Symphonium Audio Helios Earphone
SKU: 37638668774

Symphonium Audio Helios Earphone

Sale price$56250.00 Regular price$62500.00
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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9

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Description

Symphonium Audio Helios EarphoneTrueX 4 Way Crossover FLAT Technology Full Balanced Armature Design Tuned in Collaboration with Subtonic. Anodized AL6061 Aluminium Shell 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

  • TrueX 4-Way Crossover 
  • FLAT Technology 
  • Full Balanced Armature Design
  • Tuned in Collaboration with Subtonic.
  • Anodized AL6061 Aluminium Shell 
  • 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 unrivalled audio experience.

Tuned in Collaboration with Subtonic

Infinite Linearity

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.

Premium Cables

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.

Exceptionally Durable

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.

PrecisionMatch™

Each earphone undergoes rigorous channel matching and reference matching with PrecisionMatch technology to guarantee a superior listening experience.

Quality Eartips

To squeeze out every last bit of performance, the Helios comes with Azla Sednafit Standards for an uncompromised listening experience.

Specifications
  • Driver Crossover: TrueX Custom 4-Way Crossover with FLAT Technology
  • Frequency Response: 12Hz - 24kHz, ± 2 dB
  • Sensitivity: 104dB/Vrms @ 1 kHz
  • Impedance: 8.50 Ohms @ 1 kHz
  • Socket: Spring Loaded 0.78mm 2-Pin
  • Cable: 26 AWG Pure OCC Copper Litz Nova
  • Cable Impedance: 0.20 Ohms (2.5mm), 0.25 Ohms (3.5mm), 0.28 Ohms (4.4mm) @ 1kHz
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37638668774

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AvidReader
Cuba, US
★★★★★ 4
4 stars
Color: Brown, Size: Rectangle
I like the tray a lot. Quality is very good. Color (Brown) is attractive. Size is perfect for my nightstand. It holds phone, remote, eyeglasses, & phone. I threaded my phone charging cord through a corner of the tray. But it slides too easily off of the nightstand. I'm going to try to find something to stop it from sliding that will stick to the underside of the tray without harming the wood surface on my cherry nightstand.
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Reviewed in the United States on April 13, 2025
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Kathryn L Taylor
Charlottesville, US
★★★★★ 5
faux leather container for men
Color: Blue, Size: Square
It's a very well made container happy with purchase
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Reviewed in the United States on February 28, 2026
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Caveman8080
Lowell, US
★★★★★ 5
Better than other flimsy trays
Color: Black, Size: Rectangle, Color: Black, Size: Rectangle
I got this to replace another flimsy valet tray I got as a gift. This one is way more sturdier, looks nicer, bigger, and has a nice feel.
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Reviewed in the United States on February 12, 2026
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Natalie R.
Battle Creek, US
★★★★★ 5
Looks great, doesn't hold much so measure carefully
Color: Gray, Size: Rectangle
I got this organizer for my husband to keep his stuff by the door. While it's a little smaller than I'd hoped, it looks great in the entryway. It's super easy to snap together, but feels like the material could be damaged easily if you're not careful. He is able to store his keys, wallet, and sunglasses in it, and throws hit hat on top. Overall we are really happy with it.
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Reviewed in the United States on January 31, 2026
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Rin
Draper, US
★★★★★ 5
Perfect
Color: Blue, Size: Square
Just what I needed. The size is perfect as I didn’t want anything too large to place my watches and other accessories inside near the corner of my desk. Its size is essentially 7x7, and the design is sleek compared to other organizer holders. I got the color in blue and it looks stunning with the rest of my setup. I’m unsure about other reviewers, but mine came safely and the leather walls are decently thick, so it’s not too flimsy when buttoned together which holds very securely. There are hole spaces at the bottom corners once assembled, so if you have super small items such as beads or really small jewelry, they could potentially fall out, but most of my items are large enough that won’t be of concern. If you have a wire charger near by, the holes could be used to charge your smartphone inside, which has its own practical usage. Overall, I’d definitely recommend it if you’re on a lookout for a sleek but compact organizer holder, and I personally will consider getting another one in the future for myself for other household belongings.
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Reviewed in the United States on October 13, 2024

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