Short answer: the BQEYZ Autumn. It ranks #567 of 1291 in-ear headphones by sound quality, rated 3.8/5, at $199; the Rumaudio Blues ranks #664, rated 3.7/5, at $199. The price gap is small enough that the sound-quality ranking should decide it.
Why pick the BQEYZ Autumn: The median of 11 hobbyist measurements gives it a solid Harman preference score of 71 with a 2.42 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The catch: Sub-bass is 4.4 dB short at 30 Hz, so deep bass lacks rumble.
What the Rumaudio Blues does well: An all balanced armature IEM with six drivers per side. The tradeoff: Bass sits about 2.0 dB below target, so it sounds lean.
Buy the BQEYZ Autumn. It is rated higher for sound quality than the Rumaudio Blues at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphones rankings.
The median of 11 hobbyist measurements gives it a solid Harman preference score of 71 with a 2.42 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
HiFiGo $199.00 eBay
An all balanced armature IEM with six drivers per side.
Shenzhenaudio $199.00 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| BQEYZ Autumn | Rumaudio Blues | |
|---|---|---|
| Price | $199.00 | $199.00 |
| Ranked | #567 of 1291 in In-Ear Headphones | #664 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 71 (median of 11 squig.link measurements, calibrated to AutoEQ) | 70 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.42 dB standard deviation | 2.43 dB standard deviation |
| Tonal Tilt | +0.05 (negative is warmer, positive brighter) | +0.25 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.4 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-4.7 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Balanced Armature |
| Drivers | 1 x 13mm dynamic | 6 x balanced armature |
| Impedance | 46 ohms | - |
| Sensitivity | 110 dB | - |
| Frequency Response | 7Hz - 40kHz (Manufacturer specified) | - |
| Built-in Microphone | No | - |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the BQEYZ Autumn from arn, bedrock, bryaudioreviews, fahryst, hbb, ianfann, nymz, precog, rg, riz and superreview; the Rumaudio Blues from audioamigo, bedrock, flare and soundcheck39, all via squig.link.
Related Headphone Comparisons
More worthwhile head-to-heads for BQEYZ Autumn: