Ferrum Audio OOR

Fully balanced high-end headphone amplifier for uncompromising analog sound

The Ferrum Audio OOR is a fully balanced high-end headphone amplifier that combines uncompromising analog technology with state-of-the-art amplifier architecture. Developed for discerning audiophiles, the OOR impresses with extraordinary transparency, enormous dynamics, and impressive detail resolution. Its fully discrete amplifier circuit ensures natural, precise, and controlled music reproduction – regardless of whether you are using sensitive in-ear monitors or powerful high-end headphones.

Reference sound quality with discrete amplifier technology

At the heart of the Ferrum OOR is a specially developed discrete amplifier architecture that minimizes distortion while providing maximum power reserves. The result is an exceptionally clean, neutral, and dynamic sound with excellent spatial imaging, precise bass control, and the finest detail rendering. Every recording is reproduced authentically – from quiet nuances to powerful dynamic shifts.

Fully balanced signal path and perfect HYPSOS synergy

The Ferrum OOR features a fully balanced signal path that ensures maximum signal purity and the highest sound fidelity. Via the proprietary Ferrum Power Link (FPL), the amplifier can be connected directly to the Ferrum HYPSOS hybrid power supply. This combination improves power delivery, increases impulse fidelity, and provides even greater control, transparency, and impressively natural music reproduction.

Minimalist design, maximum performance

Developed in Poland, the Ferrum OOR combines timeless design with uncompromising technology. Intuitive operation via three high-quality rotary controls allows for convenient management of all essential functions, while the premium build quality underscores the amplifier's audiophile aspirations. With balanced XLR and unbalanced RCA connections, the OOR integrates flexibly into any high-quality HiFi or headphone setup.

Highlights

• Fully balanced high-end headphone amplifier

• Proprietary discrete amplifier architecture

• Extremely low distortion and high dynamic range

• Precise, natural, and detailed music reproduction

• Balanced 4-pin XLR headphone output

• Unbalanced RCA headphone output

• Ferrum Power Link (FPL) for connecting the HYPSOS power supply

• Easy operation via three high-quality rotary controls

• Developed and manufactured in Poland

• Ideal for high-end headphones and demanding audiophiles

The Ferrum Audio OOR is the ideal choice for music lovers seeking a high-end headphone amplifier with uncompromising sound quality, a fully balanced architecture, and maximum performance. When combined with the Ferrum HYPSOS, the OOR unfolds its full potential and sets new standards for authentic, analog musical enjoyment.

Specifications:
· Frequency response: 20 Hz – 100 kHz ±0.1 dB
· Output power (balanced): 1.6 W into 300 Ω, 8 W into 60 Ω
· Output power (single-ended): 400 mW into 300 Ω, 2 W into 60 Ω
· THD (balanced): 0.00011% / -119 dB (1 mW into 50 Ω)
· Dynamic range: 130 dB (A-weighted)
· Dimensions (W x D x H): 21.7 x 20.6 x 5 cm
· Weight: 1.8 kg

In the box:
1x Ferrum OOR headphone amplifier
1x Power cable
1x AC/DC power adapter

Herstellerangaben:

HEM Sp. z o.o. / Ferrum Audio
475 Jerozolimskie Avenue
05-800 , Pruszków
Poland
info@hem-e.com