RAAL-requisite
Headphones
Best Known For
Headphones
/
Used Products
0
 Available
Average Price
$5,001-$10,000
Brand Popularity
792
 of 900+
Products Listed
3
Review Count
8
Founding Year
2014
Headquarters
United States
RAAL-requisite
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What's unique about the brand

RAAL-requisite pioneered the world's first full-range true-ribbon headphones with their SR1a, which uses corrugated aluminum ribbons clamped only at the ends and floats freely outside the ear without cups to create a speaker-like soundstage. The brand's extreme low-impedance ribbons require specialised interface units to be run inbetween the amplifier and headphones.

What reviewers are saying

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

Our favorite reviewer quotes:

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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
.

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.

RAAL 1995 Magna

  • Positioning: A mid-range headphone designed to balance performance and affordability.
  • Description: Features two ribbon drivers in a compact design that delivers a focused sound suitable for smaller rooms and everyday use. In comparison to the flagship model, it has a smaller driver surface and simpler tuning, making it a practical choice for users mindful of budget and room size.

RAAL 1995 Immanis

  • Positioning: A high-end headphone intended as the flagship offering in the lineup.
  • Description: Comes with three ribbon drivers and a larger front chamber that boosts driver surface area for a wider soundstage, ideal for larger spaces and detailed audio reproduction. Compared to the Magna, it incorporates advanced tuning and unique design elements.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer

Used

RAAL-requisite

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Headphones
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Used Products
2
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Brand Popularity
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Headquarters
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About the brand

Abyss is a hifi headphone brand that uses a patented single-sided planar-magnetic driver architecture and machines all-aluminum chassis with foamed-aluminum acoustics in their New York facility, targeting a "speakers-in-room" sound rather than typical headphone presentation. The brand offers granular fit adjustments through magnetic pad systems and interchangeable acoustic pads that allow owners to intentionally shift tonal balance, supported by a 10-year warranty and vertical integration from driver production to final assembly.

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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Headphones
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Used Products
0
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United States

About the brand

Rosson is a boutique hifi headphone brand that hand-builds everything in-house in California. Customers can commission fully custom looks and request personalized sound tuning. The brand also offers an uncommon modular upgrade path for existing owners, including resin ring swaps and conversion kits.

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
/
Average Price
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Used Products
1
 Available
Brand Popularity
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Headquarters
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About the brand

Warwick Acoustics specializes in electrostatic headphones featuring patented HPEL transducers that use a 15μm laminated film with no obstructive front grid, reducing diffraction and coloration. Unique also for their drastically higher bias voltage of 1800V compared to 230V or 580V in most other electrostatic headphones. Their BD-HPEL diaphragms use multilayer film with vapor-deposited 24-karat gold conductors and gold-plated stators. Each driver is built into rigid polycarbonate cassettes and software-tuned for precise resonances, delivering electrostatic speed with atypically physical bass and grounded imaging that departs from the usual airy electrostatic presentation.

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
/
Average Price
$1,001-$2,500
Used Products
22
 Available
Brand Popularity
122
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Headquarters
United States

About the brand

Dan Clark Audio sets itself apart with its patented Acoustic Metamaterial Tuning System, which uses waveguides and resonators to shape frequency response to uniquely close adherence to various targets, and a unique tensioning system that ensures consistent performance across their headphone units. Their summit-tier headphones feature an uncommon folding design for portability, and their self-adjusting headbands offer extended comfort during long listening sessions.

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
/
Average Price
$1,001-$2,500
Used Products
6
 Available
Brand Popularity
448
 of 900+
Headquarters
United States

About the brand

ZMF is a boutique hifi headphone brand that crafts one-of-a-kind wooden headphones from stabilized resin-wood billets, each harvested, processed, and assembled in the USA. Their patented acoustic systems include the Atrium Damping System (ADS) and the Caldera's trapezoidal magnet structure. The brand offers lifetime driver warranties and maintains measurement transparency using professional B&K equipment. They have created a distinct enthusiast culture around their annual "ZMF November" limited-edition sales.

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
/
Average Price
$1,001-$2,500
Used Products
0
 Available
Brand Popularity
821
 of 900+
Headquarters
United States

About the brand

Auribus Acoustics is a California-based headphone brand that uses their Linear Extension system and extensive 3D printing throughout their open-back headphones to deliver subwoofer-like bass without DSP—an uncommon approach that reviewers consistently describe as "HD600 with sub-bass."

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