Ultrafide Audio
Ultrafide Audio designs and builds precision analog audio equipment in the United Kingdom. Their products combine classic British engineering with modern innovation to deliver pure, musical, and uncompromising sound.
Analog Craft. Modern Clarity.
Ultrafide Audio is driven by a passion for authentic sound and the artistry of analog design. Every product is conceived, engineered, and hand-built in the UK, reflecting a commitment to craftsmanship and sonic excellence.
From studio mastering tools to high-fidelity preamplifiers, Ultrafide products are designed to preserve the integrity of every signal—ensuring that what you hear is true, transparent, and emotionally engaging.
Each circuit, component, and enclosure is crafted to achieve one goal: deliver sound with depth, warmth, and absolute precision.
Discover Ultrafide Audio Products
Ultrafide Audio represents the modern renaissance of British analog sound. Each design is a statement of integrity—crafted with precision, tuned by ear, and built to last a lifetime. Whether in the studio or at home, Ultrafide delivers a sonic experience that’s honest, musical, and deeply engaging.
Ultrafide’s analog designs blend traditional craftsmanship with advanced circuitry for a sound that’s rich, natural, and detailed.
From recording studios to high-end listening rooms, Ultrafide brings professional precision to both creative and critical listening environments.
Ultrafide equipment provides unmatched transparency, headroom, and harmonic balance—essential for mastering, mixing, and reference applications.
For audiophiles, Ultrafide brings timeless analog warmth and realism to home hi-fi setups, revealing music in its purest form.
What do hi-fi journalists think about the quality of Ultrafide?
“How does the U4PRE stack up to a well-thoughtout valvev preamplifier…? Exceedingly well and is in fact, prefereable in comparision. This is by far the best solid-state internal preamplifier I´ve heard yet. Putting both the U4PRE and U500DC together you get the very essence of a phenomenally explosive and poweful sounding combo of sonic magnitude.”
Tannoyista
“Both Ultra Sigma models have clearly been devoloped over time in a considered way, meaning what you get is well thought out and finely executed package. Given the quality of these products. I expect we´ll be seeing and hearing a lot more from Ultrafide Audio in the future”
