Buyability: how good it is, what it costs, and whether it is still sold new.
A reference-oriented full balanced-armature IEM tuned in collaboration with Subtonic and built around Symphonium's TrueX 4-way crossover. It is positioned for both stage performance and listening on the go.
The Symphonium Audio Helios is a high-performance all-balanced-armature IEM that delivers exceptional bass, treble detail, and holographic imaging, making it a standout in its price range. However, it demands significant amplification and features a large, angular shell that may pose fit challenges for some users. Its energetic, incisive sound signature appeals to critical listeners but may not suit those seeking a warm or relaxed tuning.
Paraphrased from published reviews & specs - not an original hands-on test. Our AI disclosure.
| Driver | balanced armature |
|---|---|
| Driver type | balanced-armature |
| Impedance | 8.5 Ω |
| Driver | balanced armature |
|---|---|
| Driver type | balanced-armature |
| Impedance | 8.5 Ω |
| Active noise cancelling | No |
|---|
| Connector | 2-pin 0.78 mm |
|---|
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