Hybrid Power System for devices from any manufacturer, but best matched with Ferrums own gear - Hypsos. The intelligent power supply to get the best out of your high end stack - now with 2 outputs.

Inside, the SRM-400S uses a fully FET-based DC amplifier circuit. A custom STAX low-noise Dual FET is installed in the input stage, while the following amplification stages also rely on FET technology throughout. The result is a particularly clean, direct, and low-noise presentation with the speed and transparency electrostatic systems are known for.

Der STAX SR-L700 Mk2 ist ein elektrostatischer Referenzkopfhörer der Lambda-Serie mit außergewöhnlicher Transparenz, natürlicher Räumlichkeit und beeindruckender Feinauflösung.

With the full reprogramming of ERCO’s software in combination with crucial changes in the analog circuitry, Ferrum is introducing a newer and better ERCO. The ERCO Gen 2 will bring their entry-level DAC one step closer to the performance levels of WANDLA, their flagship converter. 

The Auteur Classic combines neutral reproduction with soul. With Black Limba wood and the Atrium Damping System, it offers clarity, warmth, and depth — ideal as an entry into the ZMF sound or as a timeless reference for discerning listeners.

The Cayin HA-3A is a feast for the eyes and ears: visually, the headphone amplifier scores points with its glowing tubes, shiny housing and attractive aluminum front, while the analog flair is underlined by the pointer-armored VU meters. Acoustically, excellent transformers and transformers as well as the puristic two-stage amplifier circuit in Class A operation and single-ended design ensure extremely clear, clean, dynamic and powerful amplification with ample reserves.

STAX SRM-500T – high-quality hybrid electrostatic amplifier with FET input stage, tube output stage, and natural spacious sound for STAX Earspeakers.

A powerhouse in a compact chassis — the Ferrum OOR. Specifically designed to meet the demands of the Susvara, it can effortlessly drive virtually any headphone on the market, delivering an exceptionally dynamic and detailed sound.

For the highest demands on mobile audio - the Cayin C9 II, a tube amplifier for your jacket pocket, with Nutube tubes and customizable sound characteristics.

End-game DAC in a small form factor - Wandla. The only DAC powerful enough to run filters by Jussi Laako, developer of HQPlayer, directly on the device.

Digital audio player for desktop use that plays music files from hard drives, USB sticks, and SD cards — while leaving nothing to be desired in terms of sound quality.

Powerful tube amplifier that comes with 2 sets of tubes to change the sound: to either find the perfect sound for you, or to have 2 amplifiers in one and change from time to time depending on your mood.

The STAX SR-007S is a legendary reference electrostatic headphone delivering exceptional naturalness, deep controlled bass and immersive spatial realism.

The Atrium Closed pairs ZMF’s Atrium Damping System and biocellulose drivers with bold Canary Wood for unmatched isolation, warmth, and depth. Smooth, lush, and powerful, it’s a flagship closed-back that redefines immersive listening.

The ZMF Atrium pairs biocellulose drivers with a patent-pending rear damping system for unmatched depth and openness. Rich, spacious, and immersive — a flagship open-back for those seeking natural tone and ultimate soundstage realism.

Ferrum's high-end converters paired with a really powerful headphone amplifier - the result is one of the mightiest all-in-one devices on the market.

End-game DAC in a small form factor - Wandla. The only DAC powerful enough to run filters by Jussi Laako, developer of HQPlayer, directly on the device.

The STAX SR-009D is a modern flagship electrostatic headphone delivering extraordinary transparency, holographic imaging and refined musicalit

Hybrid-Elektrostatenverstärker von STAX mit FET-Eingang, 6SN7-Röhrenausgang, vollsymmetrischem Aufbau und warmer, räumlicher High-End-Performance.

STAX SRM-700S – uncompromising high-end electrostatic amplifier with discrete FET circuitry, exceptional resolution, and outstanding control for the most demanding STAX Earspeakers.