Subtonic Audio
Headphones
Best Known For
Headphones
/
In-Ear-Monitor (IEM)
Used Products
0
 Available
Average Price
$5,001-$10,000
Brand Popularity
840
 of 900+
Products Listed
1
Review Count
4
Founding Year
Headquarters
Singapore
Subtonic Audio
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What's unique about the brand

Subtonic Audio is a hifi headphone brand recognized for their SLAM dual-armature woofer system, delivering bass extension down to 3 Hz, and their complex 7-way CTRL crossover that splits signals into narrow bands for precise control. Their flagship Storm IEMs showcase hand-enameled faceplates with a two-thirds rejection rate.

What reviewers are saying

We read all the reviews. Here's what reviewers feel most strongly about:

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Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

From Julian's interview with
.

Products

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Lineup comparison

We think it's helpful to understand how their products compare. To learn more about each, scroll to the section above to click through to individual product pages.

Website author headshot
Julian Shapiro
ExtremeHiFi Writer

Used

Subtonic Audio

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Known For
Headphones
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In-Ear-Monitor (IEM)
Average Price
$2,501-$5,000
Used Products
0
 Available
Brand Popularity
832
 of 900+
Headquarters
Singapore

About the brand

Forté Ears is a hifi audio brand renowned for headphones that use Forte Circuitry Relay crossover architecture featuring hand-selected 1990s inductors and their Acoustic Resonance Chamber system, which treats faceplates as acoustic elements rather than decoration. The brand engineers custom drivers and an in-house ARIA planar magnetic tweeter, integrating them through bone-conduction to achieve a "planar headphone-like" presentation with concert-hall staging.

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page
Known For
Headphones
/
In-Ear-Monitor (IEM)
Average Price
$2,501-$5,000
Used Products
0
 Available
Brand Popularity
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 of 900+
Headquarters
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About the brand

Noble is a hifi audio brand built around founder Dr. John "Wizard" Moulton, an audiologist renowned for hand-carving custom earphones from exotic materials like wood, carbon fiber, and aluminum instead of standard acrylic, with each ear requiring up to 30 hours to complete. The brand distinguishes itself by using bone conduction drivers across multiple models and bringing rare metallurgical techniques like Japanese Mokume-Gane and titanium Damascus to earphone faceplates.

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page
Known For
Headphones
/
In-Ear-Monitor (IEM)
Average Price
$2,501-$5,000
Used Products
0
 Available
Brand Popularity
779
 of 900+
Headquarters
United States

About the brand

Empire Ears is a hifi audio brand best known for headphones featuring their proprietary Weapon IX 9mm rare-earth magnet "subwoofers" with bass-reflex systems. The company hand-builds synX crossover networks without PCBs, assigning more individual audio bands per driver than any other IEM crossover. They also developed EIVEC electrostatic control to integrate EST drivers with dynamic and balanced armature drivers.

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page
Known For
Headphones
/
In-Ear-Monitor (IEM)
Average Price
$2,501-$5,000
Used Products
0
 Available
Brand Popularity
788
 of 900+
Headquarters
China

About the brand

Unique Melody is a hifi audio brand best known for designs that pioneered bone conduction technology in IEMs. The brand combines advanced materials such as silver-palladium alloy bone conduction drivers with 27 ceramic layers and titanium shells. They also created early planar magnetic IEMs and popularized quadbrid driver configurations that combine dynamic, balanced armature, electrostatic, and bone conduction drivers.

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page
Known For
Headphones
/
In-Ear-Monitor (IEM)
Average Price
$2,501-$5,000
Used Products
0
 Available
Brand Popularity
787
 of 900+
Headquarters
Germany

About the brand

Vision Ears is a hifi brand widely known for meticulous midrange presentation across their designs, featuring uncommon engineering like their proprietary HALC acoustic chambers and magnetic switches that let users toggle between different sound signatures directly from the earpiece. The brand creates ultra-luxury IEMs, including unconventional driver configurations—such as using dynamic drivers for midrange rather than bass—plus their exclusive "EVE" concept of limited-edition models produced only within a single calendar year.

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page
Known For
Headphones
/
In-Ear-Monitor (IEM)
Average Price
$2,501-$5,000
Used Products
0
 Available
Brand Popularity
836
 of 900+
Headquarters
Taiwan

About the brand

oBravo is a hifi headphone and IEM brand recognized for its coaxial two-way architecture that places AMT tweeters at the acoustic center of dynamic drivers, creating speaker-like scale and separation in headphones. The brand features user-tunable airflow systems, aggressive miniaturization of AMT technology, and semi-open voicing that delivers amphitheater-scale staging rarely found in in-ear designs.

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

What other products pair best with yours?

Website author headshot
Julian Shapiro
ExtremeHiFi
Brand Page

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