Give your headphone system a dedicated analogue amplifier with the Ferrum OOR. Fully balanced circuitry, preamplifier functionality and an optional connection to Ferrum's HYPSOS power supply support a flexible desktop listening setup.
Key Features
- Truly balanced signal path β the circuit stays balanced from the XLR inputs and is converted to balanced when you use the RCA inputs, so every source benefits.
- Output transistors that never switch off β Ferrum's steering keeps them in their active state, pushing distortion down to inaudible levels and leaving power instantly available for dynamic peaks.
- Transparent tuning β a neutral, balanced presentation designed to let you listen for hours without fatigue.
- Three-knob front panel β only the essential settings are on the front, so day-to-day use stays simple.
- Ferrum Power Link β an FPL connection lets OOR work with Ferrum's external power system for a further step up.
Good to Know
OOR performs well straight out of the box on its own. Its understated design fits a tidy desk system fed by a separate DAC with either balanced or single-ended outputs.
Shipping & Returns
Free UK Delivery β We ship exclusively within the United Kingdom. Orders are processed within 1 business day, with estimated delivery in 5β8 business days after dispatch.
30-Day Returns β Returns are accepted within 30 days of delivery, subject to our Return & Refund Policy.
Customer Support β MondayβFriday, 9 AMβ5 PM (UK local time). Business days exclude weekends and UK bank holidays.