 9.1 dB with extension to 20 Hz, giving kick drums and bass lines extra weight.
Amazon $149.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Audio-Technica ATH-AD500X | Sivga Audio Robin | |
|---|---|---|
| Price | $118.90 | $149.00 |
| Ranked | #406 of 481 in Over-Ear Headphones | #436 of 481 in Over-Ear Headphones |
| Form Factor | Over-ear | Over-ear |
| Harman Preference Score | 50 (measured by oratory1990, via AutoEQ) | 43 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 3.75 dB standard deviation | 3.87 dB standard deviation |
| Tonal Tilt | -1.10 (negative is warmer, positive brighter) | -1.44 (negative is warmer, positive brighter) |
| Sub-bass Extension | Falls 6 dB below target at 56 Hz (-10.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+6.2 dB at 30 Hz) |
| Connection | Wired | Wired |
| Back | Open | Closed |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 53mm dynamic | 1 x 50mm dynamic |
| Impedance | 48 ohms | 32 ohms |
| Sensitivity | 100 dB/mW | - |
| Weight | 0.5 lbs (235 g) | 0.6 lbs (275 g) |
| Frequency Response | 5Hz - 25kHz (Manufacturer specified) | 20Hz - 20kHz |
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