audio-sound @ hatena

An audio review & news blog. The volume should not exceed 80 dB is recommended. I usually adhere to the safe-listening style by WHO. Please note that my aural impressions and interpretations of measurements are also made from a safe-listening style.

(News) Reecho SG-01 OVA: Popular entry-level Chinese IEMs are back with upgraded cables!

Reecho SG-01 OVA

Reecho SG-01 OVA


Reecho, a popular Chinese IEM brand, has released the Reecho SG-01 OVA, a repackaged model of its entry-level Reecho SG-01 IEMs with a new cable.



  • Ergonomic design, abrasion-resistant coating, durability and comfort
  • Lightweight and strong zinc alloy acoustic cavity, clear outline and elegant style
  • Cable upgrade from the original, more flexible and easier to handle



  • Driver: 10mm N52 graphene composite diaphragm
  • Cable: 5N 96-core sliver-plated OCC cable
  • Playback frequency range: 20 Hz to 20 kHz
  • Impedance: 32Q
  • Sensitivity: 112dB*2dB
  • THD: <2% at 1kHz
  • Connector: 2-pin 0.78mm
  • Cable length: 120 cm
  • Plug: 3.5mm gold-plated

Sound balance aimed at something more universal

Based on Chinese review, it appears that Reecho SG-01 OVA has not only upgraded the cable, but also changed the thickness of the drivers. The sound balance may have been altered as a result. The article states that there is an improvement in the high frequencies and increased resolution compared to the SG-01.


Unfortunately, this review article does not provide any data to support its claims, and the review is based entirely on auditory impressions, so it is unclear whether the tuning has really been changed. However, we can say that the reviewer seems to be quite satisfied with the results.

Price & Availability

Reecho SG-01 OVA is now available on Aliexpress and elsewhere for $39.


Reecho SG-01 OVA

Reecho SG-01 OVA
Reecho SG-01 OVA