Ferrum Audio OOR Headphone Amplifier
Best high-end amplifier for audiophiles seeking transparent, fatigue-free headphone listening.
This fully balanced amplifier prioritizes pure, fatigue-free musicality over flashy features. While it demands a dedicated space in your setup, the trade-off is a transparent, authoritative sound that makes even the most stubborn headphones finally sing with effortless clarity.
$1995.00
at
Bliss Hifi
Who it's for
- Audiophiles seeking uncolored and highly detailed sound reproduction
- Listeners wanting maximum performance through advanced power supply integration
- Owners of power-hungry planar magnetic or high-impedance headphones
Who should skip it
- Users requiring an all-in-one unit with built-in digital conversion
- Budget-conscious buyers looking for entry-level or mid-range amplification
- Shoppers wanting a complete, single-box solution without additional costs
Performance breakdown
Drive Capability
Effortlessly powers even the most demanding high-impedance planar magnetic headphones.
Sonic Transparency
Discrete circuitry delivers a clean, uncolored signal with exceptional musical clarity.
Build Quality
Robust, compact chassis design reflects meticulous attention to analog engineering standards.
Gain Versatility
Multiple gain stages ensure perfect volume matching across diverse headphone sensitivities.
System Synergy
Proprietary power link integration with Hypsos elevates performance to reference levels.
Ergonomic Simplicity
Intuitive front-panel controls prioritize a distraction-free, tactile listening experience.
Key Specs
Gain
balanced -4 dB, + 6dB, +16 dB / single ended -10 dB, 0 dB, 10 dB
Operation
Fully balanced, proprietary discrete power amp technology
Inputs
XLR, RCA, 2.5 mm DC connector centre positive, proprietary 4-pin DC connector
Outputs
Balanced 4-pin XLR, 6.35 mm jack
Frequency Response
20 Hz – 100 kHz 0.1 dB
Output Power Balanced
1.600 mW into 300 Ω, 8 W into 60 Ω
Dimensions (W x D x H)
8.6 x 8.1 x 2.0 inch / 21.7 x 20.6 x 5 cm
Weight
1.8 kg / 3.97 LBS
Input Impedance
94 kΩ
Preamp Output Impedance (XLR, RCA)
44 Ω, 22 Ω
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