Rumaudio is a new brand in the IEM niche (at least to my knowledge), and in this article, I review the Rumaudio Blues. The Blues has 6 balanced armature drivers per side and is priced at $199.
Disclaimer: This sample was provided by Linsoul for an honest review. All observations and opinions here are my own, based on my experience with the product.
Rumaudio Blues
Specifications
Driver: 6 Custom Balanced Armature Drivers
Sensitivity: 110dB
Impedance: 26Ω
Frequency Response: 20Hz – 20kHz
Connectors: 0.78mm 2-pin
Cable Jack: 3.5mm Single-ended
Inside the Box
- Rumaudio Blues IEM
- Detachable 0.78mm 2-pin cable
- 12* pairs of silicone eartips
- Zipper carrying case
Design
On the outside, the Rumaudio Blues might look ordinary at first, but a closer look reveals some quiet elegance. The faceplates have a smooth vignette, with edges fading into deep black before blending into a soft grey centre. The finish feels understated yet refined, with a subtly moody character.
The main body of the shells is glossy black resin, but what really makes them stand out is how they hug my ears. The fit is so comfortable they almost vanish, while still providing excellent passive noise reduction.
The included cable is a 4-strand braid of oxygen-free and silver-plated copper, wrapped in a glossy black sheath. It handles beautifully and stays completely free of microphonics. I also like the subtle red on the right connector, which makes telling left from right effortless.
Sound
Sources used for testing include the iFi ZEN DAC 3, Hiby R6 III 2025 and FiiO KA17. The Blues is easy to drive and very efficient, though being an all-BA IEM, it really benefits from a source with a low output impedance.
The Blues don’t try to be flashy, and that’s part of their charm. They have a balanced, confident sound that just works. Nothing leaps out to dominate the track, but everything feels like it’s in the right place, making music feel coherent and easy to follow.
Bass
The bass is clean and precise, with a gentle rumble in the sub-bass that gives low notes some weight without feeling heavy. Unlike most all-BA IEMs, the Blues manage to make their lows feel present and satisfying rather than weak. Kick drums hit with enough authority to feel real, but they never get in the way of the mids.
Midrange
Vocals and instruments sit naturally in the mix. Voices feel clear and articulate without being pushed forward, and guitars, pianos, and strings all keep their shape. There’s a subtle warmth that stops them from sounding brittle, but it doesn’t smear detail — each note feels distinct and grounded.
Treble
Treble has a gentle shimmer that adds life without making your ears ache. Cymbals have a soft sparkle, and the highs extend well without ever being harsh. It’s airy in a relaxed way — you notice it, but it doesn’t call attention to itself.
Soundstage & Technicalities
The soundstage is medium-wide, enough to place instruments clearly without exaggerating space. Sounds don’t blur together, and subtle textures come through naturally. It’s not a real holographic kind of presentation as the imaging is a little vague but in its place you get an organic cohesion.
Comparisons
ZiiGaat Luna
Verdict
The Rumaudio Blues don’t make a grand entrance; they just do their job well. Comfortable, well-built, and easy to drive, they combine a balanced sound with a fit that almost disappears once you put them on.
Everything feels cohesive, with a natural tonality that makes instruments and vocals feel properly placed and believable. The Blues won’t wow you with flashy highs or brain-melting lows, but what they offer is a dependable, enjoyable listen that suits most genres and moods. If you’re looking for an all-BA IEM with a warm tonality, the Blues are a solid option.