Helios - Technical Reference
- TrueX™ 4-Way Crossover
- FLAT™ Technology
- Balanced Armature Design
- Tuned in Collaboration with Subtonic.
- T6 Heat-Treated AL6061 Aluminium Shell w/Anodizing
- Azla Sednafit Standard and Sednafit Short Eartips
- 26AWG Altalune Nova in 4 Wire Configuration
- Available in 3.5mm and 4.4mm terminations
- Hand-Crafted in Singapore
The Technical Reference
The Helios is a statement class product that represents a generational leap for us.
Recognized for it's legendary technical ability, the Helios disproves the stereotypes commonly associated with multi-BA driver earphones. The Helios offers an exceptionally clean sub-bass punch that hits hard, without coloring the clarity of vocal presentations.
Tuned for a smooth and detailed midrange, the Helios also features class-leading treble extension that pushes the limits of balanced armature tweeters. We combined the best features from different monitors into one exceptional product.
Powered by an integrated TrueX™ 4-Way crossover and FLAT™ technology, the Helios is sure to impress with its dynamism and vigour and will deliver an unrivaled audio experience.
Tuned in Collaboration with Subtonic
"There is a strong possibility it is the best sounding kilobuck IEM on the market today. In that vein, I have zero qualms giving the Helios my stamp of approval on the basis of sound quality."
"Resolution is superb across every instrument and frequency range. It’s more than worthy of the Helios’ kilobuck status"
“The Helios was what got me listening to all BA IEMs again… It is incredibly coherent and well-balanced”
"There's clever engineering ongoing here in addition to some compromises too, with the end result being a highly resolving set that is tuned well and sounds great."
“This sets a new benchmark for technical performance at the ~$1000 price point”
"With price range leading technical performance across the board... that's Helios, and I can't really think of anything else that comes close"
Impedance @ 1khz
Featuring Filtered Linear Attenuation Tuning (FLAT™) Technology - a proprietary circuit developed in-house with Subtonic.
Working synergistically with Helios’s TrueX™ 4-way crossover, the Helios will not be affected by impedance mismatch due to difference in source used. You will be able to listen to the same unimpeded sound regardless of the device you are using.
The Helios comes bundled with premium quality Altalune Audio Nova 26AWG Type 2 Litz OCC copper cables that are designed to deliver an exceptional listening experience with great ergonomics and low impedance.
Each cable is designed down to the finest details such as solder used and are completely hand built in Singapore.
Crafted from high-grade T6 heat-treated AL6061 Aluminium alloy, the Helios is engineered for durability and long-lasting performance. The T6 heat treatment significantly improves its strength, hardness, and durability while also enhancing its resistance to corrosion and fatigue. This gives the maximum possible strength and hardness for our IEMs, ensuring that the Helios can withstand even the most rigorous use.
Whether you're performing on stage or listening on the go, the Helios Earphone is built to last
TrueX™ 4-Way Crossover
By utilizing a true 4-way crossover, we are able to tune each driver to the exact specifications we require to achieve the best possible sound.
Each earphone undergoes rigorous channel matching and reference matching with PrecisionMatch™ technology to guarantee a superior listening experience.
To squeeze out every last bit of performance, the Helios comes with Azla Sednafit Standards for an uncompromised listening experience.
TrueX™ Custom 4-Way Crossover with FLAT™ Technology
12Hz - 24kHz, ± 2 dB
104dB/Vrms @ 1 kHz
8.50 Ohms @ 1 kHz
Spring Loaded 0.78mm 2-Pin
26 AWG Pure OCC Copper Litz Nova
0.20 Ohms (2.5mm), 0.25 Ohms (3.5mm), 0.28 Ohms (4.4mm) @ 1kHz
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Do you ship worldwide?
We ship to most countries worldwide. If you can't find your country at checkout, don't hesitate to reach out to us!
Symphonium Audio Is Proud to Offer Complimentary Express Shipping w/Any Purchase of an Earphone or Player Bundle to Most Countries*.
Please refer to checkout page for clarification. Reach out to us if you cannot find your country there!
*See Shipping FAQ for details.
How long will it take to get my order?
It depends on where you are.
Orders processed here will take 2-5 business days to ship.
Overseas deliveries can take 2-6 business days for express mail and anywhere from 5-16 business days for normal tracked mail.
Delivery details will be provided in your confirmation email.
Are taxes included in the price?
No, taxes are not included in our pricing, and will be the responsibility of the customer to check with their local authorities.
We will not be able to underdeclare the value of the order/shipment.
What is the warranty like?
Symphonium Audio offers a one-year limited warranty on the Universal-Fit models.
Symphonium Audio offers a 90-day limited warranty on all cables, to be free from defects in materials and workmanship for a period of 90-days from the date of delivery
All Bundle Products on the Symphonium Audio Webstore (symphoniumaudio.com) are purchased from an authorized dealer and are covered under their respective manufacturer's warranty from the date of shipment.
Read more on our warranty page.
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