Ferrum OOR + HYPSOS + Abyss Diana MR

Description

Ferrum OOR Balanced Headphone Amplifier

Reference-Class Headphone Amplifier for Pure, Powerful Sound

The Ferrum OOR is a high-performance balanced headphone amplifier created for audiophiles who demand uncompromising sound quality from their personal listening system. Designed and manufactured in Europe, OOR combines exceptional power output, ultra-low distortion, and precision analog engineering to deliver a transparent, dynamic, and highly musical listening experience.

Whether driving sensitive in-ear monitors, high-impedance dynamic headphones, or demanding planar magnetic designs, the OOR provides effortless control, exceptional clarity, and remarkable detail across the entire frequency range.

Fully Balanced Analog Design

Built around a fully balanced amplifier architecture, the OOR minimizes noise and distortion while maximizing channel separation and signal integrity. The result is a wide, immersive soundstage with accurate imaging, natural tonal balance, and impressive dynamic contrast that brings every recording to life.

Its carefully engineered analog circuitry preserves the original character of your music, allowing vocals, instruments, and fine details to be reproduced with outstanding realism.

High Power for Every Headphone

The OOR is designed to deliver substantial output power across a broad range of headphone impedances, ensuring optimal performance regardless of the headphones you use. From efficient studio headphones to flagship planar magnetic models, the amplifier maintains excellent control, tight bass response, and effortless dynamics without sacrificing transparency or musicality.

This versatility makes OOR an ideal partner for both home audiophile systems and professional monitoring applications.

Flexible Connectivity

Equipped with balanced XLR and unbalanced RCA inputs, the OOR integrates easily with a wide range of DACs and audio sources. Balanced XLR and 4-pin headphone outputs, together with single-ended connections, provide flexibility for virtually any premium headphone setup.

Its precision analog volume control ensures accurate channel balance and smooth adjustment across the entire listening range.

Enhanced Performance with Ferrum HYPSOS

The OOR is fully compatible with the optional Ferrum HYPSOS hybrid power supply through the proprietary Ferrum Power Link (FPL). Pairing the two products provides cleaner, more stable power delivery that can further improve dynamics, background silence, detail retrieval, and overall sonic refinement.

For listeners seeking the highest possible performance, HYPSOS unlocks the full potential of the OOR amplifier.

Premium European Engineering

Constructed with a durable aluminum chassis and minimalist industrial styling, the OOR reflects Ferrum's commitment to precision engineering and long-term reliability. Its compact dimensions make it equally suitable for desktop headphone systems and larger high-end audio installations.

Every aspect of the amplifier has been developed with one goal in mind: delivering reference-quality headphone performance without compromise.

Key Features

• Fully balanced reference headphone amplifier

• High output power for dynamic and planar magnetic headphones

• Ultra-low noise and distortion analog circuitry

• Wide dynamic range with excellent channel separation

• Balanced XLR and unbalanced RCA inputs

• Balanced and single-ended headphone outputs

• Precision analog volume control

• Compatible with Ferrum HYPSOS via Ferrum Power Link (FPL)

• Compact premium aluminum chassis

• Designed and manufactured in Europe

• Ideal for reference home audio and professional monitoring

Discover Every Detail in Your Music

The Ferrum OOR is engineered for listeners who expect the very best from their headphones. Combining powerful balanced amplification, exceptional transparency, and premium European craftsmanship, it delivers a refined listening experience with outstanding accuracy, dynamics, and musical emotion, making it an exceptional centerpiece for any high-end personal audio system.

Ferrum HYPSOS Hybrid Power System

Precision Power Supply for High-End Audio Components

The Ferrum HYPSOS is a premium hybrid linear power supply designed to elevate the performance of compatible audio equipment. Combining the speed and efficiency of modern switching technology with the low-noise characteristics of a linear power supply, HYPSOS delivers exceptionally clean, stable, and precisely regulated power that helps audio components perform at their full potential.

Compatible with a wide range of DACs, headphone amplifiers, streamers, network players, and other low-voltage audio devices, HYPSOS is an ideal upgrade for audiophiles seeking improved clarity, dynamics, and overall system performance.

Hybrid Power Architecture

Unlike conventional external power supplies, HYPSOS utilizes a unique hybrid design that combines the advantages of both linear and switching power technologies. This innovative architecture minimizes electrical noise while maintaining excellent efficiency and fast transient response, providing a stable power source that allows connected components to reproduce music with greater precision and control.

The result is cleaner backgrounds, improved detail retrieval, tighter bass, and a more natural presentation across the entire frequency range.

Adjustable Output Voltage

HYPSOS features a highly flexible adjustable DC output, allowing users to match the power requirements of a wide variety of compatible audio devices. An extensive built-in library of supported products makes setup simple, while manual voltage adjustment provides additional compatibility for equipment outside the preset database.

This versatility enables HYPSOS to serve as a long-term power upgrade across multiple systems and future component changes.

Ferrum Power Link (FPL)

For compatible Ferrum products, HYPSOS supports the proprietary Ferrum Power Link (FPL) connection. This intelligent interface allows both devices to communicate directly, optimizing voltage regulation and power delivery for maximum performance and operational stability.

When paired with Ferrum components such as WANDLA or OOR, the Power Link connection helps unlock even greater levels of sonic refinement and system transparency.

Sweet Spot Tuning

HYPSOS includes Ferrum's exclusive Sweet Spot Tuning (SST) feature, allowing users to make subtle voltage adjustments around the recommended operating value. This fine-tuning capability lets listeners optimize the sonic character of their system according to personal preference and equipment synergy without compromising safety or reliability.

Premium Engineering and User-Friendly Operation

Designed and manufactured in Europe, HYPSOS features a robust aluminum enclosure, a bright front-panel display, and intuitive controls for effortless operation. Its compact footprint integrates neatly into desktop audio systems and full-size Hi-Fi racks while maintaining the premium build quality expected from Ferrum products.

Key Features

• Hybrid linear power supply with advanced switching technology

• Exceptionally low-noise and highly stable DC output

• Adjustable output voltage for broad device compatibility

• Extensive built-in database of supported audio components

• Ferrum Power Link (FPL) for compatible Ferrum products

• Sweet Spot Tuning (SST) for fine voltage optimization

• High-current output for demanding audio equipment

• Compact premium aluminum chassis

• Ideal for DACs, headphone amplifiers, streamers, and other low-voltage audio devices

• Designed and manufactured in Europe

Unlock Greater Performance from Your Audio System

The Ferrum HYPSOS is more than just an external power supply—it is a performance upgrade designed to help your audio components deliver their very best. With its innovative hybrid architecture, adjustable output voltage, intelligent power management, and premium engineering, HYPSOS provides cleaner power that allows music to sound more detailed, dynamic, and lifelike, making it an essential addition to any high-end audio system.

ABYSS DIANA MR Premium High-Performance Headphones

DIANA MR headphones are designed to connect those who appreciate top-shelf headphone sound with the master tape. ABYSS developed this highly refined full-range planar headphone with ultra-low distortion and smooth, addictive clarity.

Key Features and Benefits

• Maximizes listening enjoyment with any level of electronics, from USB dongles to high-end tube and solid-state headphone amplifiers.
• Exceptional midrange performance, ideal for lifelike, intimate vocals without sibilance.
• Relatively low 30-ohm impedance works well with both low-voltage portable gear and higher-power desktop electronics, extracting excellent resolution with lush bass.
• Newly designed, patented planar speaker drivers with a very organic frequency response, delivering a full, natural sound through the bass and midrange, excellent vocals, and an extended, smooth, and clear high-frequency range.
• Reduced weight (315 grams) and a newly added soft sling headband for exceptional long-term listening comfort.
• Fits a wide range of head sizes (95% of users).
• Made in the USA.

Design and Materials

• CNC machined and finished all-aluminum frame components.
• Thinnest and lightest boutique headphone in the world, sculpted from aircraft-grade aluminum.
• High-quality leather headband with soft, race-car-inspired Alcantara® and added padded elements (Vegan option available with cactus leather headband and UltraSuede ear pads).
• High-tech polymer ceramic finish with custom inlays of carbon fiber or exotic wood.
• Large 63 mm patented planar speakers.
• Latest generation Diana ear pads with head-shaped foam and a 'pillow top' cushion (Lambskin or Vegan UltraSuede).
• Fibonacci side hole pattern for optimized sound tuning.
• Magnetic headband size adjustments for long-term reliability.
• Updated headband design for a comfortable, custom fit.
• New custom hard carry case with velvet lining.

Sound and Ear Pad Options

• Stock ear pads provide the most linear frequency response below 20 Hz.
• Bass Ported ear pads (sold separately) offer a tailored bass response with a bump above sub-bass for a fuller sound.
• Suede ear pads offer a subtle softening of upper frequencies.
• Lambskin ear pads maximize detail retrieval and soundstage size.

Specifications

• Weight: 390 grams
• Impedance: 30 ohms
• Sensitivity: 93 dB/mW
• Frequency response: 5 Hz - 55 kHz
• Cable: 1.5 meter/5 FT JPS Labs headphone cable with choice of 3.5 mm, 6.3 mm, 4 pin XLR, or 4.4 mm balanced plug.